Electrode and lithium secondary battery comprising same
AssigneeLG Chem, Ltd.
InventorsByoungkuk Son, Minehul Jang, Eunkyung Park, Junghun Choi
Life of this patent
Estimating the term…
Abstract
An electrode and a lithium secondary battery comprising the same, in particularly an electrode comprising an electrode layer, a pre-lithiation prevention layer formed on the electrode layer, and a lithium layer formed on the pre-lithiation prevention layer, which is capable of greatly improving the problem of the reduction of irreversible capacity of a negative electrode while preventing fire caused by a lithiation reaction due to contact between lithium and silicon before assembling a cell, and a lithium secondary battery including the same.
Claims15
An electrode for a lithium secondary battery, comprising:
- an electrode layer;
- a pre-lithiation prevention layer formed on the electrode layer;
- and
- a lithium layer formed on the pre-lithiation prevention layer,
- wherein the electrode layer, pre-lithiation prevention layer, and lithium layer are sequentially stacked, and
- wherein the pre-lithiation prevention layer includes at least one selected from the group consisting of polyethylene oxide, polypropylene oxide, polydimethylsiloxane, polyacrylonitrile, polymethylmethacrylate, polyvinyl chloride, polyvinylidene fluoride, polyvinylidene fluoride-co-hexafluoropropylene, polyethylene imine, polyphenylene terephthalamide, polymethoxy polyethylene glycol methacrylate, and poly 2-methoxyethyl glycidyl ether.
Dependencies are inferred from the claim text.