Cell for storing power, comprising at least one male element and one female element equipped with electrical connection interfaces

Patent metadata

Field	Value
Publication number	US-2016359174-A1
Application number	US-201515121578-A
Country	US
Kind code	A1
Filing date	Feb 24, 2015
Priority date	Feb 26, 2014
Publication date	Dec 8, 2016
Grant date	—

Abstract

The invention primarily relates to a cell ( 1 ) for storing power, which is to be integrated in an electrical module for assembling a power storage system, having a first surface ( 1 a; 1 c ) and a second surface ( 1 b; 1 d ), characterised in that the cell ( 1 ) comprises at least one male element ( 5; 5 a, 5 b, 5 c ) on one of the first ( 1 a; 1 c ) and second ( 1 b; 1 d ) surfaces thereof, and at least one female element ( 6; 6 a, 6 b, 6 c ) on the other of the first ( 1 a; 1 c ) and second ( 1 b; 1 d ) surfaces thereof, which elements are shaped such as to be fitted into one another such that the cell ( 1 ) is configured such as to be assembled to another cell ( 1 ) of the same type, in that at least one male element ( 5; 5 a, 5 b, 5 c ) comprises at least one electrical connection interface having positive polarity ( 8; 8 a, 8 b, 8 c ) and in that at least one female element ( 6; 6 a, 6 b, 6 c ) comprises at least one electrical connection interface having negative polarity ( 9; 9 a, 9 b ), or conversely such that the cell ( 1 ) is configured such as to be electrically connected to another cell ( 1 ) of the same type.

First claim

1 . A cell for storing power, configured to be integrated into an electrical module for assembling a power storage system, having a first surface and a second surface, opposite the first surface,
wherein the cell comprises, on one of its first and second surfaces, at least one male element, and on the other of its first and second surfaces, at least one female element, said at least one male element and at least one female element having shapes that allow for their fitting into one another in such a way that the cell is configured to be assembled to another cell of the same type, said at least one male element or said at least one female element of the cell being respectively fitted with at least one female element or at least one male element of the other cell of the same type, wherein at least one male element of said at least one male element and at least one female element comprises at least one electrical connection interface having positive polarity and wherein at least one female element of said at least one male element and at least one female element comprises at least one electrical connection interface having negative polarity, or inversely, in such a way that the cell is configured to be electrically connected to another cell of the same type, and in that the cell comprises an electrical core comprising a negative electrode, a positive electrode and an electrolyte located between the negative electrode and the positive electrode, covered by a packaging configured in such a way as to not cover said at least one electrical connection interface having positive polarity and an electrical connection interface having negative polarity.

2 . The cell according to claim 1 , wherein the cell is an elementary electrochemical cell.

3 . The cell according to claim 1 , wherein said at least one electrical connection interface having positive polarity and said at least one electrical connection interface having negative polarity are respectively formed on a portion with reduced or zero accessibility of said at least one male element and on a portion with reduced or zero accessibility of said at least one female element, or inversely, the portion with reduced or zero accessibility of said at least one male element corresponding to a portion intended to be covered by at least one female element of another cell of the same type during the assembly by fitting of the cell with the other cell of the same type, and the portion with reduced or zero accessibility of said at least one female element corresponding to a portion intended to be covered by at least one male element of another cell of the same type during the assembly by fitting of the cell with the other cell of the same type.

4 . The cell according to claim 1 , wherein said at least one male element extends from one edge to the other of said one of the first and second surfaces of the cell, and wherein said at least one female element extends from one edge to the other of said other of the first and second surfaces of the cell.

5 . The cell as claimed in claim 1 , wherein said at least one male element has a shape of a groove in relief and wherein said at least one female element has a shape of a hollow groove, with the shapes of grooves in relief and with hollows being complementary with one another in order to allow for the assembly of the cell with another cell of the same type.

6 . The cell according to claim 5 , wherein said one of the first and second surfaces of the cell comprises at least one lug, two lugs on either side of said at least one male element, in order to allow for the assembly and the safety connection of said at least one male element with at least one female element of another cell of the same type.

7 . The cell according to claim 1 , wherein said at least one male element and said at least one female element have similar shapes, with the assembly of the cell with another cell of the same type being made possible by an opposite orientation of said at least one male element and of said at least one female element of the cell respectively with respect to at least one female element and at least one male element of the other cell of the same type, during the fitting.

8 . The cell as claimed in claim 1 , wherein said at least one electrical connection interface having positive polarity extends partially over said at least one male element, in the vicinity of an edge of said one of first and second surfaces of the cell, and wherein said at least one electrical connection interface having negative polarity extends partially over said at least one female element, in the vicinity of an edge of said other of the first and second surfaces of the cell, or inversely.

9 . The cell as claimed in claim 1 , wherein said at least one male element extends longitudinally, i.e. along the largest dimension, on said one of first and second surfaces of the cell, and wherein said at least one female element extends longitudinally, i.e. along the largest dimension, over said other of the first and second surfaces of the cell.

10 . The cell according to claim 1 , wherein said at least one male element extends transversally, i.e. along the smallest dimension, over said one of first and second surfaces of the cell, and wherein said at least one female element extends transversally, i.e. along the smallest dimension, over said other of the first and second surfaces of the cell.

11 . The cell as claimed in claim 1 , wherein said at least one male element and/or said at least one female element are, at least partially, formed by the packaging.

12 . The cell as claimed in claim 1 , wherein the electrical core comprises a negative electrode and a positive electrode, and wherein at least one of the negative electrode and of the positive electrode comprises at least one male electrode element and/or at least one female electrode element of a shape respectively similar to that of said at least one male element of the cell and/or of said at least one female element of the cell, and in that the packaging covers said at least one male electrode element and/or said at least one female electrode element, by having a shape that hugs that of said at least one male electrode element and/or that of said at least one female electrode element, in such a way as to respectively form said at least one male element of the cell and/or said at least one female element of the cell.

13 . The cell as claimed in claim 1 , wherein said one of the first and second surfaces of the cell comprises at least one male element and at least one female element, and wherein said other of the first and second surfaces of the cell comprises also at least one male element and at least one female element.

14 . The cell as claimed in claim 1 , wherein it comprises means for maintaining in position of the cell with another cell of the same type.

15 . The cell according to claim 14 , wherein the means for maintaining in position comprise orifices formed in said at least one male element and at least one female element, with the orifices of said at least one male element and the orifices of said at least one female element of the cell being respectively configured to be orifices of at least one female element and orifices of at least one male element of another cell of the same type, during the assembly of the cell with at least one other cell of the same type, and wherein the means for maintaining in position further comprise at least one rod for maintaining in position able to be inserted into the orifices of said at least one male element and at least one female element of the cell.

16 . The cell accordi

Assignees

• Commissariat L Energie Atomique Et Aux Energies Alternatives
• Commissariat Energie Atomique

Inventors

• Berthe De Pommery Yves
• Azais Philippe
• Picard Lionel
• Turin Guillaume

Classifications

• H01M10/0431

  Cells with wound or folded electrodes (H01M10/045 takes precedence) · CPC title

• H01M6/42 Primary

  Grouping of primary cells into batteries (H01M6/40 takes precedence) · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M50/517

  by fixing means, e.g. screws, rivets or bolts · CPC title

• H01M50/262

  with fastening means, e.g. locks · CPC title