Title:
SECONDARY BATTERY, ELECTRONIC DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/084368
Kind Code:
A1
Abstract:
The present invention provides a novel positive electrode active material. The present invention also provides a secondary battery having excellent charge and discharge characteristics. This secondary battery has a positive electrode, wherein: the positive electrode has a positive electrode active material; the positive electrode active material includes lithium, a transition metal M, oxygen, a first additive element, and a second additive element; the second additive element has a function for mitigating distortion of the crystal structure that occurs due to a first element; the first additive element is titanium; and the second additive element is one or more selected from nickel and aluminum.
Inventors:
YAMAZAKI SHUNPEI (JP)
IKEDA TAKAYUKI (JP)
YOSHITOMI SHUHEI (JP)
SAITO JO (JP)
IKEDA TAKAYUKI (JP)
YOSHITOMI SHUHEI (JP)
SAITO JO (JP)
Application Number:
PCT/IB2023/060401
Publication Date:
April 25, 2024
Filing Date:
October 16, 2023
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H01M4/525; H01M4/36; H01M4/505
Domestic Patent References:
| WO2019244936A1 | 2019-12-26 | |||
| WO2010029745A1 | 2010-03-18 | |||
| WO2007052712A1 | 2007-05-10 |
Foreign References:
| JP2021093356A | 2021-06-17 | |||
| CN108987695A | 2018-12-11 | |||
| JP2018125126A | 2018-08-09 |
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