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Storage element

A technology for electric storage components and electrode parts, which is applied to electrical components, battery pack components, circuits, etc., and can solve the problems of the retention rate of the capacity of the electrochemical element, the reduction of the output retention rate, etc., and achieve the effect of reducing the retention rate

Active Publication Date: 2021-03-16
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned electrochemical element having a long second separator with a porous coating layer, there is a large range in the retention rate of the capacity or the output retention rate of the electrochemical element (electrical storage element equipped with the electrochemical element). Reduced situation

Method used

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Embodiment Construction

[0070] Below, refer to Figure 1 to Figure 6 One embodiment of the electricity storage element of the present invention will be described. The power storage element includes a primary battery, a secondary battery, a capacitor, and the like. In this embodiment, a chargeable and dischargeable secondary battery will be described as an example of an electric storage element. In addition, the name of each component (component) of this embodiment is a name in this embodiment, and it may differ from the name of each component (component) in background art.

[0071] The power storage device of the present embodiment is a non-aqueous electrolyte secondary battery. More specifically, the power storage element is a lithium ion secondary battery that utilizes movement of electrons accompanying movement of lithium ions. Such an electric storage element supplies electric energy. The power storage elements are used singly or in multiples. Specifically, the power storage element can be u...

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Abstract

Provided is an electricity storage device according to the present embodiment, which includes an electrode body having a long separator having an inorganic layer and in which capacity retention or output retention is hardly lowered. The electricity storage device according to the present embodiment is characterized in that it includes an electrode body having substantially rectangular positive electrodes, substantially rectangular negative electrodes alternately stacked with the positive electrodes, and strip-shaped long separators. It has a substrate layer and an inorganic layer stacked on the substrate layer, and the long separator is disposed between the positive electrode and the negative electrode, and the substrate layer of the long separator faces the negative electrode between the positive electrode and the negative electrode.

Description

technical field [0001] The present invention relates to an electricity storage device including an electrode body having a positive electrode, a negative electrode, and a separator. Background technique [0002] Conventionally, there is known an electrochemical element used in an energy storage element such as a battery, which has alternately arranged rectangular cathodes and anodes and long separators (for example, refer to Patent Document 1). Specifically, as Figure 13 As shown, the electrochemical element includes a plurality of rectangular cathodes 101 , a plurality of rectangular anodes 102 , a plurality of rectangular first separators 103 , and a long second separator 104 . The cathode 101 and the anode 102 constitute a plurality of unit cells 105 alternately arranged with the first separator 103 interposed therebetween, and the plurality of unit cells 105 are arranged such that adjacent unit cells 105 face each other with the cathode 101 and the anode 102 facing each...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M10/0583H01M10/0525H01G11/06
CPCH01M10/0459H01M10/0583H01M10/0525H01G11/06H01G11/12H01G11/76H01G11/82H01G11/52H01G11/26Y02E60/10H01M50/46Y02P70/50Y02E60/13
Inventor 中井健太加古智典宫崎明彦森澄男
Owner GS YUASA INT LTD