Gel polymer electrolytes combine the advantages of solid and liquid electrolytes, making them promising electrolyte candidates for lithium-metal batteries. However, low-temperature performance is hindered by sluggish ion transport and unstable electrolyte–electrode interfaces. Herein, a topology-driven solvation-decoupling strategy is proposed by designing a topological ester-based polymer electrolyte with dynamically polar side chains, enabling high-voltage lithium-metal batteries to operate reliably at low temperatures. This strategy dynamically reconstructs the local solvation environment within ester electrolytes, which simultaneously enhances lithium salt dissociation and lowers the desolvation energy barrier. The electrolyte exhibits ionic conductivities of 2.39 × 10−3 and 2.1 × 10−4 S cm−1 at 25 ℃ and −30 ℃, respectively, with a Li+ transference number of 0.76. Moreover, the tailored electrolyte composition stabilizes both lithium metal anodes and high-voltage cathodes (LiNi0.6Co0.2Mn0.2O2 and LiCoO2), enabling polymer-based cells to operate below −30 ℃. At −20 ℃ and 0.1 C, Li||LiNi0.6Co0.2Mn0.2O2 cells deliver a high discharge capacity of 151.3 mA h g−1 (>85% of that at 25 ℃). Notably, a Li||LiNi0.6Co0.2Mn0.2O2 pouch cell with a mass loading of 11.7 mg cm−2 can be stably cycled at −30 ℃. The Li||LiNi0.6Co0.2Mn0.2O2 cells demonstrate outstanding stability over a broad temperature range. This study provides a feasible strategy for designing high-performance gel polymer electrolytes for high-voltage lithium-metal batteries at extreme temperatures.

In situ polymerized polyether electrolytes offer superior interfacial contact in lithium metal batteries (LMBs) but suffer from insufficient oxidative stability and uncontrollable interfacial reactions at high voltages. Herein, these limitations are addressed through microenvironment regulation, synergistically integrating chain topology control and weakly coordinating chemistry. A novel poly(ester‐alt‐ether) copolymer electrolyte (PMDGE) is synthesized through in situ copolymerization of 4‐methyl‐1, 3‐dioxane and glutaric anhydride. The extended methyl‐branched alkyl chains and weakly coordinating ester groups intrinsically lower the highest occupied molecular orbital (HOMO) energy of the polymer and weaken Li + ‐polymer interactions, significantly promoting anion participation in the Li + solvation sheath. Crucially, this molecular engineering drives the formation of dual inorganic‐rich interphases: a LiF/Li x BO y F z ‐enriched solid electrolyte interphase effectively suppresses dendrites, while a LiF‐dominant cathode electrolyte interphase mitigates oxidative decomposition. Consequently, PMDGE exhibits an expanded electrochemical window (5.2 V), a high lithium‐ion transference number (0.58), and enables ultra‐stable Li plating/stripping (>1200 h). Remarkably, Li|PMDGE|LiFePO 4 cell demonstrates unprecedented cycling stability, retaining 96.3% capacity after 10000 cycles at 2 C. Furthermore, Li|PMDGE|LiCoO 2 cell maintains 80.2% capacity after 1200 cycles at a cut‐off voltage of 4.45 V. This work demonstrates molecular solvation engineering through polymer structure design as a powerful paradigm for designing high‐performance polymer electrolytes in high‐voltage LMBs.

The development of stable anode constitutes a critical pathway for PIBs advancement, particularly in addressing the structural and capacity degradation induced by repetitive bulky K+ (1.38 angstrom) storage. We present a crystallographic topology engineering strategy through Bi-doped lead titanate perovskite (BPT), achieving simultaneous capacity enhancement and ultra-stable cyclability via three synergistic mechanisms: (1) bandgap reduction coupled with grain refinement through Bi3+ lattice substitution, enhancing intrinsic conductivity and reactions kinetics; (2) spontaneous polarization generating built-in electric fields lowering K+ diffusion barriers; (3) topologically constrained alloying reactions within a rigid cubic framework enabling zero lattice strain during potassiation and depotassiation. The engineered BPT anode demonstrates breakthrough performance metrics: 76 % capacity retention through 7000 cycles at 500 mA g-1 and considerable specific capacity (245 mAh g-1 at 20 mA g-1). This work not only demonstrates zero-strain potassium storage but also introduces an approach for designing stress-immune alloying anodes through crystallographic topological engineering.

