Battery module
Assignee3M Innovative Properties Company
InventorsHarald Stuetz, Bernhard Brunnsteiner, Daniele Suzzi
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to battery modules for a propulsion battery system of an electrical or hybrid-electrical vehicle, in particular to busbars having surfaces or a mesh of wires for contacting a cooling fluid to provide a larger contact area between the busbar and the cooling liquid. The present disclosure also relates to a battery system having such battery modules and to an electrical or hybrid-electrical vehicle having such a battery system.
Claims15
A battery module (100, 101) for a propulsion battery system (10) of an electrical or hybrid-electrical vehicle, comprising
- a. a plurality of battery cells (110, 111, 112, 113, 120, 121, 122, 123), each battery cell (110, 111, 112, 113, 120, 121, 122, 123), comprising an anode, a cathode, an electrolyte and electrical terminals (116, 117, 118, 119),
- b. a busbar (130, 131, 132) for electrically and mechanically connecting two terminals (116, 117, 118, 119) of two different battery cells (110, 111, 112, 113, 120, 121, 122, 123), of the plurality of battery cells (110, 111, 112, 113, 120, 121, 122, 123), with each other, the busbar (130, 131, 132) comprising
- i. a terminal contact portion (130a, 130b, 130a′, 130b′, 131a, 131b, 132a, 132b) for connecting the busbar (130, 131, 132) to one of the two terminals (116, 117, 118, 119), the terminal contact portion (130a, 130b, 130a′, 130b′, 131a, 131b, 132a, 132b) comprising connection means for connecting the busbar (130, 131, 132) to the terminal (116, 117, 118, 119), and
- ii. a major surface (131c, 132c) for contacting a cooling fluid, wherein the major surface (131c, 132c) exhibits a plurality of recesses (160) or a plurality of protrusions (150), to provide a larger contact area between the busbar (130a, 130b, 130a′, 130b′, 131a, 131b, 132a, 132b) and the cooling fluid,
- wherein at least a part of one of the recesses (160) or protrusions (150) is arranged within the terminal contact portion (130a, 130b, 130a′, 130b′, 131a, 131b, 132a, 132b).
A battery module (100, 101) for a propulsion battery system (10) of an electrical or hybrid-electrical vehicle, comprising
- a. a plurality of battery cells (110, 111, 112, 113, 120, 121, 122, 123), each battery cell (110, 111, 112, 113, 120, 121, 122, 123) comprising an anode, a cathode, an electrolyte and electrical terminals (116, 117, 118, 119), and
- b. a busbar (133, 134) for electrically and mechanically connecting two terminals (116, 117, 118, 119) of two different battery cells (110, 111, 112, 113, 120, 121, 122, 123) of the plurality of battery cells (110, 111, 112, 113, 120, 121, 122, 123) with each other, the busbar (133, 134) comprising
- i. a terminal contact portion (133a, 133b, 134a, 134b) for connecting the busbar (133, 134) to one of the two terminals (116, 117, 118, 119), the terminal contact portion (133a, 133b, 134a, 134b) comprising connection means for connecting the busbar (133, 134) to the terminal (116, 117, 118, 119), and
- ii. a mesh (200, 200′) of wires (202, 202′) for contacting a cooling fluid.
A battery module (100, 101) for a propulsion battery system (10) of an electrical or hybrid-electrical vehicle, comprising
- a. a plurality of battery cells (110, 111, 112, 113, 120, 121, 122, 123), each battery cell (110, 111, 112, 113, 120, 121, 122, 123) comprising an anode, a cathode, an electrolyte and electrical terminals (116, 117, 118, 119), and
- b. a busbar (135, 136, 137, 138, 139, 140) for electrically and mechanically connecting two terminals of two different battery cells (110, 111, 112, 113, 120, 121, 122, 123) of the plurality of battery cells (110, 111, 112, 113, 120, 121, 122, 123) with each other, the busbar (135, 136, 137, 138, 139, 140) comprising
- i. a terminal contact portion (135a, 135b, 136a, 136b, 137a, 137b, 138a, 138b, 139a, 139b, 140a, 140b) for connecting the busbar (135, 136, 137, 138, 139, 140) to one of the two terminals (116, 117, 118, 119), the terminal contact portion (135a, 135b, 136a, 136b, 137a, 137b, 138a, 138b, 139a, 139b, 140a, 140b) comprising connection means for connecting the busbar (135, 136, 137, 138, 139, 140) to the terminal, and
- ii. at least two channels (210, 211, 212, 213, 214, 215) extending from a surface of the busbar (135, 136, 137, 138, 139, 140) into the busbar (135, 136, 137, 138, 139, 140), thereby forming a passageway for a cooling fluid.
Dependencies are inferred from the claim text.