CN110571369A - Battery module - Google Patents
Battery module Download PDFInfo
- Publication number
- CN110571369A CN110571369A CN201910486726.3A CN201910486726A CN110571369A CN 110571369 A CN110571369 A CN 110571369A CN 201910486726 A CN201910486726 A CN 201910486726A CN 110571369 A CN110571369 A CN 110571369A
- Authority
- CN
- China
- Prior art keywords
- battery
- battery cells
- subunit
- battery module
- voltage tap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a battery module having a plurality of battery cells (2) each having a first voltage tap (31) and a second voltage tap (32), wherein the first voltage tap (31) and the second voltage tap (32) of the plurality of battery cells (2) can be electrically conductively connected to each other for the electrical parallel connection and/or series connection of the individual battery cells (2), comprising at least one subunit (4) having two battery cells (2, 21, 22) which are mechanically connected to each other by means of a clamping element (5), wherein the clamping element (5) has a first receptacle (61) which is designed to elastically receive the first battery cell (21) and a second receptacle (62) which is designed to elastically receive the second battery cell (22).
Description
Technical Field
The invention proceeds from a battery module of the type according to the independent claim.
Background
As is known from the prior art, a battery module may be composed of a plurality of individual battery cells, which may be electrically connected in series and/or in parallel with each other.
In order to operate the battery cells in the preferred temperature range, it is also known for the battery module to comprise a cooling system, which in particular should ensure that the battery cells do not exceed a predetermined temperature.
A battery module is known from the printed document DE 102007024869, in which the battery cells can be cooled.
Disclosure of Invention
A battery module having a plurality of battery cells with the features of the independent claim offers the following advantages: it is possible to provide a battery module of which the battery cells can be replaced in a simple manner.
In this regard, a battery module having a plurality of battery cells is provided.
The battery cells are in particular designed as lithium ion battery cells or solid electrolyte battery cells.
The battery cells have a first voltage tap and a second voltage tap, respectively.
Here, the battery cells may be arranged electrically in parallel and/or in series with each other.
In this case, the first voltage tap and the second voltage tap of the plurality of battery cells can be connected to each other in an electrically conductive manner and in particular to each other.
For the parallel connection, the first voltage taps of the two battery cells to be connected are conductively connected to each other and the second voltage taps of the two battery cells to be connected are conductively connected to each other.
For the series connection, the first voltage tap of one battery cell is conductively connected with the second voltage tap of another battery cell and the second voltage tap of the one battery cell is conductively connected with the first voltage tap of yet another battery cell.
Further, the battery module includes at least one sub-unit.
The subunit here has two battery cells which are mechanically connected to one another by means of a clip element.
The clip element has a first receptacle, which is designed to receive the first battery cell in a resilient manner.
The clip element has a second receptacle, which is designed to receive a second battery cell in a resilient manner.
Advantageous embodiments and improvements of the device specified in the independent claims can be achieved by the measures cited in the dependent claims.
The elastic accommodation of the first battery cell or the second battery cell is to be understood here to mean that the first accommodation part or the second accommodation part is constructed in such a way that the first accommodation part or the second accommodation part exerts a continuous force on the first battery cell or the second battery cell, wherein the continuous force may be referred to as a spring force, in particular.
In this case, the first receptacle or the second receptacle is designed, for example, in such a way that a deformation of the first receptacle or the second receptacle determines a continuous restoring or spring force which can act on the first battery pack or the second battery pack and thus can reliably receive the first battery cell or the second battery cell.
The battery cells are expediently each of prismatic design. It is thereby possible to provide a simple structure of the battery pack module as a whole.
For example, a battery cell of prismatic construction may have a first half-shell and a second half-shell, wherein such a battery cell is commonly referred to and known as a hard-shell battery cell. Here, the first half-shell can form a first voltage tap and the second half-shell can form a second voltage tap.
By the elastic accommodation of the battery cells by the clip element, it is no longer mandatory here to connect the first half shell and the second half shell to one another, for example by gluing.
In addition, an insulating element can be arranged between the first half-shell and the second half-shell in order to electrically insulate the first half-shell and the second half-shell from one another.
A battery module is thus provided in which the battery cells have voltage taps of large-area construction and thus a simple electrically conductive connection between the battery cells can be formed.
Suitably, the clip element is constructed from a polymeric material.
Such a construction variant offers the advantage, in particular, that such polymer materials have good acoustic damping properties and can therefore contribute to meeting the acoustic requirements set forth for the battery module.
Suitably, the two battery cells of at least one subunit are mechanically connected to each other by means of two clip elements. It is advantageous here if the two clip elements are arranged at opposite sides of the two battery cells.
Thus, a reliable mechanical connection of the two battery cells can be provided by means of the clip element.
