Positive electrode active material for secondary battery, and secondary battery including the same
AssigneeLG Chem, Ltd.
InventorsDae Jin Lee, Wang Mo Jung, Seong Hoon Kang
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Abstract
The present invention provides a positive electrode active material for a lithium secondary battery which is capable of preventing the degeneration of a positive electrode active material and the generation of a gas during operating a battery due to humidity, by including a surface treatment layer of an amorphous glass including an alkali metal oxide and an alkaline earth metal oxide on the surface of a core including a lithium composite metal oxide and by decreasing humidity reactivity, and a secondary battery including the same.
Claims20
A positive electrode active material for a lithium secondary battery, the positive electrode active material comprising:
- a core comprising a lithium composite metal oxide;
- and
- a surface treatment layer positioned on a surface of the core,
- wherein the surface treatment layer comprises an amorphous glass containing an alkali metal oxide and an alkaline earth metal oxide.
Dependencies are inferred from the claim text.