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Power source

A technology of power supply device and electrode group, which is applied in the direction of circuits, electric vehicles, electrical components, etc., can solve the problems of single battery performance degradation, heat difficulty, heat transfer, etc., and achieve the effect of suppressing temperature rise

Inactive Publication Date: 2011-10-12
PANASONIC INTPROP MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] However, when the electrode group is covered with an insulator, the electrode group and the molded body are not in direct contact, and heat is difficult to transfer from the electrode group to the molded body.
Therefore, in the power supply device of Patent Document 4, even if the electrode group and the molded body are brought into direct contact, heat cannot be sufficiently transferred from the electrode group to the molded body, and problems such as performance degradation of the single cell and thermal runaway occur.

Method used

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Experimental program
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Effect test

Embodiment approach 1

[0128] Figure 4 It is a perspective view of the power supply device 100 according to the first embodiment. Figure 5 It is a front view of the power supply device 100 of Embodiment 1. .

[0129] Such as Figure 4 and 5 As shown, the power supply device 100 has a molded body 110 and a unit 120 . Furthermore, the power supply device 100 has a positive electrode sealing plate 130 and a negative electrode sealing plate 140 (refer to Figure 10 ).

[0130] The molded body 110 is, for example, a conductive member made of aluminum. The molded body 110 has a plurality of receiving holes 111 . The receiving hole 111 penetrates the molded body 110 . The storage hole 111 accommodates the unit 120 .

[0131] The size of the molded body 110 is not particularly limited, for example, the length L is 140 to 180 mm, the width W is 50 to 90 mm, and the height H is 40 to 80 mm (refer to Figure 4 ). In addition, the diameter Φ of the storage hole is 10 to 30 mm (refer to Figure 5 )...

Embodiment approach 2

[0155] In Embodiment 1, a mode in which each positive electrode sealing plate is independent is described. In Embodiment 2, the mode in which the power supply device has one positive electrode sealing plate that seals all the storage holes will be described.

[0156] Figure 13 It is an exploded perspective view of the power supply device 200 according to the second embodiment. The power supply unit 200 is connected to the positive electrode sealing plate, and Figure 4 The power supply device 100 of Embodiment 1 shown is the same. The same reference numerals are assigned to the same components as those of the power supply device 100 according to Embodiment 1, and description thereof will be omitted.

[0157] Such as Figure 13 As shown, the power supply device 200 has a positive sealing plate 240 . In this way, in the present embodiment, since the positive electrode sealing plate 240 is not individually divided for each cell 120 , the number of components is small, and t...

Embodiment approach 3

[0159] In Embodiment 1 and Embodiment 2, the embodiment in which the storage hole penetrates the molded body has been described. In Embodiment 3, the mode in which the storage hole does not penetrate the molded body will be described.

[0160] Figure 14 It is a sectional view of the power supply device 300 according to the third embodiment. The power supply device 300 is different from the shape of the receiving hole 211 except that Figure 10 The power supply device 100 of Embodiment 1 shown is the same. The same reference numerals are assigned to the same components as those of the power supply device 100 according to Embodiment 1, and description thereof will be omitted.

[0161] Such as Figure 14 As shown, the power supply device 300 has a molded body 210 and a sealing plate 230 . The molded body 210 has a storage hole 211 . The receiving hole 211 does not penetrate the molded body 210 . Such a molded body 210 can be molded by press molding, for example.

[0162]...

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Abstract

The disclosed power source is configured by winding a laminate which comprises: a molded body having two or more independent housing holes; a cathode and anode having a collector and a mixture layer disposed on said collector; and a separator sandwiched between said cathode and anode. Said power source has an electrode group housed in each of said housing holes and an electrolyte housed in each of said housing holes. Said electrolyte and either said cathode or said anode of said electrode group contact said molded body.

Description

technical field [0001] The present invention relates to a power supply device and a manufacturing method thereof. Background technique [0002] In order to drive a running motor of a hybrid vehicle or the like, a large current is required. For example, a hybrid vehicle requires a current of 100 A or more to drive a driving motor when starting or accelerating. As a power supply device for supplying such a large current, a power supply device including a secondary battery with high energy density is known. [0003] As such a power supply device, there is known a power supply device in which a plurality of single cells such as nickel-metal hydride batteries, nickel-cadmium batteries, and lithium-ion batteries are connected (for example, refer to Patent Documents 1 and 2). [0004] The power supply devices of Patent Documents 1 and 2 have a plurality of connected cells, and a battery holder for fixing the cells. The material of the battery holder is, for example, plastic. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/02H01M10/04H01M10/50H01M10/60H01M10/613H01M10/625H01M10/627H01M10/643H01M10/647H01M10/653H01M10/6551H01M50/112H01M50/119H01M50/528
CPCH01M10/0525H01M10/625H01M10/6551H01M10/6557H01M10/643H01M10/655H01M10/613Y02E60/10H01M50/112Y02P70/50H01M50/119Y02T10/70
Inventor 金田善夫松本敏宏
Owner PANASONIC INTPROP MANAGEMENT CO LTD
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