Furthermore, two clamping elements are preferably arranged on each of the two opposite sides of the two battery cells, whereby a still more reliable mechanical connection can be formed.
Thus, for example, a total of four clamping elements are used here for the mechanical connection of two battery cells of at least one subunit.
Suitably, the battery module has a first subunit and a second subunit. The first subunit and the second subunit are expediently arranged directly adjacent to one another.
According to an advantageous aspect of the present invention, a first temperature regulating element may also be arranged between two battery cells of at least one subunit.
In this way, the two battery cells of at least one subunit can be reliably and extensively tempered.
According to a further advantageous aspect of the invention, a second temperature control element can also be arranged between the first subunit and the second subunit.
In this way, it is possible to reliably control the temperature of the battery cells of the first and second subunit, which are arranged adjacent to the second temperature control element.
It should be noted here that with a preferred embodiment, in which a first tempering element is arranged between two battery cells of a subunit and a second tempering element is arranged between the first subunit and the second subunit, respectively, it is possible to reliably temper all battery cells, in particular when the first tempering element is a heating element and the second tempering element is a cooling element. In this case, it is naturally also possible for the first temperature control element to be a cooling element and the second temperature control element to be a heating element.
In this case, it is preferred that the first receptacle has at least one first spring element and the second receptacle has at least one second spring element.
It is also preferred that the first receptacle has two first spring elements and the second receptacle has two second spring elements. Here, the spring element is preferably configured in such a way that it can extend in the direction of the receiving space of the first or second receiving part, in which the first or second battery cell is to be received, and be deformed in the opposite direction, thereby generating a spring force directed in the direction of the receiving space.
Expediently, the first spring element and the second spring element arranged between the two receiving spaces are at least partially of one piece construction or are arranged in contact with one another. A simple and mechanically stable construction of the battery module can thereby be provided.
Drawings
Embodiments of the invention are illustrated in the drawings and are set forth in detail in the description that follows.
Wherein:
Figure 1 shows a fragment of a battery module according to the invention in a top view,
Fig. 2 schematically shows a battery module according to the invention in a top view, an
Fig. 3 shows an embodiment of the battery module according to the invention in a perspective view.
Detailed Description
Fig. 1 shows a section of a battery module 1 according to the invention in a top view.
The battery module 1 has a plurality of battery cells 2.
The battery cells 2 each have a first voltage tap 31 and a second voltage tap 32.
Here, the first voltage tap 31 may be, for example, a negative voltage tap and the second voltage tap 32 may be, for example, a positive voltage tap.
According to the embodiment of fig. 1, the battery module 1 has a battery cell 2, wherein both a first voltage tap 31 and a second voltage tap 32 are arranged on the upper side 7.
The first voltage tap 31 and the second voltage tap 32 of one battery cell 2 can in this case be electrically conductively connected to the first voltage tap 31 or the second voltage tap 32, respectively, of the other battery cell 2, in order to thus form an electrical parallel connection and/or a series connection of the individual battery cells 2 with one another.
The arrangement according to fig. 1 is preferably used here for the series connection of battery cells 2.
The battery module 1 has a first subunit 4 here.
The first subunit 4 here comprises two battery cells 2, which are mechanically connected to each other by means of a clip element 5.
The clip element 5 has a first receptacle 61, which is designed to receive the first battery cell 21 in a resilient manner.
In the exemplary embodiment according to fig. 1, the first battery cell 21 is elastically accommodated in a first accommodation section 61.
The clip member 5 also has a second receiving portion 62 configured to elastically receive the second battery cell 22.
In the exemplary embodiment according to fig. 1, the second battery cell 22 is elastically accommodated in the first accommodation 62.
It should be noted here that the first battery cell 21 and the second battery cell 22 are in particular two battery cells 2 of the subunit 4.
According to the battery module 1 shown in fig. 1, the battery cells 2 are each of prismatic design.
The prismatic battery cells 2 have side faces which are arranged in pairs extending parallel to one another and which are also of the same general configuration.
Furthermore, the side faces arranged adjacent to one another are arranged at right angles to one another.
Fig. 1 shows an exemplary embodiment of a battery module 1, in which a first voltage tap 31 and a second voltage tap 32 are both arranged on the upper side 7 of the battery cells.
Fig. 1 also shows that the first receptacle 61 has a spring element 9, wherein the first receptacle 61 has in particular a first spring element 91 and a second first spring element 92.
Fig. 1 also shows that the second receptacle 62 has a spring element 10, wherein the first receptacle 62 in particular has a first second spring element 101 and a second spring element 102.
In this case, it can also be seen from fig. 1 that the second first spring element 92 and the first second spring element 101 are arranged in contact with one another.
It is also possible for the second first spring element 92 and the first second spring element 101 to be at least partially formed in one piece.
