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Battery pack

一种电池组件、电池元件的技术，应用在电池组零部件、电气元件、二次电池等方向，能够解决液体电解质泄漏等问题，达到接触性改善、避免脱落、优异容积效率的效果

Active Publication Date: 2009-12-30
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When a battery uses a liquid electrolyte, a problem occurs that the liquid electrolyte tends to leak outside the battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0166] According to the first embodiment of the present invention, the following effects can be obtained.

[0167] The battery pack has a square or rectangular case part 1 including an open end, a battery element 4 accommodated therein, a top cover 2 and a bottom cover 3 attached to the open end of the case part 1 . The top cover 2 has concave portions 6a and 6b on both sides of one longer side. The case member 1 has cutout portions 10 a and 10 b exposing at least the concave portions 6 a and 6 b of the top cover 2 . Thus, reverse polarity connection of battery packs can be prevented without sacrificing volumetric efficiency.

[0168] The housing part 1 is composed of a flexible laminate part 1a and a rigid laminate part 1b, the shorter sides 13a and 14a of the flexible laminate part 1a being slightly smaller than the shorter sides 13b and 14b of the rigid laminate part 1b. The flexible laminated part 1 a and the rigid laminated part 1 b are stacked such that only the rigid ...

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Abstract

The invention discloses a box-shaped or plate-shaped battery pack. For example, the battery pack includes a box-shaped or plate-shaped battery pack. The battery pack has a hard outer jacket member, a box-shaped or plate-shaped battery element, a cover, and a circuit board. The hard outer jacket member has a first opening and a second opening formed at both ends. The box-shaped or plate-shaped battery element is contained in the outer jacket member and has electrode terminals. The cover is molded from resin and is fitted to the first opening. The circuit board is connected to the electrode terminal leads and contained in the cover. At least the electrode terminal leads extends from the first opening. The cover has concave portions on both ends of one longer side. The outer jacket member has cut portions that expose at least the concave portions of the cover. At least a longer side of the cover and the outer jacket member are heat-adhered.

Description

[0001] This application is a divisional application of the application with the filing date of January 20, 2006, the application number of 200610073939.6, and the title of the invention "battery assembly". technical field [0002] The present invention relates to a battery pack in which a battery element is covered with an outer jacket member. Background technique [0003] In recent years, with the widespread application of portable electronic devices such as notebook personal computers, mobile phones and personal digital assistants (PDAs), lithium-ion batteries with high voltage, high energy density and light weight have been widely used as power sources for these electronic devices. . [0004] When a battery uses a liquid electrolyte, there occurs a problem that the liquid electrolyte tends to leak outside the battery. In order to solve this problem, a lithium ion polymer secondary battery in which a gel-type polymer film impregnated with a polymer in a nonaqueous electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/40H01M2/04H01M2/06H01M2/02H01M2/00H01M50/147H01M50/172
CPCY02E60/12Y02E60/10
Inventor 铃木文彦高桥修山田弘幸富樫和男石井亨山平隆幸
Owner MURATA MFG CO LTD
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