A new family of carbonaceous cathodes for rechargeable batteries through electronic structure tuning engineering  

作　　者：Michel Armand 

机构地区：[1]Centre for Cooperative Research on Alternative Energies,Basque Research and Technology Alliance,Spain

出　　处：《National Science Review》2021年第2期2-3,共2页国家科学评论（英文版）

基　　金：the Basque Government through the ELKARTEK-2016 program。

摘　　要：Electric vehicles(EVs)and grid storage for renewable energies will require batteries in tens of millions of tons,and thus they need to be sustainable.EVs call also for batteries with higher energy density than currently available,and this value is intrinsically limited by the properties of the transition metal oxide(TMO)cathodes[1].There are two possible strategies to overcome these limitations:i)increase the operating voltage in the>4.4 V range;and ii)attempt to use more than one electron per transition metal[2].The first strategy faces problems of electrolyte stability limit and oxygen evolution,and thus safety hazards.The second is limited to vanadium and nickel,but using only1.3 electrons for the former。

关 键 词：tuning OVERCOME ELECTROLYTE 

分 类 号：TM91[电气工程—电力电子与电力传动]