A lithium ion battery cathode material containing double alkali metals and a preparation method thereof
By doping Na+ into the cathode material of lithium-ion batteries, the formation of rock salt impurity phase is suppressed, the electrochemical performance of LiNi0.5Mn1.5O4 is improved, the problems of rapid capacity decay and poor cycle performance are solved, and the stability and conductivity of the battery are enhanced, making it suitable for high-power applications.
CN122158561APending Publication Date: 2026-06-05GUIZHOU NORMAL UNIVERSITY +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUIZHOU NORMAL UNIVERSITY
- Filing Date
- 2026-03-26
- Publication Date
- 2026-06-05
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Figure CN122158561A_ABST
Abstract
The embodiment of the application provides a lithium ion battery positive electrode material containing double alkali metals and a preparation method thereof. 1‑x Na x Ni 0.5 Mn 1.5 O 4， The following is referred to as LNMO-Na, wherein 0 < x <= 0.05. To solve the problems of fast capacity attenuation and poor cycle performance of the existing LiNi 0.5 Mn 1.5 O4 positive electrode material, improve the stability, cycle performance and rate performance of the lithium ion battery, and improve the conductivity. It belongs to the technical field of lithium ion batteries.
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