Module for electric energy storage assemblies for ageing detection of said assemblies
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-010/50
H01G-011/82
H01M-002/20
H01M-002/10
H01M-010/42
출원번호
US-0599961
(2008-02-25)
등록번호
US-8906531
(2014-12-09)
우선권정보
FR-07 55089 (2007-05-15)
국제출원번호
PCT/EP2008/052231
(2008-02-25)
§371/§102 date
20100119
(20100119)
국제공개번호
WO2008/141845
(2008-11-27)
발명자
/ 주소
Caumont, Olivier
Juventin-Mathes, Anne-Claire
Le Bras, Karine
Depond, Jean-Michel
출원인 / 주소
Blue Soloutions
대리인 / 주소
Blakely Sokoloff Taylor & Zafman
인용정보
피인용 횟수 :
1인용 특허 :
10
초록▼
Module including a casing (10) in which a plurality of electric energy storage assemblies (20) are arranged so that their longitudinal axis are parallel to one another and perpendicular to an upper wall and a lower wall of the casing. Each electric storage assembly has a first face in thermal contac
Module including a casing (10) in which a plurality of electric energy storage assemblies (20) are arranged so that their longitudinal axis are parallel to one another and perpendicular to an upper wall and a lower wall of the casing. Each electric storage assembly has a first face in thermal contact with and electrically insulated from the lower wall of the casing, and a second face opposite the first face. The second face is capped with a cover electrically connected to the energy storage assembly (20). The upper wall of the casing includes a holder for holding the storage assemblies against the lower wall of the casing which also allows swelling of the covers capping the second faces.
대표청구항▼
1. Module comprising a casing in which a plurality of electric energy storage assemblies are arranged, each electric energy storage assembly extending along a longitudinal axis, the electric energy storage assemblies being arranged in the casing so that their longitudinal axes are parallel to one an
1. Module comprising a casing in which a plurality of electric energy storage assemblies are arranged, each electric energy storage assembly extending along a longitudinal axis, the electric energy storage assemblies being arranged in the casing so that their longitudinal axes are parallel to one another and are perpendicular to an upper wall and a lower wall of the casing, each electric energy storage assembly comprising a first face in thermal contact with whilst being electrically insulated from the lower wall of the casing, and a second face opposite the first face, the second face being capped with a cover electrically connected to said electric energy storage assembly, whereinthe upper wall of the casing comprises means for holding the first faces of the electric energy storage assemblies against the lower wall of the casing and which also allow swelling of the covers capping the second faces, the swelling of the covers being due to an increase of the internal pressure of the electric energy storage assemblies caused by the production of gases in the electric energy storage assemblies,wherein the means for holding comprise at least one of a cutout in the upper wall to allow said swelling and a compressible material disposed between the upper wall and a connector provided on the second faces of the electric energy storage assemblies, wherein the compressible material fills the space between the upper wall and the connector, said material being compressed to a nominal value lower than its maximum compression value to allow swelling of the electric energy storage assemblies by a thickness lying between a thickness corresponding to said nominal value of the material and a thickness corresponding to the maximum compression value of said material. 2. Module according to claim 1, wherein the compressible material comprises regions of different compressibility. 3. Module according to claim 1, wherein the compressible material comprises regions of different compressibility facing each cover of each electric energy storage assembly, the region facing the central part of each cover being less compressible that the region facing the circumference of each cover. 4. Module according to claim 1, wherein the compressible material comprises regions of different compressibility in relation to their position facing covers which undergo different temperatures depending on their location in the module. 5. Module according to claim 1, wherein said means to hold the storage assembly in place comprise at least one cut-out on the inner face of the upper wall of the casing opposite the cover, the cut-out extending over the storage assembly and being designed so that at least one portion of the edge of the cut-out is in thermal contact with whilst being electrically insulated from: the storage assembly and/or connection means of at least two storage assemblies. 6. Module according to claim 5, wherein the cut-out is a blind hole of similar cross-section to the cover, the dimensions of the blind hole being smaller than those of the cover of the associated storage assembly. 7. Module according to claim 5, wherein the cut-out is a blind hole of circular cross-section, the diameter of the blind hole being smaller than that of the associated storage assembly. 8. Module according to claim 5, wherein the connection means between two adjacent storage assemblies comprise the covers associated with the two storage assemblies and electrically connected to a terminal strip, each cover being intended to be in electrical contact with one end of the terminal strip. 9. Module according to claim 8, wherein the connection means between two storage assemblies comprise the covers associated with the two storage assemblies and electrically connected to a terminal strip, each cover comprising a connection terminal intended to be in electrical contact with one end of the terminal strip at a borehole passing through the terminal strip. 10. Module according to claim 9, wherein the borehole passing through the terminal strip has high surface roughness to promote electrical contact with the connection terminal. 11. Module according to claim 8, wherein the terminal strip is in copper. 12. Module according to claim 8, wherein terminal strip is in aluminium. 13. Module according to claim 8, wherein the terminal strips comprise tin or nickel plating as surface protection and/or improved electrical contact. 