Battery module, battery assembly, battery module, battery system and electric vehicle

The utility model discloses a battery module, a battery assembly with the battery module, a battery module, a battery system and an electric vehicle. Wherein the battery module comprises a plurality of batteries, each battery comprises a body, a positive tab and a negative tab, the body is provided with a first end part provided with the positive tab, a second end part provided with the negative tab, a first end surface and a second end surface, and the center lines of the positive tab and the negative tab are positioned between the first end surface and the length center line of the body; thepositive busbar comprises a positive busbar body and a plurality of positive connecting parts connected with the positive lug, the positive busbar body is located between the center line of the positive lug and the second end surface, and the plurality of positive connecting parts are arranged on the positive busbar body; and the negative busbar comprises a negative busbar body and a plurality ofnegative connecting parts connected with the negative lug, the negative busbar body is located between the center line of the negative lug and the second end surface, and the plurality of negative connecting parts are arranged on the negative busbar body at intervals. The battery module has the advantages of high energy density and the like.

1. A battery module, characterized in that includes:

A plurality of cells, each said cell comprising a main body, a positive and negative ear, the body has in the direction of its length relative to the 1st and 2nd of the end part of the end part in the width direction and opposite to the end face of the end face of the 1st and 2nd, the anode ring which is arranged at the end of the 1st, the negative electrode ring which is arranged at the end of the 2nd, wherein the positive electrode negative electrode tab in each of the center line of the width of the main body in the direction lying in the 1st end face of the main body between the length of the central line, the positive electrode of the negative electrode tab in the of each of said center line extending along the length direction of the main body;

The positive bus bar, the positive bus bar includes a positive electrode construct breaked bank and a plurality of positive electrode connecting part, said positive electrode construct breaked bank in the width of the main body the direction lying in the positive electrode of the ear with the 2nd the central line between the end faces, a plurality of the positive electrode connecting part along the thickness of the main body spaced apart in the direction of the positive electrode is provided on the row body, wherein a plurality of said positive battery tab and a plurality of the positive electrode is connected with the connecting part; and

The negative bus bar, the negative bus bar includes a negative construct breaked bank and a plurality of cathode connection part, said cathode construct breaked bank in the width of the main body in a direction in which said cathode of the ear with the 2nd between the center line of the end surface, a plurality of the negative pole connected part along the thickness direction of the main body arranged spaced apart on said cathode row body, wherein a plurality of the negative pole of the battery ear and a plurality of the negative pole connected with the connecting part.

2. The battery module according to Claim 1, characterized in that the positive electrode of the ear of the body to the center of the length of the center line of the width of the main body in the direction of the 1st distance interval, the negative electrode ear of the center line of the length of the body with the main body of the center line of the width of the main body in the direction of the 2nd distance interval, wherein said 1st and the distance between the width of the body is greater than zero and less than or equal to 0.3, the 2nd and the distance between the width of the body is greater than zero and less than or equal to 0.3.

3. The battery module according to Claim 1, characterized in that

Each of the positive electrode connecting part of the end of the 1st row body connected with the positive electrode, the positive electrode connecting two adjacent the defined between the positive electrode , each of the positive electrode far away from the end of the positive electrode row body open;

Each of the negative electrode of the connection end of the 1st row body connected with the negative pole, two adjacent the negative electrode connecting part defined between the cathode , each of the negative electrode far away from the end of the negative electrode row body open.

4. The battery module according to Claim 1, characterized in that

The positive electrode of the 1st and 2nd row body comprises a portion of the part, the part of the 1st and the 2nd part in the width direction of said main body to face and spaced apart, each of the positive electrode connecting part of the end of the 1st 1st part connected with, each of the positive electrode connecting part of the end of the 2nd 2nd part connected with, two adjacent the positive electrode connecting part defined between the positive electrode ;

The negative part of the 3rd and 4th row body including the part, the part of the 3rd and the 4th part in the width direction of said main body to face and spaced apart, each of the negative electrode of the connection with the end of the 1st 3rd part connected to, each of the negative electrode of the connection with the end of the 2nd 4th portion, two adjacent the negative electrode connecting part defined between the cathode .

