Title:
LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/042373
Kind Code:
A8
Abstract:
A lithium ion battery. The lithium ion battery comprises: a positive electrode comprising a positive electrode active substance, a negative electrode comprising a negative electrode active substance, a separator arranged between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the negative electrode active substance comprises artificial graphite and/or natural graphite; the non-aqueous electrolyte comprises a lithium salt, an organic solvent and a cyclic sulfate/cyclic sulfite compound; and the ratio of the mass of the non-aqueous electrolyte to the battery capacity is 1.2 g-4/Ah. The lithium ion battery of the present invention has a relatively good cycle performance and a high capacity retention rate during the cycle.
Inventors:
QIAN YUNXIAN (CN)
HU SHIGUANG (CN)
SUN GUIYAN (CN)
LIN XIONGGUI (CN)
DENG YONGHONG (CN)
HU SHIGUANG (CN)
SUN GUIYAN (CN)
LIN XIONGGUI (CN)
DENG YONGHONG (CN)
Application Number:
PCT/CN2021/113011
Publication Date:
April 21, 2022
Filing Date:
August 17, 2021
Export Citation:
Assignee:
SHENZHEN CAPCHEM TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0525; H01M10/0567
Attorney, Agent or Firm:
SHENZHEN ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF:
Previous Patent: LITHIUM ION BATTERY
Next Patent: LITHIUM ION BATTERY NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM ION BATTERY
Next Patent: LITHIUM ION BATTERY NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM ION BATTERY