Safe fast‐charging anodes with high operating voltage, such as Li 4 Ti 5 O 12 (≈1.55 V) and TiNb 2 O 7 (≈1.65 V), compromise the full‐cell output voltage (2.3 V) to ensure safety, limiting the energy density. Lowering anode potential can effectively enhance energy density while maintaining safety; however, the mechanisms behind require further exploration. Here, methods are proposed to lower voltage by enhancing the M–L covalent bonding, achieved by reducing coordination number, electron‐donating inductive effects, or utilizing pseudo‐Jahn–Teller effect distortion. Using LiLaTiO 4 as a model anode, the pseudo‐Jahn–Teller effect distortion of TiO 6 octahedra is explored to show how it adds covalency to Ti–O bonds, lowing the potential (≈0.3 V). Moreover, bulk LiLaTiO 4 exhibits excellent rate performance (181 mAh g −1 at 1 A g −1 , 122 mAh g −1 at 10 A g −1 ) and good cycling stability (retention rate of 73% after 6000 cycles at 5 A g −1 ). NCM811//LiLaTiO 4 full cell demonstrates exceptionally high‐power performance (118.4 mAh g −1 at 10 C and 95.6 mAh g −1 at 20 C), achieving a voltage of 3.6 V, 57% higher than the 2.3 V, enhancing energy density to levels of graphite‐LiFePO 4 systems. These improvements are attributed to lithium storage sites with low hopping energy barriers and the structure stability of Ruddlesden–Popper perovskite, offering new insights for safe fast‐charging anodes.

Developing lithium-ion batteries with high specific energy and fast-charging capability requires overcoming the potential-capacity trade-off in negative electrodes. Conventional fast-charging materials (e.g., Li4Ti5O12, TiNb2O7) operate at high potentials (>1.5 V vs. Li+/Li) to circumvent lithium plating, yet this compromises specific energy. A viable strategy for enhancing the specific energy is to reduce the potential while avoiding the lithium plating risk; however, the underlying mechanisms remain unclear. Here we demonstrate that enhancing Titanium-Oxygen covalency through pseudo-Jahn-Teller Effect distortion in Ruddlesden-Popper perovskites enables low-potential operation. The Li2La2Ti3O10 negative electrode exhibits a working potential of 0.5 V vs. Li+/Li with initial 139.3 mAh g-1 at 5 A g-1 and 72.9% capacity retention after 5000 cycles. Full cells with LiNi0.8Co0.1Mn0.1O2 positive electrodes deliver 3.45 V average discharge voltage-50% higher than conventional Li4Ti5O12 | |LiNi0.8Co0.1Mn0.1O2 systems-achieving 100 mAh g-1 at 4 A g-1. Mechanistic analysis reveals low Li⁺ migration barriers and stable Ruddlesden-Popper perovskite frameworks enable rapid ion transport.

The intercalation anode material demonstrates as a promising choice for SIBs due to favorable merits of stable structure and cycling, however, the relatively high working voltage impedes its employment. Herein, the design strategy of intercalating an alloying element of Pb into TaS2 (PTS) is presented to lower the working voltage for SIBs anode. The working voltage of TaS2 is effectively reduced upon the intercalation of Pb into nano interlayers, which also enlarges the interlayer spacing and elevates the specific capacity. The reversible mechanism and intact layered structure during discharge and charge promote volume change restraint of alloying element. Optimized reaction kinetics of active pseudocapacitive behavior, enhanced electron and ion transfer facilitates rate capability. Ultimately, PTS realizes reduced average working voltage by 0.6 V with long cycling of 17,000 cycles and considerable specific capacity of 229 mAh g-1 after 17,000 cycles at 50C; PTS||NVP full-cell also achieves considerable specific capacity of 107.7 mAh g-1 and high capacity retention ratio of 97 % after 130 cycles at 2C. The proposed structure not only contributes to reduced working voltage and enhanced specific capacity but also demonstrates a promising route of altering the working voltage of intercalation anode for SIBs.

