Battery cells including resilient pouches
US-2024363933-A1 · Oct 31, 2024 · US
Pouch Film and Method for Manufacturing the Same
US2024421387A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024421387-A1 |
| Application number | US-202418821295-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 30, 2024 |
| Priority date | Jan 12, 2018 |
| Publication date | Dec 19, 2024 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A pouch film according to an embodiment of the present invention includes a first polymer layer, an adhesive layer disposed on one surface of the first polymer layer, a gas barrier layer disposed on the adhesive layer and comprising a sintered body of metal particles, and a second polymer layer laminated on one surface of the gas barrier layer.
First claim
Opening claim text (preview).
1 . A pouch film comprising: a first polymer layer; an adhesive layer disposed on one surface of the first polymer layer; a gas barrier layer disposed on the adhesive layer and comprising a sintered body of metal particles; and a second polymer layer laminated on one surface of the gas barrier layer. 2 . The pouch film of claim 1 , wherein the first polymer layer is a surface protection layer that is an outermost layer of the pouch film, and the second polymer layer is a sealant layer that is an innermost layer of the pouch film. 3 . The pouch film of claim 1 , wherein the first polymer layer is a sealant layer that is an innermost layer of the pouch film, and the second polymer layer is a surface protection layer that is an outermost layer of the pouch film. 4 . The pouch film of claim 1 , wherein each of the metal particles of the gas barrier layer has a diameter of 0.01 μm to 15 μm. 5 . The pouch film of claim 1 , wherein the first polymer layer or the second polymer layer is a sealant layer that is an innermost layer of the pouch film, and an adhesive strength between the sealant layer and the gas barrier layer, measured after being impregnated in an electrolyte for 24 hours at a temperature of 85° C., is 3 N/15 mm to 4.5 N/15 mm. 6 . The pouch film of claim 1 , wherein a water vapor transmission rate (WVTR) of the pouch film, measured under a temperature of 38° C. and a relative humidity of 100%, is 7×10 −3 g/m 2 /day to 9×10 −3 g/m 2 /day. 7 . A secondary battery comprising a battery case including the pouch film of claim 1 .
Assignees
Inventors
Classifications
- H01M50/129Primary
with two or more layers of only organic material · CPC title
on the same side of the cell · CPC title
Metals · CPC title
Organic material · CPC title
characterised by physical properties, e.g. gas permeability, size or heat resistance · CPC title
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Frequently asked questions
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- What does patent US2024421387A1 cover?
- A pouch film according to an embodiment of the present invention includes a first polymer layer, an adhesive layer disposed on one surface of the first polymer layer, a gas barrier layer disposed on the adhesive layer and comprising a sintered body of metal particles, and a second polymer layer laminated on one surface of the gas barrier layer.
- Who is the assignee on this patent?
- Lg Energy Solution Ltd, Lg Energy Soultion Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/129. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 19 2024 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).