Robust high-temperature potassium-ion batteries enabled by carboxyl functional group energy storage
Xianlu Lu, Xuenan Pan, Dongdong Zhang, Zhi Fang, Shang Xu, Yu Ma, Qiao Liu, Gang Shao, Dingfa Fu, Jie Teng, Weiyou Yang
Abstract
Significance Distinctively different from the popularly reported works, an energy storage mechanism is proposed for exploring robust high-temperature potassium-ion batteries (PIBs) with high cycle stability. This is based on an example of p-phthalic acid with two carboxyl functional groups as the redox centers. The cycle stabilities achieved under both low and high current densities are the best among those of high-temperature PIBs reported previously.
Topics & Concepts
Intercalation (chemistry)Energy storageCurrent densityElectrodeChemistryPotassiumIonElectrolyteMaterials scienceChemical engineeringInorganic chemistryThermodynamicsOrganic chemistryPhysical chemistryPower (physics)EngineeringPhysicsQuantum mechanicsAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced battery technologies research