A Poorly Soluble Organic Electrode Material For High Energy Density Lithium Primary Batteries Based On A Multi-Electron Reduction

Here we report an organic cathode material with poor solubility for lithium primary batteries, i.e. indeno[3,2-b]fluorene-6,12-dione. Each carbonyl group experiences a four-electron reduction to a methylene group, resulting in a high energy density of 1392 W h kg(-1), which is among the best results for organic electrode materials.