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Lithium ion battery monomer packaging structure, lithium ion battery monomer and battery pack

A lithium-ion battery and packaging structure technology, which is applied in the direction of charging/discharging secondary batteries, small-sized batteries/battery packs, and large-sized batteries/battery packs, etc., which can solve the complex packaging process and increase the investment in battery monomer equipment Cost and production cost, unfavorable battery monomer production efficiency and other issues, to achieve the effect of simplifying the packaging process, improving space utilization and electrochemical performance, enhancing battery life and service life

Pending Publication Date: 2022-04-05
夏秀明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned packaging process is relatively complicated, which is not conducive to improving the production efficiency of the battery cell, and at the same time increases the equipment investment cost and production cost of the battery cell

Method used

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  • Lithium ion battery monomer packaging structure, lithium ion battery monomer and battery pack
  • Lithium ion battery monomer packaging structure, lithium ion battery monomer and battery pack
  • Lithium ion battery monomer packaging structure, lithium ion battery monomer and battery pack

Examples

Experimental program
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Effect test

Embodiment 1

[0070]In this embodiment, the external dimensions of the battery pack 12 are: length 2630mm, width 1380mm, thickness 135mm, the total volume of the battery pack 12 is 483.89L, the effective volume of the battery pack 12 power distribution box is 40.32L, the battery pack 12 The effective volume is 425.979L, the effective volume of the battery cell array is 284.13L, the effective volume of the battery cell is 267.125L, and the combined volume occupied by the battery pack 12 shell, the internal battery management system and other power distribution modules is 425.979-284.13=141.849 L, the volume utilization rate of the battery cells in the battery pack 12 is 267.125 / 425.98=62.71%. The battery cells in the battery pack 12 are arranged in double arrays: the size of the battery cells is 26mm*604mm*105mm, the thickness of the cell shell is 0.22mm, and the volume of the battery cells is 1.64892L; the capacity of the battery cells It is 204AH, the voltage of the battery cell is 3.2V, t...

Embodiment 2

[0073] In this embodiment, the external dimensions of the battery pack 12 are: length 2630mm, width 1380mm, thickness 135mm, the total volume of the battery pack 12 is 483.89L, the effective volume of the battery pack 12 power distribution box is 40.32L, the battery pack 12 The effective volume is 425.979L, the effective volume of the battery cell array is 284.13L, the effective volume of the battery cell is 268.6068L, and the combined volume occupied by the battery pack 12 shell, the internal battery management system and other power distribution modules is 425.979-284.13=141.849 L, the volume utilization rate of the battery cells in the battery pack 12 is 268.6068 / 425.98=63.06%. The battery cells in the battery pack 12 are arranged in a single array: the size of the battery cells is 22mm*1224mm*105mm, the thickness of the cell shell is 0.20mm, and the volume of the battery cells is 2.82744L; It is 520AH, the voltage of the battery cell is 3.6V, the power of the battery cell ...

Embodiment 3

[0076] In this embodiment, the external dimensions of the battery pack 12 are: length 2630mm, width 1380mm, thickness 135mm, the total volume of the battery pack 12 is 483.89L, the effective volume of the battery pack 12 power distribution box is 40.32L, the battery pack 12 The effective volume is 425.979L, the effective volume of the battery cell array is 284.13L, the effective volume of the battery cell is 265.0956L, and the combined volume occupied by the battery pack 12 shell, the internal battery management system and other power distribution modules is 425.979-284.13=141.849 L, the volume utilization rate of the battery cells in the battery pack 12 is 265.0956 / 425.98=62.23%. The battery cells in the battery pack 12 are arranged in double arrays: the size of the battery cells is 22mm*604mm*105mm, the thickness of the cell shell is 0.20mm, and the volume of the battery cells is 1.39524L; the capacity of the battery cells It is 172AH, the voltage of the battery cell is 3.2V...

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Abstract

The invention provides a lithium ion battery monomer packaging structure, a lithium ion battery monomer and a battery pack. The lithium ion battery monomer packaging structure comprises a packaging groove, a packaging cover and an L-shaped elastic sealing ring, the packaging groove is provided with positive and negative diversion pole columns, a liquid injection hole and an anti-explosion pressure release valve, an annular boss is arranged on the inner wall of the packaging groove, a battery body is arranged in the packaging groove, the L-shaped elastic sealing ring is arranged on the annular boss, and the packaging cover is arranged on the packaging groove. The packaging cover is provided with a cover body and an outer flange arranged at an opening of the cover body, the cover body is arranged on the battery body in the packaging groove, the outer flange is located on the L-shaped elastic sealing ring, and the packaging groove and the part, located above the outer flange, of the L-shaped elastic sealing ring are bent in a mechanical edge covering mode and arranged on the upper surface of the outer flange in a pressing mode. According to the packaging structure, the packaging process of the square battery monomer with the metal shell is simplified to a great extent, the production efficiency of the battery monomer is improved, and the equipment investment cost and the production cost of the battery monomer are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a lithium-ion battery cell packaging structure, a lithium-ion battery cell and a battery pack. Background technique [0002] Lithium-ion battery is a secondary battery that mainly relies on the movement of lithium ions between the positive and negative electrodes. Because of its high voltage, high energy density, low self-discharge and light weight, it has been widely used in various fields. In recent years, with the gradual popularization and application of lithium-ion batteries in the fields of electric tools and power vehicles, it is necessary to develop lithium-ion batteries with larger monomers and higher energy density. Safety performance puts forward higher requirements. [0003] At present, lithium-ion batteries are generally composed of a battery cell body and a metal casing. It includes the main body of the shell and the top cover. The top cover is provided with pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M50/10H01M50/184H01M50/627
Inventor 夏秀明
Owner 夏秀明
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