Battery module and its manufacturing method

A battery module and battery technology, applied in battery pack components, circuits, electrical components, etc., can solve problems such as increased operating costs and more heat

Inactive Publication Date: 2008-05-14
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this battery pack generates more heat than small batteries in the application of using the above-mentioned large cylindrical batteries, so it cannot be used after all.
In addition, the outer peripheral surfaces of the plurality of cylindrical batteries connected in series by welding in the battery module as a structural element are all covered with external piping. Therefore, when it is considered that some of the cylindrical batteries are consumed and deteriorated during maintenance, etc., It is necessary to replace the entire battery module, which increases the running cost

Method used

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  • Battery module and its manufacturing method
  • Battery module and its manufacturing method
  • Battery module and its manufacturing method

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Embodiment Construction

[0073] Hereinafter, best embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view showing an appearance image of a battery module 1 according to one embodiment of the present invention. The battery module 1 is constituted as follows: a battery string is arranged in two sections, the upper and lower sections, and the battery string is formed by arranging 5 cylindrical batteries 2 parallel to the battery axis; 3. Both ends of the battery axial direction of the ten cylindrical batteries 2 in total are fixed and held. In addition, in this battery module 1, ten cylindrical batteries 2 are connected in a state in which the outer surfaces other than both ends are exposed to the outside. Compared with the structure, the heat dissipation effect is greatly improved.

[0074] In addition, in this embodiment, the case where a large cylindrical battery 2 such as a nickel metal hydride storage battery having a ...

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Abstract

In a battery module of the invention, a first battery row and a second battery row have the same number of cylindrical batteries (2) arranged side by side, and both ends in the battery axis direction of each of the battery rows are held by holding frames (3). Each holding frame (3) is formed in a rectangular solid where an inner frame (4) and two outer frames (7, 8) are separably connected to each other. In each holding frame (3), semicircular arc-shaped cutout-like holding receiving sections (4a, 7b, 8b) of the same number as the number of the batteries in the battery rows are formed in bothsides of the inner frame (4) and in those sides of the two outer frames (7, 8) which face the inner frame (4), and half sections of the cylindrical batteries (2) are fitted in the holding receiving sections (4a, 7b, 8b). Two adjacent cylindrical batteries (2) are electrically connected via an inter-battery connection plate (9).

Description

technical field [0001] The present invention relates to a battery module configured by arranging and electrically connecting cells required to obtain a desired output voltage, and to a manufacturing method capable of assembling the battery module with high productivity. Background technique [0002] In recent years, the portability and batteryization of electronic equipment such as AV equipment, personal computers, and portable communication equipment have rapidly developed. As the driving power supply of these electrical equipment, nickel-cadmium storage batteries, nickel-metal hydride batteries, and nickel-metal hydride batteries are used due to their high reliability and easy maintenance Storage battery or lithium ion secondary battery, etc. [0003] On the other hand, in a hybrid electric vehicle, a nickel-metal hydride storage battery is used as a power source for a battery-driven electric motor used as a driving source in combination with an internal combustion engine....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/20
CPCY02E60/12Y02E60/10
Inventor 吉原康雄福冈孝博
Owner PANASONIC CORP
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