公开(公告)号：US20200243907A1

公开(公告)日：2020-07-30

申请号：US16735214

申请日：2020-01-06

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Shuirong ZHANG ,  Wenqiang LI ,  Juan MA ,  Chao TANG

IPC: H01M10/0567 ,  H01M10/0568

Abstract: The present application relates to an electrolyte and an electrochemical device. The electrolyte comprises a cesium salt and a nitrile compound. The electrolyte provided in the present application improves rapid charge-discharge performance and cycle performance of a lithium-ion battery while improving the problem of battery gassing during continuous charge.

公开(公告)号：US20200243905A1

公开(公告)日：2020-07-30

申请号：US16454904

申请日：2019-06-27

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Chunrui XU ,  Wenqiang LI ,  Chao TANG ,  Shuirong ZHANG

IPC: H01M10/0564 ,  H01M10/0525

Abstract: The present application relates to an electrolyte, an electrochemical device and an electronic device comprising the same. The electrolyte of the present application includes a cyclic N-containing sulfonyl-compound and at least one of vinylene carbonate, fluoroethylene carbonate, lithium tetrafluoroborate, lithium difluoro(oxalato)borate or lithium difluorophosphate. The electrolyte of the present application may further include a sulfur-oxygen double bond containing compound and a silicon-containing carbonate. Compared with the prior art, using the electrolyte provided by the present application can effectively improve the high-temperature storage, cycle performance and overcharge performance of an electrochemical device, such as a lithium-ion battery.

公开(公告)号：US20200161702A1

公开(公告)日：2020-05-21

申请号：US16406943

申请日：2019-05-08

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Juan MA ,  Shuirong ZHANG ,  Junfei LIU ,  Chao TANG

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525

Abstract: The present application relates to an electrolyte and an electrochemical device. The electrolyte includes an organic solvent, an additive and a lithium salt, the additive including a cyclic borate and a nitrile compound. The electrolyte of the present application has good stability at a high working voltage. In another embodiment of the present application, the combination of the electrolyte and an anode having a high compacted density provides a high energy density for the electrochemical device, and improves the storage, floating charge and dynamicperformance of the electrochemical device.