PIBs are emerging as a promising energy storage system due to high abundance of potassium resources and theoretical energy density, however, progress of PIBs is severely hindered by structural instability and poor cycling of anode material during continual insertion and extraction of larger-sized K+. Hence, developing anode material with structural stability and stable cycling remains a great challenge. Herein, band gap-tuned Mo-doped and carbon-coated lead titanate (CMPTO) with zero-strain K+ storage is presented as ultra-stable PIBs anode. Mo doping introduces narrowed band gap and optimized crystal lattice for enhanced intrinsic electron and ion transfer. Demonstrated by in situ XRD characterizations, the crystal structure stays stable with unchanged peak positions, fully revealing zero-strain characteristic of CMPTO anode during potassium storage for stable cyclic capability. Ultimately, CMPTO anode achieved ultra-stable cycling performance of 7000 cycles at 500 mA g-1 with high capacity retention of 90 % and considerable specific capacity of 130.9 mAh g-1 after 600 cycles at 100 mA g-1; with relatively large density, CMPTO realized eminent volumetric capacity of 1111.09 mAh cm-3 and ultra-long cycling life of 10000 cycles at 7041 mA cm-3. This work introduces a promisingly new route into developing anode materials with ultra-stable performance for PIBs.

Solid polymer electrolytes (SPEs) hold great promise for future applications of high-energy lithium metal batteries (LMBs). Unfortunately, inadequate room-temperature ionic conductivity, sluggish interfacial charge transport, and uncontrolled electrode/electrolyte interface reactions severely limit their widespread applications. Herein, poly(1,3-dioxolane) electrolytes (PDEs) are prepared in situ by introducing lithium difluorophosphate (LiDFP, LiPO2F2) as a multifunctional additive, which not only achieves excellent ionic conductivity but facilitates interfacial charge transport. Meanwhile, a high-mechanical-stability organic-inorganic hybrid solid electrolyte interphase (SEI) is formed by the synergistic effect of PDEs and LiDFP. The enrichment of LiF and LixPOyFz species in SEI formed by the preferential reduction of LiDFP ensures outstanding mechanical stability, and the ring-opening polymerization of 1,3-dioxolane provides the SEI excellent adaptability to the repetitive volume changes of lithium metal anode, which mitigates crack and regeneration of SEI and reduces side reactions between active Li and electrolytes. Therefore, based on PDEs, the symmetric Li cell enables steady cycling for 2000 h. The Li-LiFePO4 cell achieves superior long-term cycling stability (over 1200 cycles) and wide operating temperature (-20 similar to 60 degrees C). Also, the Li-LiNi0.6Mn0.2Co0.2O2 exhibits favorable cycling stability. This study provides solutions to ongoing pain point issues of SPEs and facilitates practical applications of SPEs in high-energy LMBs. A lithium difluorophosphate (LiDFP)-driven approach to trigger a ring-opening polymerization of DOL, which not only achieves excellent ionic conductivity but also facilitates interfacial charge transport. Meanwhile, a high-mechanical-stability organic-inorganic hybrid solid electrolyte interphase is formed by the synergistic effect of Poly-DOL electrolytes and LiDFP. Multiple advantages improved the cycling performance of the battery. image

Polymer-based solid-state electrolytes with excellent processability and flexibility are ideal candidates for commercialisation in lithium-metal batteries. However, the current polymer-based solid-state electrolytes still have many problems such as low ionic conductivity, limited Li+ + transport number and high interfacial resistance with electrodes. To address the above challenges, a solid-state rigid polymer composite electrolyte with high ionic conductivity (2.8 mS cm- 1 ) has been prepared based on the rigid polymer poly(2, 2 '-disulfonyl-4, '-disulfonyl-4, 4 '- '- benzidine terephthalamide) (PBDT). Locally aligned PBDT-EMImN(CN)2 2 grains are interspersed with in-situ formed interconnected LiFSI to form the structure of the polymer composite electrolyte. The formation of defective LiFSI nanocrystals at grain boundaries inside the polymer electrolyte acts as additional conductive networks providing fast Li+ + transportation (t Li + = 0.59). The flexible region in the electrolyte gives excellent interfacial impedance (32.5 Omega cm2) 2 ) with Li-metal electrode. The Li||Li batteries can be stably cycled for over 1000 cycles at 1 mA cm- 2 (25 degrees C). The assembled Li||LiFePO4 4 batteries exhibit excellent cycling and multiplication performance over a wide operating temperature (from-20 to 60 degrees C). Moreover, this electrolyte material exhibits compatibility with high-voltage cathode LiNi 0.6 Mn 0.2 Co 0.2 O 2 batteries. This electrolyte and design strategy is expected to inspire the realization of all-weather practical solid-state lithium-metal batteries.

