Journal
MATERIALS EXPRESS
Volume 2, Issue 3, Pages 197-212Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/mex.2012.1075
Keywords
Lithium-Ion Batteries; Safety; Overcharge; Thermal Runaway; Redox Shuttle
Funding
- National Science Foundation of China [20971117, 10979049, 21171015]
- Education Department of Anhui Province [KJ2009A142]
- Chinese Government
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Lithium-ion batteries have been considered to be the most competitive power source of electric vehicles (EV), hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV) and energy storage of green grid. However, as a solution to high energy density storage, lithium-ion batteries have been seriously plagued by the safety issues. In this paper, several key facts and corresponding mechanisms of battery safety issues, including overcharge, thermal runaway, lithium dendrites, current collector dissolution and gas evolution are detailed discussed. Additionally, based on the discussed safety issues, a few of efficient solutions to preventing safety issues, including redox shuttle, flame-retardant (FR) electrolyte additive and positive temperature coefficient (PTC) device, are introduced in brief. This review aimed to achieve deeper understanding the safety issues of lithium-ion batteries based on material chemistry and further develop corresponding positive strategy to these occurred issues.
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