Positive electrode for lithium ion battery
US-2020168896-A1 · May 28, 2020 · US
Lithium secondary battery and manufacturing method thereof
US12046749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12046749-B2 |
| Application number | US-202117463912-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 1, 2021 |
| Priority date | Nov 28, 2018 |
| Publication date | Jul 23, 2024 |
| Grant date | Jul 23, 2024 |
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- Title
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Abstract
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Provided is a lithium secondary battery with improved t electrochemical characteristics through improvement of the structural stability by including a cathode active material doped with molybdenum (Mo). The lithium secondary battery includes a cathode; an anode; a separator positioned between the cathode and the anode; and an electrolyte. In particular, the cathode active material includes molybdenum (Mo) doped on a composite oxide of lithium and metal including manganese (Mn) and titanium (Ti).
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a cathode active material, comprising: performing milling on metal oxides; drying the milled metal oxides; and performing heat treatment on the dried metal oxides to obtain a cathode active material, wherein the metal oxides comprise oxides of lithium (Li), manganese (Mn), titanium (Ti) and molybdenum (Mo), and wherein the cathode active material comprises a composite having the following formula, Li 1.2 [(Mn 0.4 Ti 0.4 ) 0.95 Mo 0.05 ]O 2 . 2. The method of claim 1 , wherein the milling is performed by ball milling. 3. The method of claim 2 , wherein the ball milling is repeated two or more times each for about 15 minutes at a rotation speed of about 300 rpm. 4. The method of claim 3 , wherein the ball milling is repeated 17 times. 5. The method of claim 1 , wherein the heat treatment is performed in an argon (Ar) atmosphere at a temperature of about 900° C. for about 12 hours.
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Classifications
Energy storage using batteries · CPC title
of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36) · CPC title
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- What does patent US12046749B2 cover?
- Provided is a lithium secondary battery with improved t electrochemical characteristics through improvement of the structural stability by including a cathode active material doped with molybdenum (Mo). The lithium secondary battery includes a cathode; an anode; a separator positioned between the cathode and the anode; and an electrolyte. In particular, the cathode active material includes moly…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Corp, Univ Sejong Ind Acad Coop Foud
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 23 2024 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).