Positive electrode active material and preparation method thereof, positive electrode plate, secondary battery, battery module, battery pack, and electric apparatus
US-2024429384-A1 · Dec 26, 2024 · US
Method for preparing cathode active material of lithium battery
US9105927B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105927-B2 |
| Application number | US-87838110-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 9, 2010 |
| Priority date | Feb 8, 2010 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A method for preparing a spinel type lithium manganese oxide cathode active material, includes providing a number of manganese dioxide hollow spheres and a lithium source powder, mixing the manganese dioxide hollow spheres and the lithium source powder in a liquid medium to achieve a mixture, drying the mixture to remove the liquid medium to achieve a precursor, and sintering the precursor at a sintering temperature of about 600° C. to about 800° C. for about 3 hours to about 10 hours, to achieve a number of spinel type lithium manganese oxide hollow spheres.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for preparing a lithium manganese oxide cathode active material, the method comprising: providing a plurality of first hollow spheres made of manganese dioxide and a lithium source powder; mixing the plurality of first hollow spheres and the lithium source powder in a liquid medium to achieve a mixture, wherein the plurality of the first hollow spheres and the lithium source powder are both in solid state in the mixture, and a ratio of a total vol…
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Cross-Sectional Technologies · mapped topic
- H01M4/505Primary
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9105927B2 cover?
- A method for preparing a spinel type lithium manganese oxide cathode active material, includes providing a number of manganese dioxide hollow spheres and a lithium source powder, mixing the manganese dioxide hollow spheres and the lithium source powder in a liquid medium to achieve a mixture, drying the mixture to remove the liquid medium to achieve a precursor, and sintering the precursor at a…
- Who is the assignee on this patent?
- Li Ya-Dong, Xiao xiao-ling, Lu Jun, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H01M4/505. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).