The two first spring elements 91, 92 are designed in such a way that they extend in the direction of the first receiving space 61, which is also to be understood in the sense that the distance between the two first spring elements 91, 92 decreases with increasing distance from the base element 11 of the clip element 5.
The two second spring elements 101, 102 are designed in such a way that they extend in the direction of the second receiving space 62, which is also to be understood to mean that the distance between the two second spring elements 101, 102 decreases with increasing distance from the base element 11 of the clip element 5. It is thereby possible to achieve elastic accommodation of the first battery cell 21 in the first accommodation portion 61 and elastic accommodation of the second battery cell 22 in the second accommodation portion 62.
The clamping element 5 is preferably constructed from a polymer material.
The second first spring element 92 and the first second spring element 101 are arranged in such a way that the distance 12 between the two battery cells 21,22 is determined in such a way that a sufficient volume expansion of the battery cells 2 is also possible after receiving the first temperature control element 81, which will be described below.
Fig. 2 schematically shows an embodiment of the battery module 1 in a top view. The battery module 1 has a plurality of subunits 4 as already described in connection with fig. 1.
The two battery cells 2 of the respective subunit 4 are in this case mechanically connected to one another by means of two clamping elements 5 arranged on the upper side 7.
The battery module 1 in particular has a first subunit 41 and a second subunit 42. The first subunit 41 and the second subunit 42 are here arranged directly adjacent to one another. This is to be understood in particular that no further battery cells 2 are arranged between the first subunit 41 and the second subunit 42.
Here, it can be seen from fig. 2 that a first temperature control element 81 is arranged between the two battery cells 2 of the first subunit 41 and between the two battery cells 2 of the second subunit 42, respectively. The first temperature control element 81 can be a cooling element designed to cool the battery cells 2 or a heating element designed to heat the battery cells 2.
Furthermore, it can be seen from fig. 2 that a second temperature control element 82 is arranged between the first subunit 41 and the second subunit 42.
The second temperature control element 82 can be a cooling element designed to cool the battery cells 2 or a heating element designed to heat the battery cells 2.
Preferably, the first temperature control element 81 is a cooling element and the second temperature control element 82 is a heating element, or the first temperature control element 81 is a heating element and the second temperature control element 82 is a cooling element.
In other words, this means that the first and second temperature regulating elements 81 and 82, respectively, serve different purposes, i.e. cooling the battery cells 2 or heating the battery cells 2.
Here, it can also be seen in fig. 2 that the first temperature control elements 81 can be connected to one another in a comb-like manner by straight sections 810 and can be constructed together with sections 811 arranged between the battery cells 2.
Here, it can also be seen in fig. 2 that the second temperature-control elements 82 can be connected to one another in a comb-like manner by straight sections 820 and can be constructed together with sections 822 which are arranged between the battery cells 2 or between the subunits 4.
Fig. 3 shows an embodiment of the battery module 1 according to the invention in a perspective view.
Here, it can be seen from fig. 3 that the two battery cells 2,21,22 of the subunit 4 are mechanically connected to each other by means of clip elements 5 arranged at opposite sides of the two battery cells 2, respectively.
In particular, a first clip element 51 is arranged on the first side 40 and a second clip element 52 is arranged on the second side 50. Here, the first side 40 may be an upper side and the second side 50 may be a lower side, wherein the two sides are opposite to each other.
In particular, a first clip element 53 is arranged here at the third side 60 and a second clip element 54 is arranged at the fourth side 70. Here, the third side 60 may be a side and the fourth side 70 may also be a side, wherein the two sides are opposite to each other.
As can be seen from fig. 3, it is of course also possible to always arrange two clamping elements 5 on one side 40, 50, 60, 70.
Claims (10)
1. Battery module having a plurality of battery cells (2) each having a first voltage tap (31) and a second voltage tap (32), wherein the first voltage tap (31) and the second voltage tap (32) of the plurality of battery cells (2) can be electrically conductively connected to each other for the electrical parallel connection and/or series connection of the individual battery cells (2), characterized by comprising at least one subunit (4) having two battery cells (2, 21, 22) which are mechanically connected to each other by means of a clamping element (5), wherein the clamping element (5) has a first receptacle (61) which is designed to resiliently receive a first battery cell (21) and a second receptacle (62) which is designed to resiliently receive a second battery cell (22).
2. The battery module as claimed in claim 1, characterized in that the battery cells (2) are each of prismatic construction.
3. The battery module as claimed in one of the preceding claims 1 to 2, characterized in that the battery cells (2) of prismatic construction have a first half-shell forming a first voltage tap and a second half-shell forming a second voltage tap.
4. The battery module according to one of the preceding claims 1 to 3, characterized in that the clip element (5) is constructed from a polymer material.
