# US 12,009,546 B2 · Battery module and battery pack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,546 B2 - Document ID: US12009546B2 - Status: Granted - Kind: B2 - Application number: 17/125,436 - Filed: 2020-12-17 - Published: 2021-04-08 - Granted: 2024-06-11 - Earliest claimed: 2018-12-30 - Assignees: Contemporary Amperex Technology Co., Limited - Applicants: Contemporary Amperex Technology Co., Limited - Inventors: Xingdi Chen; Kaijie You; Yu Tang; Yuepan Hou; Ziyuan Li; Jun Ma - Web page: https://patentgrep.com/patent/US12009546B2 ## CPC - H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - H01M 50/296: characterised by terminals of battery packs (terminals of batteries H01M50/543) - H01M 50/50: Current conducting connections for cells or batteries - H01M 50/536: characterised by the method of fixing the leads to the electrodes, e.g. by welding - H01M 50/54: Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges - H01M 50/55: on the same side of the cell - H01M 50/557: Plate-shaped terminals - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The present application relates to a battery module and a battery pack, the battery module including a battery cell arrangement structure, bus bars and a fixing plate, where the battery cell arrangement structure includes a plurality of battery cells; the plurality of battery cells are electrically connected by means of a plurality of the bus bars to form a first output electrode of the battery module and a second output electrode of the battery module, and the first output electrode of the battery module and the second output electrode of the battery module are arranged at a same end of the battery module along a horizontal direction; the fixing plate is provided with an insulating portion, and at least a part of the insulating portion is located between the first output electrode of the battery module and the second output electrode of the battery module. ## Claims ### Claim 1 A battery module, comprising: a battery cell arrangement structure, wherein the battery cell arrangement structure comprises a first battery cell arrangement structure and a second battery cell arrangement structure, the first battery cell arrangement structure and the second battery cell arrangement structure both comprise a plurality of battery cells arranged along a horizontal direction, and the first battery cell arrangement structure and the second battery cell arrangement structure are arranged along a vertical direction; a plurality of bus bars connected to the plurality of battery cells, wherein the plurality of battery cells are electrically connected by means of the plurality of bus bars to form a first output electrode of the battery module and a second output electrode of the battery module, and the first output electrode of the battery module and the second output electrode of the battery module are arranged at a same end of the battery module along the horizontal direction; and a fixing plate, wherein the fixing plate is located on a side of the battery cell arrangement structure along the horizontal direction, the fixing plate is provided with an insulating portion, the insulating portion comprises a protrusion, the protrusion is arranged on a surface of the fixing plate facing away from the battery cell arrangement structure, the protrusion protrudes in a direction away from the battery cell arrangement structure, and the protrusion is located between the first output electrode of the battery module and the second output electrode of the battery module to separate the first output electrode of the battery module from the second output electrode of the battery module; wherein a surface with the largest area of each the battery cell in the first battery cell arrangement structure is disposed to a surface with the largest area of each the battery cell in the corresponding second battery cell arrangement structure along the vertical direction, the fixing plate is arranged on a side of the first battery cell arrangement structure and a side of the second battery cell arrangement structure, electrode terminals of the first battery cell arrangement structure and electrode terminals of the second battery cell arrangement structure are arranged on a side of the battery module along a width direction, and are arranged on the side of the first battery cell arrangement structure and the side of the second battery cell arrangement structure. ### Claim 2 (depends on 1) The battery module according to claim 1, wherein the surface of the fixing plate facing away from the battery cell arrangement structure is provided with a recess, at least a portion of the first output electrode of the battery module and at least a portion of the second output electrode of the battery module are accommodated in the recess, and the protrusion is arranged at a bottom wall of the recess and protrudes in the direction away from the battery cell arrangement structure. ### Claim 3 (depends on 1) The battery module according to claim 1, wherein the first output electrode of the battery module comprises a first output body electrically connected to an electrode terminal of one of the battery cells and a first bended portion connected to the first output body, and the first bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the first output body and the first bended portion; the second output electrode of the battery module comprises a second output body electrically connected to an electrode terminal of another one of the battery cells and a second bended portion connected to the second output body, and the second bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the second output body and the second bended portion; and at least a part of the insulating portion is located between the first bended portion and the second bended portion. ### Claim 4 (depends on 3) The battery module according to claim 3, wherein the first bended portion is provided with a first through hole, the battery module further comprises a bolt for the first output electrode and a nut for the first output electrode, and the bolt for the first output electrode is fixed to the nut for the first output electrode through the first through hole; and the second bended portion is provided with a second through hole, the battery module further comprises a bolt for the second output electrode and a nut for the second output electrode, and the bolt for the second output electrode is fixed to the nut for the second output electrode through the second through hole. ### Claim 5 (depends on 4) The battery module according to claim 4, wherein a material of the fixing plate is resin, and the nut for the first output electrode and the nut for the second output electrode are fixed to the fixing plate by way of integral injection molding. ### Claim 6 (depends on 3) The battery module according to claim 3, wherein the insulating portion protrudes from the first output body and the second output body, such that at least a part of the insulating portion is located between the first output body and the second output body. ### Claim 7 (depends on 1) The battery module according to claim 1, wherein the battery cell comprises an electrode assembly and a battery housing, the electrode assembly is accommodated in the battery housing, and the electrode assembly comprises