5. The battery module as in Claim 3 or Claim 4, characterized in that

Two adjacent the ear between the positive electrode having a positive electrode connecting part, the two adjacent positive electrode tab in the each of the one of the anode and connected with the connecting part;

Two adjacent said cathode ear between the negative electrode connecting part having one, two adjacent the cathode in each of the ear with the one said cathode connected with the connecting part.

6. The battery module according to Claim 2, characterized in that the distance between the body of the 1st-width ratio equal to or greater than 0.1 and less than or equal to 0.3, the 2nd and the distance between the width of the body is greater than or equal to 0.1 and less than or equal to 0.3.

7. The battery module as in Claim 2 or Claim 6, characterized in that the distance is equal to the distance 1st 2nd.

8. The battery module according to Claim 5, characterized in that each of the positive electrode ear having a positive electrode sockets, two adjacent the positive electrode tab in the positive electrode of each one of the bent part and the one of the positive electrode connected with the connecting part, each of the negative electrode ear has the cathode bight, two adjacent the negative electrode tab in the negative electrode of each one of the bent part and the one said cathode connected with the connecting part.

9. A module battery assembly, characterized in that includes a plurality of battery modules, each of the battery module is a battery module as in any one of Claims 1-8, wherein a plurality of the battery module in series, two adjacent the battery module of one of the positive bus bar connected with two adjacent the battery module in the other one of the bus bar is connected to the negative pole.

10. Module battery assembly according to Claim 9, characterized in that the anode bus bar by the 1st made of conducting material, the negative bus bar includes a matrix and is set at the 1st 1st 1st layer on the base body, the base body is formed by the 1st 1st made of conducting material, the 1st layer is composed of a conductive material different from the material of the 1st 2nd made of conducting material, wherein the positive electrode the ear by states 1st made of conducting material, the positive electrode ear welding in collecting bus and the positive electrode, the negative electrode the ear by states 2nd made of conducting material, the negative electrode ear is welded in the 1st on the connecting layer.

11. Module battery assembly according to Claim 10, characterized in that the conductive material is aluminum 1st, the 2nd conductive material is copper.

12. Module battery assembly according to Claim 10, characterized in that two adjacent the battery module in the one of the 1st base connected with two adjacent the battery module in the other one of the said positive bus bar are integrally formed.

13. A battery module, characterized in that includes:

The outer cover, the stated in the shell with the receiving cavity; and

Module battery assembly, said battery module is a module battery assembly as in any one of Claims 9-12, the module battery assembly is arranged at the housing of the holding cavity.

14. A battery system, characterized in that includes:

Mounting shell, said mounting shell with throw; and

The battery module, the battery module is a battery module according to Claim 13, the battery module is arranged in the mounting cavity.

15. Electric vehicle, characterized in that includes:

The vehicle body; and

The battery system, the battery system is a battery system according to Claim 14, the battery system arranged on the vehicle body.

[1]
Technical Field

[2]
The utility model relates to the field of batteries, in particular, relates to a battery module, also relates to the assembly of the module battery of the battery module, the battery module, the battery system and electric vehicle.

[3]
Background Art

[4]
The existing for electric vehicle battery positive and negative of the ear is placed in the opposite direction, the positive tabs with the center line of the center line of the overlap of the battery, the negative pole of the battery of the ear and the center line of the center line of the overlap.

[5]
Content of the utility model

[6]
The purpose of the utility model is to overcome the problems of the prior art, the battery module and with the battery module of the module battery assembly, the battery module, the battery system and electric vehicle, the battery module has the advantage of high energy density.

