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US 11,539,039 B2Granted
Negative electrode for lithium secondary battery, lithium secondary battery comprising the same, and preparation method thereof
AssigneeLG Energy Solution, Ltd.
InventorsOh Byong Chae, Eun Kyung Kim, Dong Sub Jung, Sang Wook Woo, Ju Ho Chung, Hee Won Choi
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Abstract
A negative electrode for a lithium secondary battery, in which a LiF layer comprising amorphous LiF in an amount of 30 mol % or more is formed on a negative electrode active material layer comprising a carbon-based active material, a lithium secondary battery comprising the same, and a preparation method thereof.
Claims11
A negative electrode for a lithium secondary battery, the negative electrode comprising:
- a negative electrode active material layer comprising a carbon-based active material;
- a LiF layer which is formed on the negative electrode active material layer and comprises amorphous LiF in an amount of 70 mol % to 95 mol % based on a total number of moles of LiF included in the LiF layer;
- and
- a metal oxide layer formed between the negative electrode active material layer and the LiF layer,
- and wherein the LiF layer has a thickness of 100 nm to 1,000 nm.
2 more elements
Dependencies are inferred from the claim text.