Contemporary Amperex Technology Co., Ltd.

Bayerische Motoren Werke Aktiengesellschaft

Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Limited

Quan Fan

Yongsheng Guo

Chengyong Liu

Chengdu Liang

Martin Winter

Tao Zhang

Jakub Reiter

Tobias Placke

Bobing Hu

Sven Klein

Jan-Patrick Schmiegel

Hao Jia

Jun Yang

Lydia Terborg

Ang Fu

Meng Cheng

Embodiments of the present application provide a lithium metal negative electrode, a preparation method therefor and related lithium metal battery and device. The lithium metal negative electrode may comprise: a negative electrode current collector; at least one lithium-based metal layer provided on at least one surface of the negative electrode current collector; and an ion-conducting polymer modification layer, which is located on the surface of one of the at least one lithium-based metal layer and comprises at least catalytic amount of a Lewis acid, the Lewis acid containing cations of a metal capable of forming an alloy-type active material with lithium.

Lithium metal negative electrode, preparation method therefor, and related lithium metal battery and device

A lithium battery including an anode having an active anode material, a cathode having an active cathode material. The cathode material includes lithium nickel cobalt manganese cobalt oxide (NCM). An electrolyte separates the anode and cathode. The electrolyte includes a solvent or solvent mixture and lithium hexafluorophosphate, and a germanium organyl-based electrolyte additive. Also disclosed are uses of the germanium organyl-based electrolyte additive in the lithium battery for enhancing one characteristic selected from the group consisting of reversible capacity, Coulombic efficiency, cyclic stability and combinations thereof.

Lithium battery and use of a germanium organyl-based electrolyte additive as an electrolyte additive therein

An electrolyte for a lithium-ion battery, a lithium-ion battery, a battery module, a battery pack, and an apparatus are provided. The electrolyte includes an organic solvent, an electrolyte lithium salt dissolved in the organic solvent, and an additive, where the additive is a compound represented by following formula I. The electrolyte can inhibit generation of lithium dendrites in the lithium-ion battery, improve cycle performance of the battery, and also improve flame retardancy of the battery, thereby effectively resolving defects in the existing technology.

Electrolyte for lithium-ion battery, lithium-ion battery, battery module, battery pack, and apparatus

This application provides an electrolytic solution and a lithium metal battery containing the electrolytic solution. The electrolytic solution includes a lithium salt, an organic solvent, and an additive. The additive includes a sultam compound represented by Structural Formula I. R is selected from substituted or unsubstituted Cto Chydrocarbyls, where a substituent is selected from a phenyl, Cto Calkyls, or Cto Calkenyls. X is a sulfur atom or a phosphorus atom. Rand Reach are independently selected from an oxygen atom, a fluorine atom, a chlorine atom, a bromine atom, and substituted or unsubstituted C1 to C10 hydrocarbyls. Both Rand Rare not oxygen atoms concurrently.

Electrolytic solution and lithium metal battery containing the same, battery module, battery pack, and device

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Ningde, China

Quan Fan