a first electrode sheet, a second electrode sheet and a membrane arranged between the first electrode sheet and the second electrode sheet; and the electrode assembly is of a coiled structure and is flat, an outer surface of the electrode assembly comprises two flat surfaces, and the two flat surfaces face each other along the vertical direction; or the electrode assembly is of a laminated structure, and the first electrode sheet, the membrane and the second electrode sheet are laminated in the vertical direction. ### Claim 8 (depends on 1) The battery module according to claim 1, wherein electrode terminals of the plurality of battery cells of the first battery cell arrangement structure and electrode terminals of the plurality of battery cells of the second battery cell arrangement structure are all arranged on a same side of the battery module. ### Claim 9 A battery pack, comprising: a case, and a plurality of battery modules, each of the battery modules comprising: a battery cell arrangement structure, wherein the battery cell arrangement structure comprises a first battery cell arrangement structure and a second battery cell arrangement structure, the first battery cell arrangement structure and the second battery cell arrangement structure both comprise a plurality of battery cells arranged along a horizontal direction, and the first battery cell arrangement structure and the second battery cell arrangement structure are arranged along a vertical direction; a plurality of bus bars connected to the plurality of battery cells, wherein the plurality of battery cells are electrically connected by means of the plurality of bus bars to form a first output electrode of the battery module and a second output electrode of the battery module, and the first output electrode of the battery module and the second output electrode of the battery module are arranged at a same end of the battery module along the horizontal direction; and a fixing plate, wherein the fixing plate is located on a side of the battery cell arrangement structure along the horizontal direction, the fixing plate is provided with an insulating portion, the insulating portion comprises a protrusion, the protrusion is arranged on a surface of the fixing plate facing away from the battery cell arrangement structure, the protrusion protrudes in a direction away from the battery cell arrangement structure, and the protrusion is located between the first output electrode of the battery module and the second output electrode of the battery module to separate the first output electrode of the battery module from the second output electrode of the battery module; wherein a surface with the largest area of each the battery cell in the first battery cell arrangement structure is disposed to a surface with the largest area of each the battery cell in the corresponding second battery cell arrangement structure along the vertical direction, the fixing plate is arranged on a side of the first battery cell arrangement structure and a side of the second battery cell arrangement structure, electrode terminals of the first battery cell arrangement structure and electrode terminals of the second battery cell arrangement structure are arranged on a side of the battery module along a width direction, and are arranged on the side of the first battery cell arrangement structure and the side of the second battery cell arrangement structure. ### Claim 10 (depends on 9) The battery pack according to claim 9, wherein the surface of the fixing plate facing away from the battery cell arrangement structure is provided with a recess, at least a portion of the first output electrode of the battery module and at least a portion of the second output electrode of the battery module are accommodated in the recess, and the protrusion is arranged at a bottom wall of the recess and protrudes in the direction away from the battery cell arrangement structure. ### Claim 11 (depends on 9) The battery pack according to claim 9, wherein the first output electrode of the battery module comprises a first output body electrically connected to an electrode terminal of one of the battery cells and a first bended portion connected to the first output body, and the first bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the first output body and the first bended portion. ### Claim 12 (depends on 11) The battery pack according to claim 11, wherein the second output electrode of the battery module comprises a second output body electrically connected to an electrode terminal of another one of the battery cells and a second bended portion connected to the second output body, and the second bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the second output body and the second bended portion; and at least a part of the insulating portion is located between the first bended portion and the second bended portion. ### Claim 13 (depends on 12) The battery pack according to claim 12, wherein the first bended portion is provided with a first through hole, the battery module further comprises a bolt for the first output electrode and a nut for the first output electrode, and the bolt for the first output electrode is fixed to the nut for the first output electrode through the first through hole; and the second bended portion is provided with a second through hole, the battery module further comprises a bolt for the second output electrode and a nut for the second output electrode, and the bolt for the second output electrode is fixed to the nut for the second output electrode through the second through hole. ### Claim 14 (depends on 13) The battery pack according to claim 13, wherein a material of the fixing plate is resin, and the nut for the first output electrode and the nut for the second output electrode are fixed to the fixing plate by way of integral injection molding. ### Claim 15 (depends on 11) The battery pack according to claim 11, wherein the insulating portion protrudes from the first output body and the second output body, such that at least a part of the insulating portion is located between the first output body and the second output body. ### Claim 16 (depends on 9) The battery pack according to claim 9, wherein the battery cell comprises an electrode assembly and a battery housing, the electrode assembly is accommodated in the battery housing, and the electrode assembly comprises a first electrode sheet, a second electrode sheet and a membrane arranged between the first electrode sheet and the second electrode sheet. ### Claim 17 (depends on 16) The battery pack according to claim 16, wherein the electrode assembly is of a coiled structure and is flat, an outer surface of the electrode assembly comprises two flat surfaces, and the two flat surfaces face each other along the vertical direction; or the electrode assembly is of a laminated structure, and the first electrode sheet, the membrane and the second electrode sheet are laminated in the vertical direction. ### Claim 18 (depends on 9) The battery pack according to claim 9, wherein electrode terminals of the plurality of battery cells of the first battery cell arrangement structure and electrode terminals of the plurality of battery cells of the second battery cell arrangement structure are all arranged on a same side of the battery module.