5. The battery module according to one of the preceding claims 1 to 4, characterized in that the two battery cells (2, 21, 22) are mechanically connected to each other by means of two clip elements (5) arranged at opposite sides of the two battery cells (2).
6. Battery module according to one of the preceding claims 1 to 5, characterized in that the battery module (1) comprises a first subunit (41) and a second subunit (42), the first subunit (41) and the second subunit (42) being arranged directly adjacent to each other.
7. battery module according to one of the preceding claims 1 to 6, characterised in that a first tempering element (81) is also arranged between two battery cells (2) of at least one subunit (4, 41, 42).
8. Battery module according to one of the preceding claims 6 or 7, characterised in that a second temperature regulating element (82) is also arranged between the first subunit (41) and the second subunit (42).
9. Battery module according to one of the preceding claims 1 to 8, characterised in that the first receptacle (61) has at least one first spring element (9) and the second receptacle (62) has at least one second spring element (10).
10. Battery module according to the preceding claim 9, characterized in that the first and second spring elements are at least partially of one-piece construction or the first and second spring elements (9, 92, 10, 101) are arranged in contact with each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018208946.9A DE102018208946A1 (en) | 2018-06-06 | 2018-06-06 | battery module |
| DE102018208946.9 | 2018-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110571369A true CN110571369A (en) | 2019-12-13 |
Family
ID=68652103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910486726.3A Pending CN110571369A (en) | 2018-06-06 | 2019-06-05 | Battery module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110571369A (en) |
| DE (1) | DE102018208946A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093501A (en) * | 1999-09-21 | 2001-04-06 | Matsushita Electric Ind Co Ltd | Connecting structure of battery |
| CN102347509A (en) * | 2010-07-29 | 2012-02-08 | 日立车辆能源株式会社 | Electric storage module and electric storage device |
| CN102484227A (en) * | 2009-08-05 | 2012-05-30 | 贝洱两合公司 | Device For Restraining An Energy Store |
| JP2012182027A (en) * | 2011-03-01 | 2012-09-20 | Jst Mfg Co Ltd | Connector of battery cells and battery module |
| CN103053068A (en) * | 2010-08-12 | 2013-04-17 | 古河电气工业株式会社 | Battery temperature regulation system and battery temperature regulation unit |
| CN105609691A (en) * | 2014-06-26 | 2016-05-25 | 罗伯特·博世有限公司 | Cell connector and battery cell, battery module, battery, battery system, vehicle and method for producing a battery module |
| CN205609622U (en) * | 2016-04-12 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Battery module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008181733A (en) * | 2007-01-24 | 2008-08-07 | Calsonic Kansei Corp | Cooling system for battery for vehicle |
| DE102007024869B4 (en) | 2007-05-29 | 2021-05-06 | Robert Bosch Gmbh | Energy storage module and electrical device with at least one energy storage module |
| DE102009013651A1 (en) * | 2009-03-17 | 2010-09-23 | Continental Automotive Gmbh | Cooling system for energy storage of battery cells, has coolant inflow, coolant drainage and cooling agent distributor, where cooling agent distributor has flow delimitation unit |
| DE102010026133A1 (en) * | 2010-07-05 | 2012-01-05 | Ads-Tec Gmbh | Cooling device in a battery pack |
| SE538555C2 (en) * | 2014-12-17 | 2016-09-20 | Scania Cv Ab | Fastening device for batteries, especially batteries for vehicles |
-
2018
- 2018-06-06 DE DE102018208946.9A patent/DE102018208946A1/en not_active Withdrawn
-
2019
- 2019-06-05 CN CN201910486726.3A patent/CN110571369A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093501A (en) * | 1999-09-21 | 2001-04-06 | Matsushita Electric Ind Co Ltd | Connecting structure of battery |
| CN102484227A (en) * | 2009-08-05 | 2012-05-30 | 贝洱两合公司 | Device For Restraining An Energy Store |
| CN102347509A (en) * | 2010-07-29 | 2012-02-08 | 日立车辆能源株式会社 | Electric storage module and electric storage device |
| CN103053068A (en) * | 2010-08-12 | 2013-04-17 | 古河电气工业株式会社 | Battery temperature regulation system and battery temperature regulation unit |
| JP2012182027A (en) * | 2011-03-01 | 2012-09-20 | Jst Mfg Co Ltd | Connector of battery cells and battery module |
| CN105609691A (en) * | 2014-06-26 | 2016-05-25 | 罗伯特·博世有限公司 | Cell connector and battery cell, battery module, battery, battery system, vehicle and method for producing a battery module |
| CN205609622U (en) * | 2016-04-12 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018208946A1 (en) | 2019-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191213 |
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| WD01 | Invention patent application deemed withdrawn after publication |