Title:
LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/149685
Kind Code:
A1
Abstract:
A lithium secondary battery according to the present invention comprises: a cathode comprising a cathode active material layer; and an anode comprising an anode active material layer, wherein the anode active material layer contains an anode active material and the anode active material is composed of silicon. On a capacity-voltage graph measured while a half-cell is discharged with a constant current of 0.1 C after the half-cell comprising the cathode and a lithium metal electrode is manufactured, an inflection point is shown in a voltage range of 3.3 V to 3.7 V and the capacity of the cathode at the inflection point is 3% to 25% of the capacity of the cathode at the end-of-charge voltage.
Inventors:
KIM YOUNG DEOK (KR)
KIM DAE SOO (KR)
KIM DAE SOO (KR)
Application Number:
PCT/KR2023/000870
Publication Date:
August 10, 2023
Filing Date:
January 18, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/052; H01M4/36; H01M4/38; H01M4/525; H01M4/58; H01M10/42
Domestic Patent References:
| WO2017013827A1 | 2017-01-26 |
Foreign References:
| KR20150013101A | 2015-02-04 | |||
| KR20100057605A | 2010-05-31 | |||
| JP6226412B2 | 2017-11-08 | |||
| JP2013065453A | 2013-04-11 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
Download PDF:
Previous Patent: THERAPEUTICALLY ACTIVE SOIL MICROBIAL AGENT, AND USE THEREOF
Next Patent: CAMERA APPARATUS AND OPTICAL DEVICE
Next Patent: CAMERA APPARATUS AND OPTICAL DEVICE