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Sealed battery, battery pack, and method for manufacturing sealed battery

A sealed battery technology, which is applied in the manufacture of large-sized batteries/battery packs, small-sized batteries/battery packs, and secondary batteries. The effect of manufacturing costs

Pending Publication Date: 2020-04-10
ELIIY POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are cases where a single battery cannot sufficiently supply the power required by the device.

Method used

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  • Sealed battery, battery pack, and method for manufacturing sealed battery
  • Sealed battery, battery pack, and method for manufacturing sealed battery
  • Sealed battery, battery pack, and method for manufacturing sealed battery

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Embodiment Construction

[0035] The sealed battery of the present invention is characterized in that the sealed battery includes an electrode assembly, a first holder, a first conductive plate, an electrolyte, and a container for accommodating the electrode assembly, the first holder, and the electrolyte. The outer casing, the electrode assembly has a laminated structure in which at least one positive electrode, at least one negative electrode, and at least one separator overlap, the first clamping member has a first plate portion and a second plate portion, and the first conductive The plate is joined to the first clamping member, the positive electrode has a positive electrode current collector sheet and a positive electrode active material layer disposed on the positive electrode current collector sheet, and the negative electrode has a negative electrode current collector sheet and a positive electrode active material layer disposed on the negative electrode current collector sheet. The negative el...

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Abstract

The sealed battery according to the present invention includes: an electrode assembly having a laminated structure in which a positive electrode, a negative electrode, and a separator are stacked; anda first clip. The positive electrode has a positive electrode current collector sheet and a positive electrode active material layer, and the negative electrode has a negative electrode current collector sheet and a negative electrode active material layer. The electrode assembly has a positive electrode extending portion formed by the positive electrode current collector sheets overlapping witheach other and extending from the laminated structure, and a negative electrode extending portion formed by the negative electrode current collector sheets overlapping with each other and extending from the laminated structure. The first clip is provided to sandwich and bundle one of the positive electrode extending portion and the negative electrode extending portion between first and second plate portions and has a first pinch opening. The positive electrode extending portion or the negative electrode extending portion bundled by the first clip has a first bent portion formed by bending thecurrent collector sheets with the end portion of the first or second plate portion in the first pinch opening as a fulcrum.

Description

technical field [0001] The invention relates to a sealed battery, a battery pack and a method for manufacturing the sealed battery. Background technique [0002] In recent years, batteries have been used in various applications, and particularly large-capacity batteries are used in power supplies for electric vehicles, power storage, and the like. [0003] When the battery is used as a single cell, the voltage of the battery may be lower than the voltage required by the device. In such a case, it is necessary to connect a plurality of batteries in series and increase the supply voltage to a desired voltage. In addition, there are cases where the single battery cannot sufficiently supply the electric power required by the device. In such a case, it is necessary to connect a plurality of batteries in parallel and increase the supply power to a desired amount. [0004] Therefore, a battery case or a battery pack in which a plurality of batteries are connected in series or in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/26H01M2/02H01M2/06H01M2/10H01M2/30H01M10/04H01M10/0585H01M10/0587H01M50/103H01M50/176H01M50/186H01M50/209H01M50/534H01M50/536H01M50/547
CPCY02E60/10H01M50/10H01M50/20H01M50/531H01M50/54H01M50/538Y02P70/50H01M10/0585H01M50/103H01M50/547H01M50/209H01M50/536H01M50/534H01M50/176H01M50/186
Inventor 今村阳祐松渕健一佐藤裕贵汤浅智行
Owner ELIIY POWER
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