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Laminated lithium ion battery and preparation method thereof

A lithium-ion battery and lamination technology, which is applied to secondary batteries, battery pack components, circuits, etc., can solve the problem of inability to use laminated lithium-ion batteries, and achieve the effect of reducing the width, ultra-narrow width and increasing capacity

Pending Publication Date: 2018-05-11
SHENZHEN GREPOW BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, ultra-narrow lithium-ion batteries are mainly realized by cylindrical winding batteries, which cannot be realized by laminated lithium-ion batteries.

Method used

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  • Laminated lithium ion battery and preparation method thereof
  • Laminated lithium ion battery and preparation method thereof
  • Laminated lithium ion battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] see Figure 1-12 shown.

[0054] This embodiment provides a laminated lithium-ion battery, which mainly includes a separator bag strip composed of a plurality (at least two) of separator bags 102 sequentially connected in one piece, and a negative electrode sheet 104 .

[0055] see Figure 1~4 As shown, wherein each diaphragm bag 102 is a narrow and long rectangle, the arrangement of the diaphragm bag 102 on the diaphragm bag belt is: all the length edges of each diaphragm bag 102 are facing and parallel to each other, and the two width ends of each diaphragm bag 102 They are respectively located at two opposite edges of the membrane bag belt, and one width end of each membrane bag 102 is connected in a line, and the other width end is connected in a line. A positive electrode sheet 106 is respectively packaged in each diaphragm bag 102, and the tab welding part 101 (the reserved position for externally connecting the tab where the metal current collector is exposed on ...

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Abstract

The invention relates to the field of lithium ion batteries, and discloses a laminated lithium ion battery and a preparation method thereof. The battery comprises a banded diaphragm bag band and at least two negative plates, wherein the banded diaphragm bag band comprises at least two diaphragm bags sequentially connected into a whole; a positive plate is packaged in each diaphragm bag; a pole lugwelding part located on a width end part of each positive plate stretches out of a first length edge of each diaphragm bag band; the diaphragm bag bands are laminated in a Z shape by adopting variousfirst diaphragm sealing sides as folding lines; each diaphragm bag is laminated up and down in a direct facing way along one folding line; one diaphragm bag is spaced between any two adjacent negative plates; one negative plate is spaced between any two adjacent diaphragm bags. By applying the technical scheme, the ultra-narrow laminated lithium ion battery is favorably realized.

Description

technical field [0001] The invention relates to the field of lithium-ion battery manufacturing, in particular to a laminated lithium-ion battery pole suitable for ultra-narrow lithium-ion batteries and a preparation method thereof. Background technique [0002] As people pursue smaller and smaller electronic products, lithium-ion batteries are also required to be suitable for different spaces of various electronic products. For slender products such as smart glasses and earphones, ultra-narrow lithium-ion batteries are required. In the prior art, a battery with a width or diameter equal to or less than about 6 mm is generally called an ultra-narrow lithium-ion battery. [0003] At present, ultra-narrow lithium-ion batteries are mainly realized by cylindrical winding batteries, which cannot be realized by laminated lithium-ion batteries. Contents of the invention [0004] One of the objectives of the embodiments of the present invention is to provide a laminated lithium-io...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/0583H01M50/403H01M50/466
CPCH01M10/0525H01M10/0583H01M10/0585H01M50/403H01M50/463Y02E60/10Y02P70/50
Inventor 周晓玲
Owner SHENZHEN GREPOW BATTERY CO LTD