公开(公告)号：US20180351209A1

公开(公告)日：2018-12-06

申请号：US15981716

申请日：2018-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yingjie ZHAN ,  Jian Yan ,  Songjun Shi ,  Lan Xie ,  Wenhao Liu

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/36 ,  H01M4/525 ,  H01M4/505

CPC classification number: H01M10/0567 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/028 ,  H01M2300/004

Abstract: The present disclosure provides a lithium-ion battery, which comprises: a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material and an electrolyte. The positive electrode active material comprises: a core and a coating layer coating a surface of the core and comprising boron. The electrolyte comprises a lithium salt, a non-aqueous organic solvent and an electrolyte additive, the electrolyte additive comprises an organic titanium compound. The coating layer of the positive electrode active material of the lithium-ion battery according to the present disclosure contains boron, and the electrolyte of the lithium-ion battery contains the organic titanium compound, under the combined effect of the coating layer containing boron and the electrolyte containing the organic titanium compound, the lithium-ion battery has excellent high temperature cycle performance and excellent high temperature storage performance.

公开(公告)号：US10826122B2

公开(公告)日：2020-11-03

申请号：US15981716

申请日：2018-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yingjie Zhan ,  Jian Yan ,  Songjun Shi ,  Lan Xie ,  Wenhao Liu

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/02

Abstract: The present disclosure provides a lithium-ion battery, which comprises: a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material and an electrolyte. The positive electrode active material comprises: a core and a coating layer coating a surface of the core and comprising boron. The electrolyte comprises a lithium salt, a non-aqueous organic solvent and an electrolyte additive, the electrolyte additive comprises an organic titanium compound. The coating layer of the positive electrode active material of the lithium-ion battery according to the present disclosure contains boron, and the electrolyte of the lithium-ion battery contains the organic titanium compound, under the combined effect of the coating layer containing boron and the electrolyte containing the organic titanium compound, the lithium-ion battery has excellent high temperature cycle performance and excellent high temperature storage performance.