Solid polymer electrolytes (SPEs) are regarded as the pivotal materials for next-generation battery technology on account of their improved safety and potentially enabling higher energy density chemistry compared to conventional liquid electrolytes. However, the practical application of SPEs still hindered by the limited room temperature ionic conductivity, insufficient physical contact and unstable solid electrolyte interface (SEI) with electrodes. Here we report a class of in-situ polymerized plastic crystal electrolytes (PPCEs) which break the trade-offs between degree of polymerization and ionic conductivity of in-situ polymerized SPEs. The complete polymerized electrolytes combined both the advantages of in-situ polymer electrolytes and plastic crystal electrolytes, exhibiting thin thickness, good ionic conductivity, outstanding electrochemical stability and low interfacial impedance. As a result, symmetric Li cells with PPCE showed a superior long lifespan over 2500 h under 0.5 mA cm- 2 and Li/PPCE/LiFePO4 (LiNi0.8Co0.1Mn0.1O2) cells displayed excellent long-cycling performance under 1.0 C at room temperature. The in-situ polymerized electrolyte system provides an effective strategy for developing safe and high-energy solid-state lithium batteries.

Conversion-alloying anodes have garnered escalating attention with high theoretical capacity, however, they are seriously hindered by large volume distortion and capacity fading. To counter, structural modification needs more exploration. Herein, advantageous structure and high-performance are realized in new amorphous PbSb2 O6 (PSO-a) nanosphere via facile instantaneous precipitation induced amorphization; conversion-alloying mechanism endows it with prominent lithium-storage capability; nanostructure can shorten ion-transfer distance and accommodate volume change outside the bulk of PSO-a; and loosely-stacked isotropic amorphous structure can enhance kinetics both at electrode/electrolyte interfaces and in the bulk. Volume change is synergistically stabilized from within to outside the bulk, leading to accelerated capacity and cycling. As expected, when employed in half-cells with 1 m LiPF6 in ethylene carbonate/diethyl carbonate/dimethyl carbonate/fluoroethylene carbonate (3:3:3:1 by mass) as electrolyte, glass microfiber filter as separator, and pure lithium foil as counter electrode, it realizes eminent performance with high specific capacity of 1512.6 mA h g-1 at 0.1 A g-1 and 755.1 mA h g-1 after 1000 cycles at 3 A g-1 . To the best of the authors' knowledge, this is the first time PbSb2 O6 is utilized as high-performance anode for lithium-ion batteries. Furthermore, this facile strategy provides a promising direction for high-performance amorphous anode material.

The development of solid polymer electrolyte (SPE) systems is a promising strategy for improving the safety of lithium batteries. However, the practical implementation of these systems is often hindered by their limited ionic conductivity at ambient temperatures and poor interfacial contact with the electrodes. To address these issues, a novel pyridine-based organic ionic plastic crystal (OIPC) was synthesized and combined with poly(vinylidene fluoride-co-hexafluoropropylene) (PVH) and lithium bis(fluorosulfonyl)imide (LiFSI) to create a porous SPE, which was named SPE-Pyr1FSI/PVH (80:20). The SPE possessed desirable characteristics such as remarkable mechanical properties, nonflammability, high ionic conductivity (1.18 mS cm−1 at 25 °C), and a large electrochemical window (5.85 V vs. Li+/Li). Moreover, solid-state Li/LiFePO4 cells based on this SPE exhibited excellent rate capability, as well as cycling performance at ambient temperature. Specifically, the discharge capacity of the cells remained at 134.0 mAh g −1 at 1.0 C current density over 500 cycles. This study provides new insights into the design of ambient temperature solid-state electrolytes for lithium batteries and highlights the efficacy of OIPC in enhancing the performance of SPEs.

