Battery cell arrangement, battery and motor vehicle

By using a thermally conductive support and deformable notch filler between the battery cell and the support frame, the problem of heat dissipation difficulty is solved, achieving efficient thermal management and a simplified manufacturing process, reducing the risk of thermal breakdown and cost.

CN114730933BActive Publication Date: 2026-01-16BAYERISCHE MOTOREN WERKE AG
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
CN202180006636.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-02-21
Filing Date
2021-01-25
Publication Date
2026-01-16
Estimated Expiration
2041-01-25

AI Technical Summary

Technical Problem

In the existing single-cell battery arrangement structure, heat is difficult to dissipate effectively, leading to temperature gradients and the risk of thermal breakdown. Furthermore, the manufacturing process is complex and costly.

Method used

The design employs a support structure and a notch filler. The support structure is made of a thermally conductive solid material, and the notch filler is filled with a deformable thermally conductive material. The support structure forms a continuous mechanical and thermal connection with the individual battery cells, and the notch filler compensates for manufacturing tolerances and provides large-area heat conduction.

Benefits of technology

This design achieves good heat conduction between the individual battery cell and the support frame, avoids temperature gradients, reduces the risk of thermal breakdown, simplifies the manufacturing process, and reduces costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure HDA0003653226670000011
    Figure HDA0003653226670000011
  • Figure HDA0003653226670000012
    Figure HDA0003653226670000012
  • Figure HDA0003653226670000021
    Figure HDA0003653226670000021
Patent Text Reader

Abstract

The invention relates to a battery cell arrangement, a battery equipped with the battery cell arrangement and a motor vehicle comprising such a battery. The battery cell arrangement has a carrier and a plurality of battery cells, each of which is held in a cell-specific recess of the carrier in parallel orientation to one another. Between the peripheral surface of the battery cell and the inner side of the recess facing the peripheral surface, respectively, a gap filler is arranged, which interconnects the battery cell and the carrier. Here, the carrier is composed of a solid, shape-stable and thermally conductive material, and the gap filler is composed of a durably deformable, thermally conductive material. Furthermore, it is provided that the inner side of the recess extends along the vertical direction of the battery cell over the entire length of the battery cell.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Electricity accumulating unit

    CN101606210A

  • Battery for e.g. hybrid drive integrated vehicle, has cells connected with heat conductive plate and arranged in recesses by holding plate, and supporting element made of hardening material and attached in gap among cells and recess

    DE102009035487A1

  • Filling material and spacer in batteries

    WO2016139038A1

  • Manual tool machine storage battery

    CN104241582A

  • Battery pack

    CN203491315U