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Multi-serial and multi-parallel cylindrical lithium ion battery combination body

A technology of lithium-ion batteries and assemblies, which is applied in battery pack components, secondary battery repair/maintenance, circuits, etc., and can solve problems such as unfavorable processing and forming

Active Publication Date: 2014-03-26
江苏海四达电源有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, if the shape of the traditional cylindrical batteries is connected in series, if the shape is straight, the structure between the fixedly welded connecting piece and the fixed bracket will cause contradictions, which is not conducive to processing and forming. Realization has increased a lot of difficulty

Method used

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  • Multi-serial and multi-parallel cylindrical lithium ion battery combination body
  • Multi-serial and multi-parallel cylindrical lithium ion battery combination body
  • Multi-serial and multi-parallel cylindrical lithium ion battery combination body

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Embodiment Construction

[0024] The present invention will now be described more fully with reference to the accompanying drawings, in which an exemplary embodiment of the invention is shown. These embodiments are provided so that this disclosure will be thorough and complete, and will fully inform those skilled in the art of the concepts of the present invention, like numerals referring to like elements throughout the drawings. Of course, the present invention can have different embodiments, and should not be construed as being limited by some of the embodiments mentioned here. In these drawings, for the sake of clarity, no specific dimensions are indicated.

[0025] figure 1 It is a perspective view of the multi-string multi-parallel combination of cylindrical lithium-ion batteries according to an exemplary embodiment of the present invention. The purpose of the present invention is to provide a combination method of multi-series and multi-parallel assembly of cylindrical lithium-ion batteries. The...

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Abstract

The invention discloses a multi-serial and multi-parallel cylindrical lithium ion battery combination body. The multi-serial and multi-parallel cylindrical lithium ion battery combination body comprises a plurality of single cylindrical lithium ion batteries which are connected to form a serial connection body by spot welding through connection sheets; serial connection combined units are formed by assembling special end brackets and middle connecting and splicing brackets. The plurality of serial connection combined units are spliced to form sheet-shaped multi-serial and multi-parallel combination bodies of the plurality of sets of serial connection combined units by swallow tail slots in the middle connecting and splicing brackets. U-shaped double metal sheets are inserted in the middle connecting and splicing brackets and the plurality of sheet-shaped multi-serial and multi-parallel combination bodies are overlapped and spliced together to be assembled into the multi-serial and multi-parallel cylindrical lithium ion battery combination body, so that the safety protection on the whole set of the multi-serial and multi-parallel cylindrical lithium ion battery combination body is realized. The battery combination body is applicable to manufacturing of large-capacity battery modules for driving motors or energy-storage power stations.

Description

【Technical field】 [0001] The invention relates to a multi-series and multi-parallel assembly of cylindrical lithium-ion batteries. A scientific combination structure is used to connect a plurality of cylindrical lithium-ion batteries in series and in parallel under protective measures, and the assembled battery assembly can be safely used in batteries. module. 【Background technique】 [0002] Lithium-ion battery is an advanced chemical energy storage device with significant advantages such as high specific energy, long cycle life and environmental friendliness. In the past, it mainly produced small-capacity lithium-ion batteries for communication. In recent years, breakthroughs have been made in large-capacity and high-power lithium battery technology. Large-capacity battery packs have been applied in pure electric buses and large-scale energy storage power stations. Commonly used lithium-ion battery types include prismatic and cylindrical batteries. With the advancement of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M2/20H01M2/34H01M50/509H01M50/51H01M50/512H01M50/583
CPCH01M50/502H01M50/20Y02E60/10
Inventor 唐琛明茅海忠邢程王兴威沈晓彦
Owner 江苏海四达电源有限公司
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