US 9,806,307 B2Granted

Battery module

AssigneeNingde Amperex Technology Limited

InventorsYulian Zheng, Zhijun Guo, Peng Wang, Pinghua Deng

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Abstract

The present disclosure provides a battery module, which comprises: a plurality of mono-batteries arranged in a manner that side surfaces are adjacent to each other; an insulative casing receiving the plurality of mono-batteries; a supporting frame fixed in the insulative casing, provided with a potting hole, and holding the plurality of mono-batteries therein; and a separating body which is formed by injecting via the potting holes and curing and is potted among the adjacent mono-batteries, so as to allow the plurality of mono-batteries to be insulated and isolated from each other. When one mono-battery is involved in a safety problem and leaks, other mono-batteries are not affected due to the isolation of the separating body potted among the adjacent mono-batteries, so as to improve the safety performance of the battery module. In addition, the battery module has the advantages of simple structure, small size, and low cost.

Claims20

Dependent claims

A battery module, comprising:

a plurality of mono-batteries arranged in a manner that side surfaces are adjacent to each other;
an insulative casing receiving the plurality of mono-batteries;
a supporting frame fixed in the insulative casing, provided with a potting hole, and holding the plurality of mono-batteries therein;
and
a separating body which is formed by injecting via the potting holes and curing and is potted among the adjacent mono-batteries, so as to allow the plurality of mono-batteries to be insulated and isolated from each other;
the insulative casing further comprising:
a side plate surrounding three sides of an assembly of the plurality of mono-batteries;
an upper cover connected to the side plate in a sealing way above the side plate;
a lower cover connected to the side plate in a sealing way below the side plate;
and
a side cover connected to the side plate, the upper cover and the lower cover in a sealing way on the other side of the assembly of the plurality of mono-batteries;
wherein
the side plate of the insulative casing is provided with an upper latching groove and a lower latching groove;
the supporting frame comprises:
an upper supporting frame portion engaged with the upper latching groove of the side plate;
and
a lower supporting frame portion spaced apart from the upper supporting frame portion and located below the upper supporting frame portion and engaged with the lower latching groove of the side plate.

14 more elements

A battery module, comprising:

a plurality of mono-batteries arranged in a manner that side surfaces are adjacent to each other;
an insulative casing receiving the plurality of mono-batteries;
a supporting frame fixed in the insulative casing, provided with a potting hole, and holding the plurality of mono-batteries therein;
and
a separating body which is formed by injecting via the potting holes and curing and is potted among the adjacent mono-batteries, so as to allow the plurality of mono-batteries to be insulated and isolated from each other;
wherein
the plurality of mono-batteries each have a first electrode tab and a second electrode tab which are opposite in electrical polarity;
the battery module further comprises:
a connecting piece electrically connecting the first electrode tabs and the second electrode tabs of the plurality of mono-batteries, and provided with a first master output end and a second master output end which are opposite in electrical polarity.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/630,450Filed 24 Feb 2015
Priority: CN 2014 1 034096217 Jul 2014
Published: US 2016/0020446 A121 Jan 2016
Granted: 31 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H01M 10/6556
Solid structures for heat exchange or heat conduction: solid parts with flow channel passages or pipes for heat exchange
H01M 50/211
Characterised by their shape: adapted for pouch cells
H01M 50/24
Characterised by physical properties of casings or racks, e.g. dimensions: adapted for protecting batteries from their environment, e.g. from…
H01M 50/249
Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders:…