Alternately-stacked laminated secondary battery and manufacturing method thereof

A secondary battery, laminated technology, applied in the direction of secondary battery manufacturing, secondary batteries, battery components, etc., to achieve the effect of reducing initial investment costs, optimizing the production process, and reducing the frequency of rework

Active Publication Date: 2018-11-13
李嫊罗
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the problems existing in the above-mentioned technologies. The present invention provides a lamination based on cross-stacking in which a complete battery electrode assembly is formed by adding unipolar sheets between unipolar groups and unipolar groups. Type secondary battery, the battery can reduce the situation that the battery performance does not meet the requirements due to the bad unipolar sheet

Method used

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  • Alternately-stacked laminated secondary battery and manufacturing method thereof
  • Alternately-stacked laminated secondary battery and manufacturing method thereof
  • Alternately-stacked laminated secondary battery and manufacturing method thereof

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Embodiment Construction

[0033] The advantages, features and implementation methods of the present invention can be seen in the specific embodiments in the detailed description of the drawings. However, it does not mean that the present invention is not limited to the embodiments mentioned below, and will be presented in various forms. The embodiments mentioned herein are to make the present invention more complete, and also to make other persons skilled in the art more clearly understand the technical scope of the present invention. The present invention is based on the scope of the contents covered by the claims.

[0034] The terminology used in this specification is only for the purpose of describing the embodiments, and does not mean that the present invention is limited to the content involved in this document. Even if not stated separately, the original electrode group referred to in the present invention may be single or multiple. "Include" used in this specification does not exclude the exis...

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Abstract

The present invention relates to an alternately-stacked laminated secondary battery and a manufacturing method thereof. The disclosed secondary battery is formed by alternately stacking integrally formed monopolar groups and positive and negative monopolar sheets, thereby reducing cases where the battery performance is not satisfactory due to poor positive and negative monopolar sheets. The existing problems can be effectively solved by manufacturing the laminated secondary battery according to the method provided by the present invention. The monopolar groups and the pole pieces are alternately stacked, and the manufacturing process of the monopole groups and the pole pieces is relatively simple. In the process, the defective products can be effectively screened in advance, and the reworkfrequency can be significantly reduced. Moreover, the invention uses a monopolar group and monopolar sheet stacking method, which can effectively reduce the initial investment cost of a monopole group and the monopole sheet manufacturing apparatus.

Description

technical field [0001] The invention relates to a secondary battery and a preparation method thereof, in particular to a cross-stacked secondary battery and a preparation method thereof. Background technique [0002] Secondary batteries, also known as rechargeable batteries or storage batteries, refer to batteries that can be activated by charging the active material after the battery is discharged and continue to be used. Using the reversibility of chemical reactions, a new battery can be assembled, that is, after a chemical reaction is converted into electrical energy, the chemical system can be repaired with electrical energy, and then converted into electrical energy by chemical reaction, so it is called a secondary battery (rechargeable battery). Rechargeable Battery). The main rechargeable batteries on the market are "nickel metal hydride", "nickel cadmium", "lead acid (lead battery)", "lithium ion (including lithium battery and lithium ion polymer battery)" and so on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04
CPCH01M10/0472H01M10/0463Y02E60/10Y02P70/50H01M10/0413H01M10/0436H01M10/045H01M10/0459H01M10/049H01M50/46
Inventor 李嫊罗
Owner 李嫊罗
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