Energy storage module comprising a plurality of energy storage assemblies

Patent metadata

Field	Value
Publication number	US-2016172121-A1
Application number	US-201414908063-A
Country	US
Kind code	A1
Filing date	Jul 28, 2014
Priority date	Jul 30, 2013
Publication date	Jun 16, 2016
Grant date	—

Abstract

The subject of the invention is an energy storage module ( 10 ) comprising a plurality of energy storage assemblies ( 12 ) electrically connected to one another, the module comprising an external casing ( 40 ) in which are arranged the storage assemblies ( 12 ) and at least one heat exchanger ( 24 ), the module being characterized in that:—the energy storage assemblies ( 12 ) are arranged side by side on at least two distinct levels (N 1 , N 2 ), the or at least one of the heat exchangers ( 24 ) being positioned between two adjacent levels so as to be in thermal contact with at least one storage assembly of each of the two adjacent levels on two opposite respective contact faces ( 26 A, 26 B) of the exchanger,—said or at least one of said exchangers ( 24 ) is fixed to the casing ( 40 ) of the module at least at a securing wall ( 28 ) that is distinct from the contact faces ( 26 A, 26 B), the securing walls of the exchanger and of the casing being configured in such a way that the module has a space between the corresponding securing walls ( 28; 44 ) of the exchanger and of the casing, at least at a location distinct from a securing site ( 70 ).

First claim

1 . An energy storage module ( 10 ) comprising a plurality of energy storage assemblies ( 12 ) electrically connected to one another, the module comprising an external casing ( 40 ) in which are arranged the storage assemblies ( 12 ) and at least one heat exchanger ( 24 ), the module being characterised in that:
the energy storage assemblies ( 12 ) are disposed side by side on at least two distinct levels (N 1 , N 2 ), the or at least one of the heat exchangers ( 24 ) being positioned between two adjacent levels so as to be in thermal contact with at least one storage assembly of each of the two adjacent levels on two opposite respective contact faces ( 26 A, 26 B) of the exchanger, said or at least one of said exchangers ( 24 ) is fixed to the casing ( 40 ) of the module at least at a securing wall ( 28 ) that is distinct from the contact faces ( 26 A, 26 B), the securing walls of the exchanger and of the casing being configured in such a way that the module has a space between the corresponding securing walls ( 28 ; 44 ) of the exchanger and of the casing, at least at a location distinct from a securing site ( 70 ).

2 . The module according to the preceding claim, wherein the exchanger ( 24 ) is configured in such a way that the or at least one, especially each, of the securing sites ( 70 ) of the exchanger is protruding from the remainder of the securing wall ( 28 ).

3 . The module according to any of the preceding claims, wherein the heat exchanger ( 24 ) comprises at least one duct ( 30 ) into which a fluid is intended to travel.

4 . The module according to the preceding claim, wherein the heat exchanger ( 24 ) comprises a fluid inlet ( 32 ) and outlet ( 34 ), the casing comprising at least one hole ( 52 ) to enable the passage of fluid from the outside.

5 . The module according to the preceding claim, wherein the exchanger comprises protruding connectors ( 32 , 34 ) forming a fluid inlet and outlet, these connectors being configured to pass through the corresponding hole ( 52 ) of the casing ( 40 ), a seal ( 54 ) being interposed between the casing and the protruding connectors.

6 . The module according to any of the preceding claims, wherein the heat exchanger ( 24 ) is intended to be in thermal contact with all the storage assemblies ( 12 ) of both adjacent levels (N 1 , N 2 ).

7 . The module according to any of the preceding claims, wherein the heat exchanger ( 24 ) comprises two opposite contact faces ( 26 A, 26 B) and at least one side wall ( 28 ) extending between the opposite contact faces, substantially perpendicular to the contact faces, the securing sites ( 70 ) being distributed on the or at least one of the side walls in such a way that the latter form the securing wall(s).

8 . The module according to any of the preceding claims, wherein the heat exchanger ( 24 ) is secured to the casing ( 40 ) of the module by screwing, for that purpose, the securing sites ( 70 ) of the exchanger ( 24 ) comprising securing holes ( 72 ), intended to be positioned facing the securing holes ( 74 ) of the casing.

9 . The module according to any of the preceding claims, wherein the space situated between the securing walls ( 28 ; 44 ) is sized in such a way that the distance between the corresponding securing walls of the casing and of the exchanger is lower than 3 mm.

10 . The module according to the preceding claim, wherein the surface of the portions ( 70 ) of the securing wall(s) ( 28 ) of the exchanger in contact with the casing ( 40 ) is lower than 20%, especially 10%, of the whole surface of the securing wall(s) ( 28 ).

11 . The module according to any of the preceding claims, wherein the energy storage assemblies ( 12 ) substantially extend along a so-called longitudinal direction, and are superimposed with one of the contact faces ( 26 A, 26 B) of the exchanger at one of their end faces along the longitudinal direction.

12 . The module according to the preceding claim, wherein the module comprises at least one strip ( 14 ) superimposed on the end faces of two adjacent storage assemblies ( 12 ) in order to electrically connect said assemblies.

13 . The module according to any of the preceding claims, wherein at least one electrical isolation member, such as a mat ( 20 ) made of elastomer, is interposed between the assemblies ( 12 ) and the exchanger ( 24 ).

14 . The module according to any of the preceding claims, wherein the energy storage assemblies ( 12 ) are supercapacitors.

15 . A method for assembling an energy storage module ( 10 ) comprising a plurality of storage assemblies ( 12 ) and at least one heat exchanger ( 24 ), comprising the following steps:
forming first and second groups of energy storage assemblies arranged side by side, positioning at least one heat exchanger ( 24 ), comprising at least two opposite contact faces ( 26 A, 26 B), between both groups of assemblies, in such a way that each contact face is respectively in thermal contact with at least one storage assembly ( 12 ) of one of the groups, arranging an external casing ( 40 ) in such a way that it surrounds the groups of assemblies and the heat exchanger and securing the exchanger to at least one wall ( 44 ) of the casing at least at one of its walls ( 28 ) that is distinct from the contact faces ( 26 A, 26 B), the exchanger and the casing being configured in such a way that the module has a space between the corresponding securing walls ( 28 ; 44 ) of the exchanger and of the casing, at least at a location distinct from a securing site ( 70 ).

Assignees

• Blue Solutions

Inventors

• Juventin Anne-Claire
• Le Gall Laurent

Classifications

• H01G11/18

  against thermal overloads, e.g. heating, cooling or ventilating · CPC title

• H01M10/613

  Cooling or keeping cold · CPC title

• H01G2/02

  Mountings · CPC title

• H01G9/0003

  Protection against electric or thermal overload; cooling arrangements; means for avoiding the formation of cathode films (H01G9/12 takes precedence) · CPC title

• H01G11/10 Primary

  Multiple hybrid or EDL capacitors, e.g. arrays or modules (housings, cases, encapsulations or mountings thereof H01G11/78) · CPC title