Self-Heating Structure and Battery Pack Including the Same
US-2024039074-A1 · Feb 1, 2024 · US
Battery Cell Assembly and Manufacturing Method Therefor
US2025070318A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025070318-A1 |
| Application number | US-202218724484-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 31, 2022 |
| Priority date | Dec 27, 2021 |
| Publication date | Feb 27, 2025 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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Disclosed are a battery cell assembly and a manufacturing method thereof. The battery cell assembly includes a battery cell formed by stacking a plurality of unit cells composed of a cathode, a separator, and an anode; and a thermal insulating cover configured to surround an outer perimeter of the battery cell one or more times.
First claim
Opening claim text (preview).
1 . A battery cell assembly comprising: a battery cell formed by stacking a plurality of unit cells including a cathode, a separator, and an anode; and a thermal insulating cover configured to surround an outer perimeter of the battery cell at least once. 2 . The battery cell assembly of claim 1 , wherein a thickness of the thermal insulating cover is 10 μm or more and 20 μm or less. 3 . The battery cell assembly of claim 1 , wherein the thermal insulating cover is made of a heat-resistant film. 4 . The battery cell assembly of claim 3 , wherein the thermal insulating cover is a polyimide (PI) film. 5 . The battery cell assembly of claim 4 , wherein a thickness of the PI film is 5 μm or more and 10 μm or less. 6 . The battery cell assembly of claim 1 , wherein the thermal insulating cover is wound around the battery cell to be in close contact with the battery cell. 7 . The battery cell assembly of claim 1 , wherein the battery cell has a structure in which a plurality of unit cells in a form of a cathode-separator-anode-separator or in a form of an anode-separator-cathode-separator are stacked. 8 . The battery cell assembly of claim 1 , wherein the battery cell has a structure in which unit cells in a form of a cathode-separator-anode-separator-cathode or unit cells in a form of an anode-separator-cathode-separator-anode are attached to a long separator and then folded and stacked. 9 . A method of manufacturing the battery cell assembly, the method the method comprising: manufacturing a battery cell by stacking a plurality of unit cells, the unit cells comprising a cathode, a separator, and an anode; and forming a thermal insulating cover on a perimeter portion of the battery cell to be wound around a perimeter of the battery cell at least once. 10 . The method of claim 9 , wherein the thermal insulating cover is a polyimide (PI) film. 11 . The method of claim 10 , wherein a thickness of the thermal insulating cover is determined by the number of times the PI film is wound.
Assignees
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Classifications
Pouches or flexible bags · CPC title
having a layered structure · CPC title
Organic material · CPC title
of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators · CPC title
Organic material · CPC title
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Frequently asked questions
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- What does patent US2025070318A1 cover?
- Disclosed are a battery cell assembly and a manufacturing method thereof. The battery cell assembly includes a battery cell formed by stacking a plurality of unit cells composed of a cathode, a separator, and an anode; and a thermal insulating cover configured to surround an outer perimeter of the battery cell one or more times.
- Who is the assignee on this patent?
- Lg Energy Solution Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/654. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Feb 27 2025 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).