Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Lithium ion secondary battery and method for manufacturing same
US10193184B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10193184-B2 |
| Application number | US-201515506573-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 4, 2015 |
| Priority date | Sep 30, 2014 |
| Publication date | Jan 29, 2019 |
| Grant date | Jan 29, 2019 |
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- Title
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Abstract
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A method for manufacturing a lithium ion secondary battery, the lithium ion secondary battery including a positive electrode and a negative electrode disposed with a separator sandwiched therebetween and contained together with an electrolytic solution in an outer case including a flexible film, wherein the quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolytic solution into the outer case is 100 μg/mL or less.
First claim
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The invention claimed is: 1. A method for manufacturing a lithium ion secondary battery, the lithium ion secondary battery comprising a positive electrode and a negative electrode disposed with a separator sandwiched therebetween and contained together with an electrolytic solution in an outer case including a flexible film, wherein a quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolytic solution into the outer case is 100 μg/mL or less, the quantity being 5 μg/mL or more. 2. The method for manufacturing a lithium ion secondary battery according to claim 1 , wherein the electrolytic solution is subjected to decompression treatment before injecting the electrolytic solution into the outer case so that a quantity of dissolved nitrogen in the electrolytic solution becomes 100 μg/mL or less, and the electrolytic solution after being subjected to the decompression treatment is injected into the outer case. 3. The method for manufacturing a lithium ion secondary battery according to claim 1 , wherein a quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolytic solution into the outer case is 10 μg/mL or more. 4. The method for manufacturing a lithium ion secondary battery according to claim 1 , wherein a quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolytic solution into the outer case is 80 μg/mL or less. 5. The method for manufacturing a lithium ion secondary battery according to claim 1 , comprising a step of maintaining a battery obtained after injecting the electrolytic solution into the outer case, at a temperature of 35° C. or higher and 60° C. or lower for 48 hours or longer and shorter than 480 hours. 6. The method for manufacturing a lithium ion secondary battery according to claim 1 , wherein a thickness of the flexible film is 5 μm or larger and 150 μm or smaller. 7. A method for manufacturing a lithium ion secondary battery, the lithium ion secondary battery comprising a positive electrode and a negative electrode disposed with a separator sandwiched therebetween and contained together with an electrolytic solution in an outer case including a flexible film, wherein a quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolytic solution into the outer case is 100 μg/mL or less, and the method comprises a step of maintaining a battery obtained after injecting the electrolytic solution into the outer case, at a temperature of 35° C. or higher and 60° C. or lower for 48 hours or longer and shorter than 480 hours. 8. The method for manufacturing a lithium ion secondary battery according to claim 7 , wherein the electrolytic solution is subjected to decompression treatment before injecting the electrolytic solution into the outer case so that a quantity of dissolved nitrogen in the electrolytic solution becomes 100 μg/mL or less, and the electrolytic solution after being subjected to the decompression treatment is injected into the outer case. 9. The method for manufacturing a lithium ion secondary battery according to claim 7 , wherein a quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolytic solution into the outer case is 80 μg/mL or less. 10. The method for manufacturing a lithium ion secondary battery according to claim 7 , wherein a thickness of the flexible film is 5 μm or larger and 150 μm or smaller.
Assignees
Inventors
Classifications
Flexibility or foldability · CPC title
Arrangements or processes for filling with liquid, e.g. electrolytes · CPC title
Thickness · CPC title
with two or more layers of only organic material · CPC title
Metals · CPC title
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- What does patent US10193184B2 cover?
- A method for manufacturing a lithium ion secondary battery, the lithium ion secondary battery including a positive electrode and a negative electrode disposed with a separator sandwiched therebetween and contained together with an electrolytic solution in an outer case including a flexible film, wherein the quantity of dissolved nitrogen in the electrolytic solution in injecting the electrolyti…
- Who is the assignee on this patent?
- Nec Energy Devices Ltd
- 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 Jan 29 2019 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).