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Battery module structure

A technology of battery modules and batteries, which is applied to battery components, structural parts, secondary batteries, etc., can solve problems such as increased safety risks, system heat spread, irregular eruption, etc., and achieves strong thermal safety capabilities and safe High resistance, the effect of avoiding heat spread

Pending Publication Date: 2022-06-07
HUBEI JINQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, there are few systems based on large cylindrical power batteries in the battery industry. Most of them are based on some small cylindrical ternary batteries or cylindrical lithium iron phosphate batteries for module system design. This grouping method has no directional exhaust channels in the system. When thermal runaway occurs in a battery cell, high-temperature and high-pressure gases and substances will erupt irregularly, and the high pressure will easily cause damage to the connectors, and thermal spread will occur in the system, increasing safety risks

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  • Battery module structure
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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

[0032] In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements....

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Abstract

The invention belongs to the technical field of batteries, and discloses a battery module structure which comprises a plurality of exhaust passages, a profiling plate and an energy storage unit. The plurality of exhaust passages are independently arranged at the bottom of the lower box body; the profiling plate is fixedly connected to the lower box body and seals the exhaust passages, the profiling plate comprises a plurality of heat dissipation holes, and the heat dissipation holes are communicated with the exhaust passages; the energy storage unit comprises a plurality of battery cells which are fixedly connected to the profiling plate and correspond to the heat dissipation holes in a one-to-one mode. According to the battery module structure disclosed by the invention, the exhaust passages which are independently arranged at the bottom of the lower box body can directionally discharge high-temperature and high-pressure gas generated by thermal runaway of the battery cells, so that heat spreading caused by the high-temperature gas is avoided, and the battery module structure is high in thermal safety capability and high in safety.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module structure. Background technique [0002] At present, there are few systems based on large cylindrical power batteries in the battery industry. Most of them are based on some small cylindrical ternary batteries or cylindrical lithium iron phosphate batteries for modular system design. This grouping method has no directional exhaust channels in the system. When a cell is thermally out of control, high-temperature and high-pressure gases and substances will erupt irregularly, and the high pressure will easily lead to damage to the connectors, heat spread in the system, and increased safety risks. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a battery module structure capable of directional discharge of high-temperature and high-pressure gas that is thermally out of control of the battery cell, avoiding heat spread, and hav...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/6563H01M50/244
CPCH01M10/613H01M10/6563H01M50/244Y02E60/10
Inventor 张腾飞徐博豪汤杰
Owner HUBEI JINQUAN NEW MATERIALS CO LTD