Lithium metal secondary battery having improved life characteristics
AssigneeLG Energy Solution, Ltd.
InventorsJong-Keon Yoon, Sol-Ji Park, Hyun-Woong Yun, Kyoung-Ho Ahn, Hoe-Jin Hah
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Abstract
Disclosed is a lithium metal secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a protective layer interposed between the negative electrode and the separator. The protective layer comprises an additive, and wherein the additive comprises a mixture of hexagonal boron nitride (BN) flakes and an ionomer comprising a sulfur (S)-containing anionic group and fluorine (F). The sulfur (S)-containing anionic group is at least one selected from the group consisting of SO42− and SO3−.
Claims12
A lithium metal secondary battery comprising:
- a positive electrode;
- a negative electrode;
- a separator interposed between the positive electrode and the negative electrode;
- and
- a protective layer interposed between the negative electrode and the separator,
- wherein the protective layer comprises an additive, and wherein the additive comprises a mixture of hexagonal boron nitride (BN) flakes and an ionomer comprising a sulfur (S)-containing anionic group and fluorine (F), and
- wherein the sulfur (S)-containing anionic group is SO42−.
A lithium metal secondary battery comprising:
- a positive electrode;
- a negative electrode;
- a separator interposed between the positive electrode and the negative electrode,
- wherein the positive electrode and/or negative electrode comprises a solid electrolyte, and
- wherein the solid electrolyte comprises an additive, wherein the additive comprises a mixture of hexagonal boron nitride (BN) flakes with an ionomer comprising a sulfur (S)-containing anionic group and fluorine (F), and
- wherein the sulfur (S)-containing anionic group is SO42−.
Dependencies are inferred from the claim text.