The present disclosure relates to a lithium-ion battery module including a housing having a base, a battery cell in the housing, and a battery module terminal coupled to the battery cell via an electrical pathway, wherein the battery module terminal provides an electrical output when coupled to an e
The present disclosure relates to a lithium-ion battery module including a housing having a base, a battery cell in the housing, and a battery module terminal coupled to the battery cell via an electrical pathway, wherein the battery module terminal provides an electrical output when coupled to an electrical load, and wherein the electrical pathway is defined by a first portion, a second portion, and an interconnecting portion connecting the first and second portions. The first portion has a plurality of first conductive components coupled to one another within first connection planes using a first conductive material, and the first connection planes are substantially parallel to the base. The second portion has a plurality of second conductive components coupled to one another within second connection planes using a second conductive material, different from the first conductive material, and the second connection planes are crosswise to the first connection planes.
대표청구항▼
1. A lithium-ion battery module, comprising: a housing having a base;a battery cell disposed in the housing in a cell orientation direction, wherein the cell orientation direction is substantially parallel to the base; anda battery module terminal electrically coupled to a battery cell terminal of t
1. A lithium-ion battery module, comprising: a housing having a base;a battery cell disposed in the housing in a cell orientation direction, wherein the cell orientation direction is substantially parallel to the base; anda battery module terminal electrically coupled to a battery cell terminal of the battery cell via an electrical pathway, wherein the battery cell terminal extends from the battery cell in the cell orientation direction, wherein the battery module terminal is configured to provide an electrical output of the battery module when coupled to an electrical load, and wherein the electrical pathway extends from the battery cell terminal to the battery module terminal and is defined by a first portion, a second portion, and an interconnecting portion connecting the first and second portions;wherein the first portion of the electrical pathway comprises a plurality of first conductive components having a first conductive material, the plurality of first conductive components are electrically coupled to one another within first connection planes using a first weld technique, a first conductive component of the plurality of first conductive components is directly coupled to the battery module terminal, and the first connection planes are substantially parallel to the base of the housing; andwherein the second portion of the electrical pathway comprises a plurality of second conductive components having a second conductive material, the plurality of second conductive components are electrically coupled to one another within second connection planes using a second weld technique, different from the first weld technique, a second conductive component of the plurality of second conductive components is directly coupled to the battery cell terminal of the battery cell, and the second connection planes are oriented crosswise relative to the first connection planes and the cell orientation direction. 2. The lithium-ion battery module of claim 1, wherein the first weld technique includes a first set of weld parameters and the second weld technique includes a second set of weld parameters, different from the first set of weld parameters. 3. The lithium-ion battery module of claim 1, wherein the second connection planes are substantially parallel to one another. 4. The lithium-ion battery module of claim 1, wherein the interconnecting portion comprises the first conductive material at a first end and the second conductive material at a second end, and wherein the interconnecting portion electrically couples the plurality of first conductive components to the plurality of second conductive components. 5. The lithium-ion battery module of claim 4, wherein the interconnecting portion comprises a material gradient portion disposed between the first and second ends and having a mixture of the first conductive material and the second conductive material. 6. The lithium-ion battery module of claim 4, wherein the interconnecting portion comprises a third conductive material positioned between the first end and the second end. 7. The lithium-ion battery module of claim 4, wherein the interconnecting portion couples the plurality of first conductive components to the plurality of second conductive components via a third weld technique to a third conductive component of the plurality of first conductive components at the first end and a fourth weld technique to a fourth conductive component of the plurality of second conductive components at the second end. 8. The lithium-ion battery module of claim 7, wherein one or both of the third weld technique and the fourth weld technique include ultrasonic welding or laser welding. 9. The lithium-ion battery module of claim 1, wherein the plurality of first conductive components are physically and electrically coupled to one another using only the first weld technique and the plurality of second conductive components are physically and electrically coupled to one another using only the second weld technique. 10. The lithium-ion battery module of claim 1, wherein the plurality of first conductive components comprises one or more of a terminal bus bar, a relay bus bar, a relay connector, a shunt, and a shunt bridge. 11. The lithium-ion battery module of claim 10, wherein the plurality of second conductive components comprises one or more of a plurality of cell bus bars, a relay, and a PCB. 12. The lithium-ion battery module of claim 1, wherein the first conductive material comprises copper and the second conductive material comprises aluminum. 13. A method for constructing a lithium-ion battery module, comprising: accessing a first side of a housing of the lithium ion battery module, wherein the lithium-ion battery module comprises a battery cell, wherein the battery cell is disposed in the housing in a cell orientation direction, wherein the cell orientation direction is substantially parallel to a base of the housing, and wherein the battery cell comprises a battery cell terminal extending from the battery cell in the cell orientation direction;coupling a plurality of first conductive components to one another via a first plurality of welds on the first side, wherein a first conductive component of the plurality of first conductive components is directly coupled to a battery module terminal of the lithium ion battery module, the first plurality of welds are produced within first connection planes using a first conductive material, and the first connection planes are substantially parallel to the base of the housing;accessing a second side of the housing, crosswise to the first side;coupling a plurality of second conductive components to one another via a second plurality of welds on the second side, wherein a second conductive component of the plurality of second conductive components is directly coupled to the battery cell terminal of the battery cell, the second plurality of welds are produced within second connection planes using a second conductive material, different from the first conductive material, and the second connection planes are oriented crosswise relative to the first connection planes and the cell orientation direction; andcoupling the plurality of first conductive components to the plurality of second conductive components via an interconnecting portion comprising the first conductive material at a first end and the second conductive material at a second end. 14. The method of claim 13, wherein the first plurality of welds are produced using a first set of weld parameters configured to weld two copper components to one another and the second plurality of welds are produced using a second set of weld parameters configured to weld two aluminum components to one another. 15. A lithium-ion battery module, comprising: a housing having a base;a battery cell disposed in the housing and having a cell orientation direction, wherein the cell orientation direction is substantially parallel to the base;a battery module terminal electrically coupled to a battery cell terminal of the battery cell via an electrical pathway, wherein the battery cell terminal extends from the battery cell in the cell orientation direction, wherein the electrical pathway extends from the battery cell terminal of the battery cell to the battery module terminal, and wherein the electrical pathway is produced according to a process, comprising: accessing a first side of the housing;coupling a plurality of first conductive components to one another via a first plurality of welds on the first side, wherein a first conductive component of the plurality of first conductive components is directly coupled to the battery module terminal, the first plurality of welds are produced within first connection planes using a first conductive material, and the first connection planes are substantially parallel to a base of the housing;accessing a second side of the housing, crosswise to the first side;coupling a plurality of second conductive components to one another via a second plurality of welds on the second side, wherein a second conductive component of the plurality of second conductive components is directly coupled to the battery cell terminal of the battery cell, the second plurality of welds are produced within second connection planes using a second conductive material, different from the first conductive material, and the second connection planes are oriented crosswise relative to the first connection planes and the cell orientation direction; andcoupling the plurality of first conductive components to the plurality of second conductive components via an interconnecting portion comprising the first conductive material at a first end and the second conductive material at a second end. 16. The lithium-ion battery module of claim 15, wherein the first conductive material comprises copper and the second conductive material comprises aluminum.
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