Battery module, and electric vehicle and power storage device provided with same
A technology for battery components and electric vehicles, which is applied in the direction of battery/battery traction, electric power devices, battery pack components, etc., and can solve the problem of reducing the height of battery components, increasing the volume of battery components, and inability to efficiently dissipate heat from heat-dissipating components and other issues to achieve the effect of efficient heat dissipation and high safety
Pending Publication Date: 2022-05-06
SANYO ELECTRIC CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0009] For a battery assembly in which multiple components such as gas passages, circuit boards, and leads are arranged on the terminal surface of the battery cell, it is difficult to reduce the height and miniaturization of the battery assembly only by improving the arrangement of the components, and the circuit board becomes substantially enlarged. The volume of the battery pack, especially the disadvantage of increasing the height
On the other hand, if the circuit board is thinned and miniaturized, the disadvantage of not being able to efficiently dissipate heat from heat-generating components mounted on the circuit board becomes significant.
Method used
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Embodiment approach 1
[0062] The battery packs shown in the following examples are mainly suitable for electric vehicles such as hybrid vehicles that run on both an engine and an electric motor, plug-in hybrid cars, electric vehicles that run only on an electric motor, and electric motorcycles that run on an electric motor. The vehicle's power supply. However, the battery pack of the present invention is also suitable as a power source for power storage devices for applications requiring a large output other than electric vehicles.
[0063] Figure 1 to Figure 6 The illustrated battery pack includes a battery stack 2 in which a plurality of battery cells 1 are stacked along the thickness direction, a pair of end plates 3 arranged at both ends of the battery stack 2 in the stacking direction of the battery cells 1 , Tightening bars 4 connected to end plates 3 at both ends of the battery stack 2 and electronic circuit blocks 6 connected to the battery cells 1 of the battery stack 2 via lead wires 19...
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The purpose of the present invention is to achieve high safety by protecting an electronic circuit block provided with a voltage detection circuit from high-temperature and high-voltage exhaust gas. A pair of end plates (3) disposed at both ends of the battery laminate in the lamination direction; a tie-down strip (4) that connects the pair of end plates (3) and fixes the battery cells; and an electronic circuit block (6) in which a voltage detection circuit that detects the voltage of the battery cells is mounted. An electronic circuit block (6) is disposed on the surface of the end plate (3).
Description
technical field [0001] The present invention relates to a battery assembly formed by connecting a plurality of battery cells, an electric vehicle and an electric storage device equipped with the battery assembly, and particularly relates to a battery pack mounted on an electric vehicle such as a hybrid vehicle, a fuel cell vehicle, an electric vehicle, or an electric motorcycle. Battery packs for electric motors used to run vehicles, battery packs for supplying power to large current power sources used in household and industrial power storage applications, and electric vehicles and power storage devices equipped with such battery packs. [0002] In this specification, the term "battery module" refers to any battery module including a voltage detection circuit that detects the voltage of the battery cells by arranging end plates on both end faces of a plurality of battery cells and connecting the pair of end plates with a tie bar. , For example, it has a broad meaning includin...
Claims
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IPC IPC(8): H01M50/244H01M50/249H01M50/264H01M50/569H01M10/42B60L50/64H01M50/224H01M50/204
CPCH01M50/244H01M50/249H01M50/264H01M50/569H01M10/425B60L50/64H01M50/224H01M50/204B60K1/04H01M50/209H01M10/482H01M50/284H01M50/358H01M2010/4271H01M2010/4278H01M50/262H01M2220/20B60L58/12H01M50/30B60L2240/547H01M10/48
Inventor 矢野准也国光智德中山正人滨田泰辅
Owner SANYO ELECTRIC CO LTD