Solid-state electrolytes (SSEs) have been attached widespread attention as next-generation materials as far as safety and energy density are concerned, but they are severely plagued by the limited oxidative potential, and poor physical contact with electrodes. In the present work, we developed anion-concentrated plastic crystal electrolyte (APCE) with normal lithium salt concentration but high concentration of anion based on ionic plastic crystals (IPCs) contain the same anion lithium salt. This strategy ensures the good stability of as-developed electrolytes and make use of some advantages of concentrated electrolytes such as excellent electrochemical window and superior long-cycling stability with metal anode. Also, the deformable property of IPC ensures good physical contact of APCE with electrodes. As a result, solid-state symmetric Li cells, high-voltage Li/LiNi0.6Co0.2Mn0.2O2 and -5.0 V class Li/LiNi1.5Mn0.5O4 coin cells with APCE exhibit superior long-cycling performance at 25 degrees C. Furthermore, the ionic nature of IPC guarantees the safety of APCE so that it can past the harsh penetration test under practical conditions and the APCE-based pouch cell shows excellent flexibility, acceptable rate performance and a high energy density of 253.1Wh kg-1. It is anticipated that our works provide a strategy for next-generation solid-state batteries.

Garnet-type Li6.75La3Zr1.75Ta0.25O12 (LLZTO) is enlightening great future in solid-state lithium metal batteries due to the considerable ionic conductivity and good compatibility with metallic lithium. Unfortunately, LLZTO is always trapped into the Li2CO3 by-product forming on the surface in a moist atmosphere and becomes difficult for practical application. Herein, we propose an in-situ conversion from the Li2CO3 by-product towards electrochemical active LiCoO2 to turn this disadvantage. The modified LLZTO (M-LLZTO) realizes excellent air stability and performs impressively enhanced electrochemical performance in the structure application of both cathode and composite solid electrolyte (CSE). The prepared CSE delivers high ionic conductivity and good electrochemical stability against Li metal with an ultra-long lifespan over 2000 h in the symmetrical cells. Once working in a solid-state lithium battery with a LiCoO2 cathode, the solid battery maintains a low capacity fade of 4.51 % over 150 cycles and a high average columbic efficiency of 99 %. All these results promise a new insight into the air sensitive solid electrolyte for advanced solid-state lithium batteries.

Titanium-based materials such as TiO2 and Li4Ti5O12 are promising candidates for next-generation lithium-ion batteries (LIBs), but the high operating potential and unsatisfactory specific capacity severely restrict the potential application prospects. Li2TiSiO5 as a novel anode has attracted great attention due to its low-potential and high-capacity properties, but the conversion transition of Li2TiSiO5 to Li4SiO4 and TiO during Li+ intercalation and de-intercalation unfavorably affects the structural stability and hinders Li+ transport. Herein, novel cocoon-like microspheres assembled by Na2TiSiO5 nanotubes (NTSO-T), as the substitute of Li2TiSiO5, are facilely synthesized through a hydrothermal reaction. The hierarchical structure could effectively facilitate the Li+ diffusion, reduces internal strain, and enhances structural stability without greatly reducing the tap density. With a low but safe operating potential of 0.75 V, NTSO-T anode exhibits a high reversible capacity of 400 mAh g(-1) which exceeds most reported Ti-based anodes, and durable long-cycling performance (capacity retention after 3000 cycles reaches 77%). Most importantly, the rate capability of NTSO-T is significantly enhanced. Kinetic reaction analysis has demonstrated the pseudocapacitive contribution in NTSO-T anode dominates the lithium storage kinetics. In addition, ex situ XRD and Raman analysis reveal a partially reversible conversion mechanism occurring in the framework. The excellent electrochemical performance of NTSO-T provides a promising anode candidate for next-generation LIBs.

Abstract Solid-state electrolytes (SSEs) have been attached widespread attention as next-generation materials as far as safety and energy density concerned, but they are severely plagued by the limited oxidative potential, poor physical contact with electrodes and lithium dendrite growth. Organic ionic plastic crystal (OIPC), solid analogues of ionic liquids (ILs), are intrinsic non-flammable, non-volatile and compatible with lithium anode. In the present work, an electrochemical durable polyimide plastic crystal electrolyte (PPCE, up to 5.5 V vs Li/Li+) can be obtained as a result of the good interaction between OIPC and Li salt. Also, the soft, deformable property of OIPC and proper melting point of OIPC-Li salt endure good physical contact with electrodes. Consequently, solid-state dendrite-free Li/PPCE/Li cells show an ultralong cycle life over 1000h under 1.0 mA cm− 2, and room temperature high-voltage Li/PPCE/ LiNi0.6Co0.2Mn0.2O2 cion cells achieve a capacity retention of 80% after 633 cycles under 1.0 C and ~ 5.0V class Li/PPCE/LiNi1.5Mn0.5O4 coins cells keep 91% discharge capacity after 100 cycles under 1.0 C at 25 ℃. The ionic and non-volatile nature of OIPC ensure the safety of PPCE so that it can past the harsh penetration test under practical conditions. Furthermore, the PPCE- based pouch cell shows good flexibility, acceptable rate performance and a high energy density of 223.1Wh kg− 1(based on merely electrolyte and electrodes). It is anticipated that our work provides an avenue for next-generation solid-state batteries.