14. Module according to claim 5, wherein the connection means between two adjacent storage assemblies comprise two covers electrically connected by a terminal strip joined by laser transparent welding. 15. Module according to claim 14, wherein welding of the terminal strip is made through preferential thinned regions. 16. Module according to claim 5, wherein the connection means between two adjacent storage assemblies comprise two covers electrically connected via a terminal strip brazed onto the covers. 17. Module according to claim 5, wherein the connection means between two adjacent storage assemblies comprise two covers electrically connected by a terminal strip by diffusion-brazing of the terminal strip onto the covers. 18. Module according to claim 5, wherein the cut-out comprises a layer of elastomer material at least on its edge in thermal contact with, whilst being electrically insulated from: the storage assembly, and/or the connection means of the two storage assemblies. 19. Module according to claim 5, wherein the connection means between two adjacent storage assemblies comprise a longitudinal part whose ends form the respective upper or lower covers of each of the adjacent storage assemblies so as electrically to connect said adjacent storage assemblies. 20. Module according to claim 19, wherein each end of the longitudinal part comprises radial, preferential thinned regions. 21. Module according to claim 19, wherein the preferential thinned regions lie perpendicular two by two and have an angle of 45° with the longitudinal axis of the longitudinal part. 22. Module according to claim 19, wherein the preferential thinned regions lie perpendicular two by two, at least one region of each end extending along the longitudinal axis of the longitudinal part. 23. Module according to claim 1, wherein the module comprises a layer of elastomer material on the inner face of the lower wall of the casing. 24. Module according to claim 1, wherein the casing comprises fins on at least one outer face of the casing. 25. Module according to claim 24, wherein the fins are arranged on the outer face of the wall of the casing in thermal contact with the storage assemblies. 26. Module according to claim 1, wherein the casing is in aluminium. 27. Module according to claim 1, wherein the casing is in a carbon composite material. 28. Module according to claim 1, wherein at least one wall in thermal contact with and electrically insulated from the storage assemblies comprises or is associated with a base in which a cooling device is arranged. 29. Module according to claim 28, wherein the cooling device comprises a circulation circuit of cooling liquid. 30. Module according to claim 1, wherein it further comprises an electronic board for energy management and diagnosis of the storage assemblies. 31. Module according to claim 30, wherein the electronic management board is in thermal contact with whilst being electrically insulated from at least one side wall of the casing. 32. Module according to claim 31, wherein the electronic management board is in contact with the inner face of the side wall of the casing. 33. Module according to claim 31, wherein the management board is in contact with the outer face of the side wall of the casing. 34. Module according to claim 30, wherein the electronic management board comprises a layer of epoxy resin on which a copper printed circuit is bonded. 35. Module according to claim 34, wherein the layer of epoxy resin is in contact with the inner face of the side wall of the casing. 36. Module according to claim 34, wherein the electronic management board comprises an aluminium plate on the epoxy resin layer, the aluminium plate being in contact with the inner face of the other wall of the casing. 37. Module according to claim 30, wherein it comprises as many electronic management boards as the casing comprises side walls, each of said boards being in contact with a respective side wall of the casing. 38. Module according to claim 1, wherein the two walls are in thermal contact with whilst being electrically insulated from the energy storage assemblies. 39. Module according to claim 38, wherein the two walls in thermal contact with the energy storage assemblies are the upper and lower walls of the casing. 40. Module according to claim 1, wherein the covers of the assemblies consist of an electrically conductive material able to undergo deformations, and forming a barrier against the gases generated in the assemblies during their operation. 41. Module according to claim 40, wherein the covers of the assemblies are in aluminium. 42. Module according to claim 41, wherein the covers of the assemblies are in aluminium, whose aluminium content is more than 99.5%. 43. Module according to claim 1, wherein it comprises means to detect swelling of the or of each energy storage assembly. 44. Module according to claim 43, wherein the swelling detection means consist of a pressure sensor arranged inside the shell of the module facing each assembly. 45. Module according to claim 43, wherein at the swelling detection means consist of a deformation sensor located on the covers or on the terminal strips. 46. Module according to claim 43, wherein the swelling detection means consist of a switch giving data on swelling of the energy storage assembly under consideration. 47. Module according to claim 43, wherein the data delivered by the swelling detection means is processed by one or more electronic boards for energy management and diagnosis of the energy storage assemblies. 48. Module according to claim 43, wherein the data delivered by the swelling detection means is transmitted by a connector of the module to external electronic means for energy management and diagnosis of the energy storage assemblies. 49. Module according to claim 1, wherein the compressible material comprises regions of different compressibility. 50. Module according to claim 49, wherein the compressible material comprises regions of different compressibility facing each cover of each energy storage assembly, the region facing the central part of each cover being less compressible than the region facing the circumference of each cover. 51. Module according to claim 49, wherein the compressible material comprises regions of different compressibility in relation to their position facing covers which undergo different temperatures depending on their location in the module.
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