Multi-scale study of thermal stability of lithiated graphite

被引：162

作者：

Chen, Zonghai ^{[1
]}

Qin, Yan ^{[1
]}

Ren, Yang ^{[2
]}

Lu, Wenquan ^{[1
]}

Orendorff, Christopher ^{[3
]}

Roth, E. Peter ^{[3
]}

Amine, Khalil ^{[1
]}

机构：

[1] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

[2] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA

[3] Sandia Natl Labs, Adv Power Sources R&D Dept, Albuquerque, NM 87185 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2011年 / 4卷 / 10期

关键词：

LITHIUM-ION BATTERIES; ACCELERATING RATE CALORIMETRY; HYBRID ELECTRIC VEHICLES; ELECTROCHEMICAL PERFORMANCE; ELECTROLYTE SALT; IMPACT; LIBOB; DIFLUORO(OXALATO)BORATE; SUBSTITUTION; TEMPERATURE;

D O I：

10.1039/c1ee01786a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Safety remains a major issue for the graphite anode used in lithium-ion batteries. The thermal stability of lithiated graphite was studied by atomic-scale characterization and cell tests. The results revealed that the thermal decomposition of the solid-electrolyte interface is the most easily triggered chemical reaction in lithium-ion cells and plays a critical role in determining the battery safety. It was also shown that natural graphite containing a small amount of 3R graphite had much better thermal stability than mesocarbon microbeads that had no detectable 3R graphite.

引用

页码：4023 / 4030

页数：8

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