[7]
In order to achieve the above object, the utility model 1st aspect provides a battery module, the battery module comprises: a plurality of cells, each said cell comprising a main body, a positive and negative ear, the body has in the direction of its length relative to the 1st and 2nd of the end part of the end part in the width direction and opposite to the end face of the end face of the 1st and 2nd, the anode ring which is arranged at the end of the 1st, the negative electrode ring which is arranged at the end of the 2nd, wherein the positive electrode negative electrode tab in each of the center line of the width of the main body in the direction lying in the 1st end face of the main body between the length of the central line, the positive electrode of the negative electrode tab in the of each of said center line extending along the length direction of the main body; the positive bus bar, the positive bus bar includes a positive electrode construct breaked bank and a plurality of positive electrode connecting part, said positive electrode row body in the width direction of the main body of the ear for the positive electrode of the center line of the end surface of the with the 2nd between, a plurality of the positive electrode connecting part along the thickness of the main body spaced apart in the direction of the positive electrode is provided on the row body, wherein a plurality of said positive battery tab and a plurality of the positive electrode is connected with the connecting part; and the negative bus bar, the negative bus bar includes a negative construct breaked bank and a plurality of cathode connection part, said cathode construct breaked bank in the width of the main body in a direction in which said cathode of the ear with the 2nd between the center line of the end surface, a plurality of the negative pole connected part along the thickness direction of the main body arranged spaced apart on said cathode construct breaked bank, wherein a plurality of the negative pole of the battery ear and a plurality of the negative pole connected with the connecting part.

[8]
According to the utility model embodiment of the battery module has the advantage of high energy density.

[9]
Preferably, the positive electrode of the ear of the body to the center of the length of the center line of the width of the main body in the direction of the 1st distance interval, the negative electrode ear of the center line of the length of the body with the main body of the center line of the width of the main body in the direction of the 2nd distance interval, wherein said 1st and the distance between the width of the body is greater than zero and less than or equal to 0.3, the 2nd and the distance between the width of the body is greater than zero and less than or equal to 0.3, preferably, the 1st and the distance between the width of the body is greater than or equal to 0.1 and less than or equal to 0.3, the 2nd and the distance between the width of the body is greater than or equal to 0.1 and less than or equal to 0.3, more preferably, the distance is equal to the distance 1st 2nd.

[10]
Preferably, each of the positive electrode connecting part of the end of the 1st row body connected with the positive electrode, the positive electrode connecting two adjacent the defined between the positive electrode , each of the positive electrode far away from the end of the positive electrode row body open; each of said negative electrode connecting part of the end of the 1st row body connected with the negative pole, two adjacent the negative electrode connecting part defined between the cathode , each of the negative electrode far away from the end of the negative electrode row body open.

[11]
Preferably, the positive electrode of the 1st and 2nd row body comprises a portion of the part, the part of the 1st and the 2nd part in the width direction of said main body to face and spaced apart, each of the positive electrode connecting part of the end of the 1st 1st part connected with, each of the positive electrode connecting part of the end of the 2nd 2nd part connected with, two adjacent the positive electrode connecting part defined between the positive electrode ; the negative part of the 3rd and 4th row body including the part, the part of the 3rd and the 4th part in the width direction of said main body face and spaced from the, each of the negative pole of the connecting part of the end of the 1st and the 3rd connected, each of the negative electrode of the connection with the end of the 2nd 4th portion, two adjacent the negative electrode connecting part defined between the cathode .

[12]
Preferably, the two adjacent the ear between the positive electrode having a positive electrode connecting part, the two adjacent positive electrode tab in the each of the one of the anode and connected with the connecting part; two adjacent said cathode ear between the negative electrode connecting part having one, two adjacent the cathode in each of the ear with the one said cathode connected with the connecting part, preferably, each of the positive electrode having a positive electrode bending the ear, two adjacent the positive electrode tab in the positive electrode of each one of the bent part and the one of the positive electrode connected with the connecting part, each of the negative electrode ear has the cathode bight, two adjacent the negative electrode tab in the negative electrode of each one of the bent part and the one said cathode connected with the connecting part.

[13]
The utility model 2nd provide module battery assembly, the module battery assembly includes a plurality of battery modules, each of the battery module is according to the utility model 1st in the battery module, wherein a plurality of the battery module in series, two adjacent the battery module in the positive bus bar of one of the adjacent two of the battery module in the other one of the bus bar is connected to the negative pole.

[14]
According to the embodiment of the module battery assembly has the advantage of…