文章信息/Info

Title:

Research Progress on the Cathodic Interfaces of All-Solid-State Lithium-Ion Batteries

文章編號:

1674-3962(2020)04-0253-08

作者:

李煜宇; 李真

（華中科技大學材料科學與工程學院 材料成形與模具技術國家重點實驗室，湖北 武漢 430074）

Author(s):

Li Yuyu;  Li Zhen

(State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)

關鍵詞:

全固態鋰離子電池; 正極界面; 穩定性; 電化學性能

Keywords:

all-solid-state lithium-ion batteries;  cathodic interface;  stability;  electrochemical performance

分類號:

TM912

DOI:

10.7502/j.issn.1674-3962.202001013

文獻標志碼:

A

摘要:

全固態鋰離子電池以其高能量密度和高安全性成為具有廣泛應用前景的下一代儲能技術。然而，全固態鋰離子電池的容量過低和壽命過短限制了其在儲能領域的應用。其中，正極材料（活性材料、電子導電劑、離子導電劑及固態電解質等）固�补探缑娣�定性不佳限制了全固態鋰離子電池的容量利用率和循環壽命。綜上，介紹和討論了正極材料固-固界面穩定性及優化方法，包括化學穩定性、電化學穩定性、機械穩定性和熱穩定性等，同時歸納了常用的全固態鋰離子電池正極材料固�补探缑鎯灮�方法，為全固態鋰離子電池的開發和應用提供參考。

Abstract:

All-solid-state lithium-ion batteries (ASS-LIBs) is a promising next generation energy storage (EES) technology due to their high energy density and excellent safety. However, low capacity and short cycle life of ASS-LIBs restrict their application in EES. The cathodic capacity utilization and cycle life of ASS-LIBs are limited by the poor solid-solid interfacial stability of cathodic materials (including active material, electronic conductor, ionic conductor and the solid-state electrolyte). In this review, the stability of solid-solid interface of cathodic materials in ASS-LIBs and the optimization methods are overviewed and discussed, including chemical stability, electrochemical stability, mechanical stability and thermo stability. Meanwhile, the common stratagem for the stability of solid-solid cathodic interface optimization in ASS-LIBs are summarized. We hope that the review can provide a comprehensive information for the development and application of ASS-SIBs.