Anode, and lithium secondary battery and battery pack comprising same
AssigneeLG Energy Solution, Ltd.
InventorsSang Hyun LEE, Donghyuk KIM, Su Min LEE, Yong Ju LEE, Jaeik HYUN
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Abstract
Disclosed is a negative electrode that can prevent thermal runaway under specific temperature conditions while ensuring intended battery characteristics under normal conditions, a lithium secondary battery including the same, and a battery pack. The negative electrode includes a flame-retardant polymer layer provided on a negative electrode active material layer, in which the flame-retardant polymer layer includes a flame retardant that is converted to char to form an oxygen barrier layer when combusted at a temperature of 150° C. or higher.
Claims14
A negative electrode comprising:
- a negative electrode current collector;
- a negative electrode active material layer on the negative electrode current collector;
- and
- a flame-retardant polymer layer on the negative electrode active material layer,
- wherein the flame-retardant polymer layer comprises a flame retardant configured to convert to char when combusted at a temperature of 150° C. or higher.
Dependencies are inferred from the claim text.