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Battery module

A technology for battery modules and single cells, which is applied to secondary batteries, battery temperature control, battery caps/end caps, etc., can solve problems such as no electrolyte solution, and achieve the effect of improving scattering suppression, preventing damage, and preventing scattering

Active Publication Date: 2012-04-04
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above-mentioned battery assembly (battery module), each of the plurality of unit cells (single cells) is generally provided with an explosion-proof valve for closing the valve port. The valve is opened to suppress the increase in internal pressure. However, in the conventional battery assembly, no technical means for actively suppressing the ejected body such as the vaporized electrolyte solution from scattering to the outside has been implemented.

Method used

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Embodiment Construction

[0047] Hereinafter, embodiments of the invention will be specifically described based on examples of the invention illustrated in the drawings.

[0048] like figure 1 As shown, the battery module of the present invention includes a plurality of square cells 10 arranged side by side at intervals, a plurality of brackets 20 arranged between the cells 10 and outside the outermost cell 10 , A square-shaped end plate 50 disposed on the outside of one of the outermost brackets 20, and a square-shaped end plate (base end plate) 51 disposed on the outside of the other outermost bracket 20 are connected to each other. A plurality of single cells 10 and holders 20 stacked in close contact are clamped by a pair of end plates 50 and 51 on one side and the other side, and the end plates 50 and 51 pass through the upper connection frame 60 and the lower connection frame as connection members. 70 and fastened into one. Furthermore, a voltage sensor assembly 90 (voltage sensor) is coupled t...

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Abstract

The present invention provides a battery module. The battery module includes a plurality of cells (10) and a plurality of holders. The plurality of cells are parallelly arranged in a row at intervals. The plurality of cells have explosion-proof valves (13) which are provided therein and which are capable of opening upon an increase in an inner pressure in the plurality of cells. The plurality of holders are arranged among the cells so as to hold the cells. The holders have holder pieces (33) which are integrally formed therein and which cover at least part of the explosion-valves so as to prevent emissions from the explosion-proof valves from being released in all directions.

Description

technical field [0001] The present invention relates to a battery module constituting a secondary battery mainly used as a power source for driving a motor of a hybrid vehicle or an electric vehicle. Background technique [0002] Conventionally, as such a battery module, there is known a battery assembly (battery module) including a plurality of parallel square unit cells 11 (cells), and partition walls for maintaining the intervals between the unit cells at a constant interval. , an end plate closely attached to the outer surface of the outermost unit cell 11 , and a connecting rod 30 integrating them (see Patent Document 1 described later). [0003] [Patent Document 1] Japanese Patent Laid-Open No. 2006-310309 [0004] However, in the above-mentioned battery assembly (battery module), each of the plurality of unit cells (single cells) is generally provided with an explosion-proof valve for closing the valve port. The internal pressure rise is suppressed by opening the va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/60H01M10/613H01M10/625H01M10/647H01M10/6557H01M10/6566H01M50/209H01M50/227H01M50/24H01M50/271
CPCY02E60/12H01M2/1229H01M10/5055H01M2/1016H01M10/5032H01M2/1077H01M10/647H01M10/6555Y02E60/10H01M50/325H01M50/209H01M50/227H01M50/24H01M50/271
Inventor 小栗浩辅大川司夏梅征彦川田政夫
Owner HONDA MOTOR CO LTD
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