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 the same
US2016285066A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016285066-A1 |
| Application number | US-201615065058-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 9, 2016 |
| Priority date | Mar 25, 2015 |
| Publication date | Sep 29, 2016 |
| Grant date | — |
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- Title
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Abstract
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A lithium ion secondary battery according to an embodiment of the present disclosure includes: a positive electrode extending along a first direction; a negative electrode extending along the first direction and disposed opposite to the positive electrode along a second direction orthogonal to the first direction; and a separator with a crosslinked structure, extending along the first direction and provided between the positive electrode and the negative electrode. The separator includes an opposite region opposite to the positive electrode and the negative electrode along the second direction, and a surplus region not opposite to the positive electrode and/or the negative electrode along the second direction, and the surplus region has lower porosity than the opposite region.
First claim
Opening claim text (preview).
What is claimed is: 1 . A lithium ion secondary battery comprising: a positive electrode extending along a first direction; a negative electrode extending along the first direction and disposed opposite to the positive electrode along a second direction orthogonal to the first direction; and a separator with a crosslinked structure, extending along the first direction and provided between the positive electrode and the negative electrode, wherein the separator includes an opposite region opposite to the positive electrode and the negative electrode along the second direction, and a surplus region not opposite to the positive electrode and/or the negative electrode along the second direction, and the surplus region has lower porosity than the opposite region. 2 . A method for manufacturing a lithium ion secondary battery including a positive electrode, a separator, and a negative electrode, the method comprising: crosslinking a porous material; forming, by applying heat to the crosslinked porous material, a separator with a crosslinked structure; and stacking sequentially the positive electrode, the separator, and the negative electrode along a second direction so that an end of the separator is not opposite to the positive electrode and/or the negative electrode along the second direction orthogonal to a first direction where the positive electrode extends, wherein a size of the separator with the crosslinked structure in the first direction is larger than a size of the positive electrode and the negative electrode in the first direction. 3 . The method for manufacturing a lithium ion secondary battery according to claim 2 , wherein the step of forming the separator includes thermally cutting the crosslinked porous material. 4 . The method for manufacturing a lithium ion secondary battery according to claim 2 , wherein the step of forming the separator includes cutting the crosslinked porous material and heating the cut porous material.
Assignees
Inventors
Classifications
- H01M10/0525Primary
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title
Construction or manufacture · CPC title
Polyolefins · CPC title
Moulding; Embossing; Cutting · CPC title
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- What does patent US2016285066A1 cover?
- A lithium ion secondary battery according to an embodiment of the present disclosure includes: a positive electrode extending along a first direction; a negative electrode extending along the first direction and disposed opposite to the positive electrode along a second direction orthogonal to the first direction; and a separator with a crosslinked structure, extending along the first direction…
- Who is the assignee on this patent?
- Automotive Energy Supply Corp
- 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 Thu Sep 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).