The explosive demand for lithium-ion batteries (LIBs) in electric vehicles, portable electronics, and smart grids has spurred extensive research in recent years. The key to essential advances in LIBs depends on the search for stable host electrode materials with desirable energy and power densities. In the development of emerging stable host anode materials, the operating potential is an overlooked but crucial parameter because it deeply influences the energy, power, and safety of batteries. The ideal potential should not be too close to the lithium deposition potential like graphite (0.1 V vs. Li+/Li) which would trigger the formation of lithium dendrites under high rates, nor should be too high like spinel Li4Ti5O12 (> 1.5 V vs. Li+/Li) which compromises the batteries’ power and energy density. This mini-review firstly gives an account of several types of titanium-based and vanadium-based compounds as stable host anodes with the average operating potentials around or below 1 V vs. Li+/Li. The mechanisms for stable lithium storage and the origins of the low operating potentials are discussed by combining various characterization technologies. The key barriers and corresponding approaches are summarized for progressive electrochemical performance. Furthermore, several concise perspectives and challenges aiming at further theoretical prediction and practical application are provided.

Silicon-based material have been considered as the most competitive candidate for next-generation anode in lithium-ion batteries (LIBs) due to its high specific energy density, natural abundance and attractive operating voltage. However, silicon-based anodes generally undergo significant volume changes and structural collapse during cycling, resulting in limited battery lifespan. Herein, a multi-strategy optimized in-situ gel electrolyte-binder system (GEBS) is rationally constructed, and electrochemical performances of the LIBs with Silicon-Graphite (Si-Gr) anodes are systematically evaluated by half-cell and full-cells. The in-situ generated polymer skeleton and improved interfacial compatibility of the GEBS effectively preserve the electrode structural integrity. Compared with the commercial liquid electrolyte, the volume change of the anode cycled with GEBS is suppressed from 208 % to 126 %. Benefiting from these merits, the full-cell with LiFePO4 cathode displays stable cycling stability with the capacity retention of 96.8 % after 260 cycles. Besides, the reversible capacity of the LiNi0.6Co0.2Mn0.2O2║Si-Gr full-cell is as high as 121.7 mAh g−1 after 200 cycles (capacity retention of 85.1 %), and the GEBS also exhibits obvious dominance at 55°C. This contribution effectively integrates multiple optimization strategies for Si-based anode and provides a feasible solution to address the challenge of its practical application in LIBs.

Graphite, as the dominant anode for commercial lithium‐ion batteries, features sluggish electrochemical kinetics and low potential close to lithium deposition, leading to poor rate capability and safety issues. Although titanium‐based oxides have received considerable attention, each alternative demonstrates unsatisfactory trade‐offs between capacity, operating potential, rate capability, and lifespan. Here, submicrometer‐sized lithium yttrium titanate (LYTO) is synthesized through facile sol–gel and ion‐exchange reactions. With an average operating potential of 0.3 V versus Li + /Li, the LYTO anode demonstrates a high specific capacity of 236 mAh g –1 and durable cycling performance of 98% capacity retention after 3000 cycles. Impressively, without additional modification, a high‐rate capability is achieved under a current density range from 0.5 C to 100 C (1 C = 200 mA g –1 ), e.g., delivering 112 and 87 mAh g –1 at 60 C and 100 C, respectively. Comprehensive characterizations and computational simulations reveal reversible solid‐solution reactions occurring in the LYTO framework with little lattice change and fast 2D Li + mobility achieved due to a low diffusion energy barrier. After incorporation with a LiFePO 4 cathode, the energy density of the as‐fabricated full cell reaches 2.4 times that of Li 4 Ti 5 O 12 /LiFePO 4 full cell. The double characteristics of LYTO provide a fresh identification for high‐performance anodes.