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Wound super capacitor

A supercapacitor, winding technology, applied in the field of capacitors, can solve problems such as diaphragm rupture, and achieve the effect of preventing rupture, improving consistency and prolonging cycle life.

Pending Publication Date: 2019-10-18
南通江海储能技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the diaphragm is easily broken at the junction of the positive and negative poles of the traditional roll-type supercapacitor, a wound-type supercapacitor is proposed

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] see Figure 1-2 , the present invention provides a technical solution: a winding supercapacitor, including a capacitor case 1, a winding core package 2, an electrolyte 3 and a sealing cover 10, the winding core package 2 is composed of a positive pole piece 4, The negative electrode sheet 5, the first porous diaphragm 6 and the second porous diaphragm 7 are wound in four parts, and from the outside to the inside are the first porous diaphragm 6, the negative...

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Abstract

The invention discloses a wound super capacitor. The wound super capacitor includes a capacitor housing, a wound core package, electrolyte and a sealing cover, wherein the wound core package is formedby winding a positive electrode tab, a negative electrode tab, a first porous diaphragm and a second porous diaphragm, and the first porous diaphragm, the negative electrode tab, the second porous diaphragm and the positive electrode tab are arranged sequentially from outside to inside. The wound super capacitor is advantaged in that the positive electrode tab is arranged at an inner side of thesecond porous diaphragm, the positive electrode tab is shorter than the negative electrode tab, a positive voltage is borne, the diaphragms can be effectively prevented from breaking, the cycle life of products is prolonged, the wound structure is simple, super capacitors of different sizes can be processed, and product consistency is improved.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a winding supercapacitor. Background technique [0002] Supercapacitor is a new type of energy storage element. It has the characteristics of high specific energy of battery and high specific power of traditional capacitor. It also has the characteristics of high charge and discharge efficiency and safety. It can be used as a high-power pulse power supply in data memory storage systems, portable There are broad application prospects in many fields such as instrument equipment, communication equipment, electric vehicle hybrid power supply, etc. In the prior art, supercapacitors mainly have two structural forms, one is a button-type capacitor with a sandwich laminated structure, and the other is a The winding capacitor formed by winding the electrode sheet and the diaphragm, the button supercapacitor is difficult to accommodate a large area of ​​electrodes, which limits the incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/22H01G11/26H01G11/52H01G11/74
CPCH01G11/22H01G11/26H01G11/52H01G11/74Y02E60/13
Inventor 杨引许检红陆周姜汉兵杨恩东邵国柱
Owner 南通江海储能技术有限公司
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