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Battery module

A battery module and battery technology, applied in battery pack components, circuits, electrical components, etc., can solve the problem of long exhaust gas flow path and achieve the effect of improving safety

Active Publication Date: 2021-04-23
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Patent Document 1 discloses a structure in which a plurality of flat plates are arranged inside the exhaust path for discharging high-pressure, high-temperature exhaust gas from the battery to the outside of the casing to change the flow direction of the exhaust gas into a zigzag shape. , so that the flow path of the exhaust gas is longer

Method used

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Embodiment Construction

[0019] Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings. The embodiments are not intended to limit the invention but are examples, and all the features and combinations described in the embodiments are not necessarily the essential features and combinations of the invention. The same or equivalent components, members, and processes shown in the drawings are given the same reference numerals, and redundant descriptions are appropriately omitted. In addition, the scale and shape of each part shown in each drawing are set appropriately for convenience of explanation, and unless otherwise mentioned, it is not limitedly interpreted. In addition, when terms such as "first" and "second" are used in the specification or claims, unless otherwise specified, the terms do not indicate any order or degree of importance, but are used to distinguish a certain structure and other structures. In addition, in each drawing, some...

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Abstract

In order to increase the degree of safety of a battery module, a battery module is provided with: a battery stack (2) which is provided with a plurality of stacked batteries (4), each of which being provided with a valve part (18) for releasing gas generated therein, and an output terminal (16); a plurality of busbars (28) which electrically connect the output terminals (16) of the plurality of batteries (4) to each other, divide the plurality of batteries (4) into a plurality of battery units (36) which are each formed from a least two batteries (4), connect the output terminals (16) of the batteries (4) in each of the battery units (36) to each other in parallel, and connect the battery units (36) to each other in series; and metal filters (34) which are disposed between the valve parts (18) and the output terminals (16) in a first direction in which the valve parts (18) and the output terminals (16) are arranged, and which are disposed in the extension range of the batteries (4) belonging to a first terminal group to which a first busbar among the busbars (28) is fixed, in the stacking direction (X) of the batteries (4).

Description

technical field [0001] The present invention relates to battery modules. Background technique [0002] For example, a battery module in which a plurality of batteries are electrically connected is known as a power supply requiring a high output voltage for vehicles or the like. As such a battery module, there is known a battery module having a structure in which a plurality of batteries are connected in parallel by bus bars to form a plurality of battery cells, and the battery cells are connected in series by the same bus bars. Each battery constituting the battery module is provided with a valve portion that opens in response to an increase in internal pressure. When gas is generated by a chemical reaction inside the battery and the internal pressure of the battery rises, the high-temperature and high-pressure gas is discharged from the valve. Usually, an exhaust pipe is connected to each valve part, and the high-temperature and high-pressure gas discharged from the insid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/204H01M50/507H01M50/509H01M50/30H01M50/209
CPCY02E60/10H01M50/209H01M50/35H01M50/367H01M50/507H01M50/509H01M50/383H01M50/30
Inventor 岩月信雄马锐道上翼川崎永士
Owner SANYO ELECTRIC CO LTD
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