Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 41, Pages 22751-22755Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b08399
Keywords
lithium ion battery; carbonate electrolytes; gas generation; pouch cells; density function theory
Funding
- National Basic Research Program of China [2015CB251100]
- New Century Excellent Talents in University [NCET-13-0033]
- Beijing Co-construction Project [20150939014]
- State Scholarship Fund of China Scholarship Council [201406035025]
- Center for Electrical Energy Storage, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences
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Gas generation in lithium-ion batteries is one of the critical issues limiting their safety performance and lifetime. In this work, a set of 900 mAh pouch cells were applied to systematically compare the composition of gases generated from a serial of carbonate-based composite electrolytes, using a self-designed gas analyzing system. Among electrolytes used in this work, the composite gamma-butyrolactone/ethyl methyl carbonate (GBL/EMC) exhibited remarkably less gassing because of the electrochemical stability of the GBL, which makes it a promising electrolyte for battery with advanced safety and lifetime.
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