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Stacked battery pack based on honeycomb structure

A technology of honeycomb structure and battery pack, which is applied in the direction of battery pack parts, batteries, secondary batteries, etc., can solve problems such as unexisted, and achieve improved packing density, good collision safety, improved collision safety and thermal safety Effect

Inactive Publication Date: 2018-02-02
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] There is no relevant literature report

Method used

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  • Stacked battery pack based on honeycomb structure
  • Stacked battery pack based on honeycomb structure
  • Stacked battery pack based on honeycomb structure

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specific Embodiment

[0031] The present invention is made by casting process or stamping process such as figure 1 The hexagonal integrated honeycomb shell shown is made of ordinary steel shell (thickness 0.2mm).

[0032] like figure 1 As shown, the battery pack shell has a honeycomb structure, with regular hexagonal holes, a wall thickness of 0.2mm, a side length of 10.4mm, and a height of 65mm, stacked in 4 rows and 6 columns.

[0033] like figure 2 As shown, the integrated honeycomb casing 1 of the battery pack has 24 hollow honeycomb holes, which can accommodate 24 cylindrical battery cells 2, wherein the size of the cylindrical battery cells is 17.6 mm in diameter and 59.5 mm in height. The spare part in the hole can be used to place the series-parallel circuit of the battery, the short-circuit protection device, the battery monitoring device, and the pressure relief device. The battery leads to the positive and negative current collectors at both ends. When the battery is connected in par...

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Abstract

The invention discloses a stacked battery pack based on a honeycomb structure which is different from a traditional battery pack stacking mode. The battery pack adopts the design of an integrated honeycomb shell, battery electric cores are placed inside honeycomb holes, and the battery electric cores can be connected in series or in parallel. The hole shape, hole diameter, wall thickness, length,and height of the honeycomb structure in the integrated honeycomb shell are adjusted to adapt the electric cores of cylindrical batteries, square batteries and button batteries, according to the actual needs, and a part of honeycomb holes are selected for use as cooling channels or placement of a phase change material so as to improve heat dissipation and insulation effects of the battery pack. The integrated honeycomb shell of the battery pack has the ability of cushioning, damping, vibration, resisting shock, and protecting battery inner cores, and has good collision safety.

Description

technical field [0001] The invention relates to the fields of lithium-ion battery packs and automobile collision safety, in particular to a battery pack stacked based on a honeycomb structure. Background technique [0002] Lithium batteries are widely used as power batteries in aerospace, automobile and other fields, and are generally used in groups. The thermal safety and collision safety of battery packs are important factors affecting the development of batteries. [0003] In power battery packs, from the perspective of shape, cylindrical battery packs and square battery packs are currently commonly used. Cylindrical battery packs are stacked due to the limitation of the cylindrical shape of the single battery, so the stacking density is not high, but the ventilation and heat dissipation are better. Button batteries are generally used in various electronic products to provide energy, and electronic products generally use single or multiple button batteries. [0004] Whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M10/0525H01M10/058H01M10/48H01M10/52H01M10/613H01M50/112
CPCH01M10/0525H01M10/058H01M10/48H01M10/486H01M10/52H01M10/613H01M2220/20H01M50/112Y02E60/10Y02P70/50
Inventor 许骏吴依静刘冰河贾亦楷
Owner BEIHANG UNIV
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