Sealing gasket and tubular battery incorporating sealing gasket
US-2021344069-A1 · Nov 4, 2021 · US
Alkaline dry cell
US10340530B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10340530-B2 |
| Application number | US-201615760336-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 11, 2016 |
| Priority date | Dec 21, 2015 |
| Publication date | Jul 2, 2019 |
| Grant date | Jul 2, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An alkaline dry cell includes a bottomed cylindrical cell case, a positive electrode packed in the cell case and is made of a stack of n pieces of hollow cylindrical pellets, a negative electrode disposed in a hollow portion of the pellets, a separator interposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution. A thickness of a body portion of the cell case is 0.08 to 0.16 mm. “n” is an integer of 3 or more. An average density d m of manganese dioxide in the n pellets is 2.80 to 3.00 g/cm 3 . A density of manganese dioxide of at least one pellet positioned in a middle portion in a height direction of the stack is 2.75 g/cm 3 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. An alkaline dry cell comprising: a bottomed cylindrical cell case; a positive electrode packed in the cell case, and is made of a stack of n pieces of hollow cylindrical pellets; a negative electrode disposed in a hollow portion of the pellets; a separator interposed between the positive electrode and the negative electrode; and an alkaline electrolytic solution, wherein a thickness of a body portion of the cell case is 0.08 to 0.16 mm, the positive electrode includes manganese dioxide and a conductive agent, n is an integer of 3 or more, an average density d m of manganese dioxide of the n pieces of the pellets is 2.80 to 3.00 g/cm 3 , and a density d c of manganese dioxide of at least one pellet positioned in a middle portion in a height direction of the stack is 2.75 g/cm 3 or less. 2. The alkaline dry cell according to claim 1 , wherein n is an integer of 3 to 8.
Assignees
Inventors
Classifications
Positive electrodes · CPC title
of manganese · CPC title
Wires, rods or strips · CPC title
- H01M6/08Primary
with cup-shaped electrodes · CPC title
Electrodes for primary cells · CPC title
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- What does patent US10340530B2 cover?
- An alkaline dry cell includes a bottomed cylindrical cell case, a positive electrode packed in the cell case and is made of a stack of n pieces of hollow cylindrical pellets, a negative electrode disposed in a hollow portion of the pellets, a separator interposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution. A thickness of a body portion of th…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M6/08. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 02 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).