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A high-capacity battery and a production method thereof

A high-capacity, battery technology, applied in the field of lithium-ion batteries, can solve the problems of unstable battery connectors, immature technology, slow heat dissipation, etc., and achieve the effect of reducing material costs, lowering consistency requirements, and improving energy density.

Pending Publication Date: 2018-12-18
江苏海基新能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When high-capacity and high-current batteries are used in portable high-performance electric tools, digital products, electric vehicles, energy storage and other fields, at present, the main methods to increase energy density are: first, increase material capacity, use high-nickel new materials, high-voltage materials , but this process is immature and the cost is high; the second is that the PACK is lightweight and compact, but because there are two layers of shells between the compact PACK cells (one shell accommodates one cell, and the adjacent cells are separated by a Two-layer shell wall), slow heat dissipation, unstable connection between batteries

Method used

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  • A high-capacity battery and a production method thereof
  • A high-capacity battery and a production method thereof
  • A high-capacity battery and a production method thereof

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Embodiment Construction

[0025] see Figure 1-Figure 3 , the present invention relates to a high-capacity battery, comprising a casing 1, a cover plate 2 and a plurality of bare cells 3, inside the casing 1 there are protrusions 4 corresponding to the front and back sides and the bottom of each bare cell 3, so The top of the bare cell 3 is provided with a positive tab 5 and a negative tab 6 , and the lower end of the cover plate 2 is respectively provided with a positive bus piece 7 and a negative bus piece 8 corresponding to the positive tab 5 and the negative tab 6 . The protrusion 4 has good thermal conductivity and insulation, and while fixing the bare cell, it transmits the heat of the cell to the casing, and then quickly dissipates heat.

[0026] The cover plate 2 is also provided with an explosion-proof valve 9 and a liquid injection hole 10 .

[0027] There is a gap between the two adjacent bare cells 3 . Make the heat dissipation space inside the battery large.

[0028] The contact area be...

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PUM

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Abstract

The invention relates to a high-capacity battery, comprising a shell, a cover plate and a plurality of bare cells. The shell is internally provided with protrusions corresponding to the front and rearsides and the bottom of each bare cell. The top of the bare cell is provided with a positive electrode lug and a negative electrode lug. The lower end of the cover plate is provided with a positive electrode bus piece and a negative electrode bus piece respectively corresponding to the positive electrode lug and the negative electrode lug. The invention can greatly increase capacity, simplify battery PACK, reduce cost, have large heat dissipation area, improve battery consistency, ensure battery to work in the same environment, and greatly improve battery pack performance.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a high-capacity battery and a production method thereof. Background technique [0002] When high-capacity and high-current batteries are used in portable high-performance electric tools, digital products, electric vehicles, energy storage and other fields, at present, the main methods to increase energy density are: first, increase material capacity, use high-nickel new materials, high-voltage materials , but this process is immature and the cost is high; the second is that the PACK is lightweight and compact, but because there are two layers of shells between the compact PACK cells (one shell accommodates one cell, and the adjacent cells are separated by a Two-layer shell wall), slow heat dissipation, and unstable connections between batteries. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/655H01M10/04H01M2/20H01M2/22H01M50/204H01M50/247H01M50/249H01M50/271H01M50/298H01M50/507H01M50/516H01M50/528
CPCH01M10/04H01M10/613H01M10/655H01M50/20H01M50/502H01M50/528Y02E60/10Y02P70/50
Inventor 刘艺乔志鹏葛科朱冠华赵琪王云鹏付欣欣林德斌
Owner 江苏海基新能源股份有限公司