Strategies to curb structural changes of lithium/transition metal oxide cathode materials ＆ the changes＇ effects on thermal ＆ cycling stability

Structural transformation behaviors of several typical oxide cathode materials during a heating process are reviewed in detail to provide in-depth understanding of the key factors governing the thermal stability of these materials. We also discuss applying the information about beat induced structur...

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Published inChinese physics B Vol. 25; no. 1; pp. 68 - 77
Main Author 禹习谦 胡恩源 Seongmin Bak 周永宁 杨晓青
Format Journal Article
LanguageEnglish
Published United States 01.01.2016
Subjects
Cathodes
Evolution
Lithium batteries
Rechargeable batteries
Safety
Strategy
Thermal cycling
Transformations
循环稳定性
正极材料
电化学诱导
结构变化
结构稳定性
过渡金属氧化物
锂离子电池
阴极材料
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Summary:Structural transformation behaviors of several typical oxide cathode materials during a heating process are reviewed in detail to provide in-depth understanding of the key factors governing the thermal stability of these materials. We also discuss applying the information about beat induced structural evolution in the study of electrochemically induced structural changes. All these discussions are expected to provide valuable insights for designing oxide cathode materials with significantly improved structural stability for safe, long-life lithium ion batteries, as the safety of lithium-ion batteries is a critical issue; it is widely accepted that the thermal instability of the cathodes is one of the most critical factors in thermal runaway and related safety problems.
Bibliography:Structural transformation behaviors of several typical oxide cathode materials during a heating process are reviewed in detail to provide in-depth understanding of the key factors governing the thermal stability of these materials. We also discuss applying the information about beat induced structural evolution in the study of electrochemically induced structural changes. All these discussions are expected to provide valuable insights for designing oxide cathode materials with significantly improved structural stability for safe, long-life lithium ion batteries, as the safety of lithium-ion batteries is a critical issue; it is widely accepted that the thermal instability of the cathodes is one of the most critical factors in thermal runaway and related safety problems.
11-5639/O4
thermal stability, cathode, oxide, lithium ion batteries, safety
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
DOE - OTHER
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/1/018205