Positive electrode active material and preparation method thereof, positive electrode plate, secondary battery, battery module, battery pack, and electric apparatus
US-2024429384-A1 · Dec 26, 2024 · US
Secondary cell
US2020321594A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020321594-A1 |
| Application number | US-201716303888-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 18, 2017 |
| Priority date | May 27, 2016 |
| Publication date | Oct 8, 2020 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A secondary cell includes an electrode body including a plurality of electrode groups each including a plurality of positive electrodes, a plurality of negative electrodes, and at least one separator, the positive electrodes and the negative electrodes each being alternately stacked on each other with the separator interposed in between; and at least one metal plate disposed between the electrode groups. Electrodes that are disposed at both ends of each of the electrode groups are the negative electrodes. The metal plate is in contact with a mixture layer of a negative electrode constituting at least one of the electrode groups, the metal plate being provided in a noncontact state with conductive members other than the mixture layer.
First claim
Opening claim text (preview).
1 . A secondary cell comprising: an electrode body including a plurality of electrode groups each including a plurality of positive electrodes, a plurality of negative electrodes, and at least one separator, the positive electrodes and the negative electrodes each being alternately stacked on each other with the separator interposed in between; and at least one metal plate disposed between the electrode groups, wherein electrodes that are disposed at both ends of each of the electrode groups are the negative electrodes, the metal plate is in contact with a mixture layer of a negative electrode that constitutes at least one of the electrode groups, the metal plate being provided in a noncontact state with conductive members other than the mixture layer, and the metal plate is larger than a portion in which a mixture layer of each of the positive electrodes are formed, and is provided so as to overlap an entirety of the portion with the negative electrode in between. 2 . The secondary cell according to claim 1 , wherein a thickness of the metal plate is larger than a thickness of a core material of each of the negative electrodes and positive electrodes. 3 . (canceled) 4 . The secondary cell according to claim 1 , wherein the metal plate is smaller than each of the negative electrodes and is provided so as to overlap an entirety of each of the negative electrodes. 5 . The secondary cell according to claim 1 , wherein the separator is not disposed between the electrode groups and the single metal plate is disposed therebetween, and the metal plate is in contact with mixture layers of the negative electrodes that constitute the electrode groups.
Assignees
Inventors
Classifications
- H01M4/364Primary
as mixtures · CPC title
Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges · CPC title
Construction or manufacture · CPC title
Manufacturing or production processes characterised by the final manufactured product · CPC title
arranged between the cells · CPC title
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Frequently asked questions
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- What does patent US2020321594A1 cover?
- A secondary cell includes an electrode body including a plurality of electrode groups each including a plurality of positive electrodes, a plurality of negative electrodes, and at least one separator, the positive electrodes and the negative electrodes each being alternately stacked on each other with the separator interposed in between; and at least one metal plate disposed between the electro…
- Who is the assignee on this patent?
- Panasonic Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/364. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 08 2020 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).