Multi-electron Reaction Materials for High-Energy-Density Secondary Batteries:Current Status and Prospective  

作　　者：Xinran Wang Guoqiang Tan Ying Bai Feng Wu Chuan Wu 

机构地区：[1]Beijing Key Laboratory of Environmental Science and Engineering,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China [2]Experimental Center of Materials Sciences and Engineering,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Electrochemical Energy Reviews》2021年第1期35-66,共32页电化学能源评论（英文）

基　　金：support from the National Basic Research Program of China(Grant Nos.2015CB251100,2009CB220100,2002CB211800);the National Natural Science Foundation of China(Grant Nos.21975026,51804290);the Beijing Natural Science Foundation(Grant Nos.L182023,L182056);.G.Tan acknowledges the support from Beijing Institute of Technology Teli Young Fellow Program(No.3090011181903);X.Wang thanks the support from the Beijing Institute of Technology Research Fund Program for Young Scholars(2019CX04092).

摘　　要：To address increasing energy supply challenges and allow for the effective utilization of renewable energy sources,transformational and reliable battery chemistry are critically needed to obtain higher energy densities.Here,significant progress has been made in the past few decades in energetic battery systems based on the concept of multi-electron reactions to overcome existing barriers in conventional battery research and application.As a result,a systematic understanding of multi-electron chemistry is essential for the design of novel multi-electron reaction materials and the enhancement of corresponding battery performances.Based on this,this review will briefly present the advancements of multi-electron reaction materials from their evolutionary discovery from lightweight elements to the more recent multi-ion effect.In addition,this review will discuss representative multi-electron reaction chemistry and materials,including ferrates,metal borides,metal oxides,metal fluorides,lithium transition metal oxides,silicon,sulfur and oxygen.Furthermore,insertion-type,alloy-type and conversion-type multi-electron chemistry involving monovalent Li^(+) and Na^(+) cations,polyvalent Mg^(2+) and Al^(3+) cations beyond those of alkali metals as well as activated S^(2−) and O^(2−) anions are introduced in the enrichment and development of multi-electron reactions for electrochemical energy storage applications.Finally,this review will present the ongoing challenges and underpinning mechanisms limiting the performance of multi-electron reaction materials and corresponding battery systems.

关 键 词：Multi-electron reaction Multi-ion effect Lightweight element Secondary battery Energy density 

分 类 号：TM912[电气工程—电力电子与电力传动]