CN114221064A - Multi-column battery pack and energy storage system - Google Patents
Multi-column battery pack and energy storage system Download PDFInfo
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- CN114221064A CN114221064A CN202111651598.7A CN202111651598A CN114221064A CN 114221064 A CN114221064 A CN 114221064A CN 202111651598 A CN202111651598 A CN 202111651598A CN 114221064 A CN114221064 A CN 114221064A
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- water flow
- battery pack
- energy storage
- storage system
- battery
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- 238000004146 energy storage Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 239000003507 refrigerant Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 9
- 238000004078 waterproofing Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 239000011258 core-shell material Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000264877 Hippospongia communis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
Images
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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The technical scheme of the invention provides a multi-column battery pack which comprises a shell, at least two columns of square battery cells and a plurality of water flow channels, wherein the battery cells are arranged in the shell, two opposite side surfaces of a battery cell shell are provided with a heat superconducting pipeline and a refrigerant channel, and two ends of the refrigerant channel are provided with plug-in connectors protruding out of the shell; the water flow channel is provided with a socket corresponding to the plug connector, and the battery cell is plugged in the water flow channel. The square electric core shell in the battery module can rapidly absorb the heat generated by the electric core in the charging and discharging process and is spread out, the water flow channel is communicated with the refrigerant channel, and the heat can be conducted away by the movement of the refrigerant in the water flow channel and the refrigerant channel, so that the rapid heat dissipation and the temperature rise of the battery module are realized. The invention also provides an energy storage system with the battery pack, and the battery pack can quickly dissipate heat or heat up, so that the influence of insufficient heat dissipation or low temperature on the normal use of the energy storage system can be avoided.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a multi-column battery pack and an energy storage system.
Background
With the great application of batteries in production and life, the problem of battery safety becomes a topic of concern. The untimely heat dissipation of heat leads to battery performance reduction, life decay if not in time, leads to breaking smoking, explosion if serious in the battery charge-discharge process. At present, air heat dissipation is mainly adopted for heat management of the battery, and the efficiency is low; or the bottom of the battery pack is cooled by adopting a coil pipe cooling mode, and the heat dissipation path is longer, so that the heat dissipation efficiency is lower.
Disclosure of Invention
The invention mainly aims to provide a multi-column battery pack and an energy storage system, and aims to solve at least one technical problem. In order to achieve the above object, the present invention provides a multi-row battery pack, comprising:
a housing;
the battery cell is arranged in the shell and comprises a first polarity terminal and a second polarity terminal, the first polarity terminal and the second polarity terminal are arranged at the top of the battery cell, two opposite side surfaces of the battery cell are provided with a heat superconducting pipeline and a refrigerant channel, the heat superconducting pipeline is filled with a heat transfer working medium, and two ends of the refrigerant channel are provided with plug-in connectors protruding out of the shell;
the battery cell is inserted in the water flow channel, and the battery cells are distributed in two rows at least on the water flow channel.
Preferably, the refrigerant channel surrounds the heat superconducting pipeline in a U-shape.
Preferably, the water inlet and the water outlet of the water flow channel are distributed on the same side.
Preferably, two adjacent water flow channels are combined, and the corresponding water outlet and water inlet are closed.
Preferably, two adjacent water flow channels are combined, and the corresponding water outlet and water inlet are combined into one water inlet.
Preferably, two adjacent water flow channels are combined, and the corresponding water outlet and the water inlet are combined into one water outlet.
Preferably, a flexible insulating layer is clamped between the battery core and the battery core, and plays roles in buffering and insulating.
Preferably, a sealing ring is arranged in the socket, and when the plug connector is inserted into the plug, the sealing ring plays a role in sealing and waterproofing.
Preferably, the water flow channel is arranged on a flat plate and plays a role of stabilizing the module.
The invention further provides an energy storage system which comprises the multiple rows of battery packs, and the energy storage system is a wind power energy storage system, a solar energy storage system or a power grid energy storage system.
The technical scheme of the invention provides a multi-column battery pack which comprises a shell, at least two columns of square battery cells and a plurality of water flow channels, wherein the battery cells are arranged in the shell, two opposite side surfaces of a battery cell shell are provided with a heat superconducting pipeline and a refrigerant channel, and two ends of the refrigerant channel are provided with plug-in connectors protruding out of the shell; the water flow channel is provided with a socket corresponding to the plug connector, and the battery cell is plugged in the water flow channel. The square electric core shell in this battery module can absorb electric core heat and the equal stand that produce at the charge-discharge in-process fast, and rivers passageway and refrigerant passageway intercommunication, the refrigerant can be gone out the heat conduction in rivers passageway and refrigerant passageway's removal to realize the quick heat dissipation and the intensification of battery package. The invention also provides an energy storage system with the multiple rows of battery packs, and the multiple rows of battery packs can quickly dissipate heat or heat, so that the influence of insufficient heat dissipation or over-low temperature on the normal use of the energy storage system can be avoided.
Drawings
Fig. 1 is an exploded view of one embodiment of a multi-row battery pack of the present invention.
Fig. 2 is a schematic view of the multiple rows of battery packs of fig. 1 with the outer casing removed.
Fig. 3 is a diagram of yet another embodiment of a multi-row battery pack of the present invention.
Wherein: 11-front end plate, 12-first side plate, 13-second side plate, 14-rear end plate, 15-cover plate, 2-battery core, 21-heat superconducting pipeline, 22-refrigerant channel, 23-first plug connector, 24-second plug connector, 25-first polarity terminal, 26-second polarity terminal, 3-first water flow channel, 31-first water inlet, 32-first socket, 4-second water flow channel, 41-first water outlet, 42-second socket, 5-third water flow channel, 51-second water inlet, 6-fourth water flow channel, 61-second water outlet and 7-flexible insulating layer.
The objects, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be further described in detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
It should be noted that if the embodiments of the present invention refer to the description of "first", "second", etc., the description of "first", "second", etc. is used for descriptive purposes only and is not to be construed as indicating or implying only the relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a battery module, please refer to fig. 1, wherein a multi-row battery pack comprises a housing, a plurality of rows of square battery cores 2 and a plurality of water flow channels. A plurality of electric cores 2 install in the shell, avoid electric core 2 to receive external environment's collision and interference.
The shell includes front end plate 11, first curb plate 12, second curb plate 13, rear end plate 14 and apron 15, front end plate 11 is parallel with rear end plate 14, first curb plate 12 is parallel with second curb plate 13, front end plate 11, first curb plate 12, second curb plate 13, rear end plate 14 fastening connection each other constitute hollow cavity, cover in 2 outsides of electric core after covering apron 15, play the guard action to electric core 2.
The battery cell 2 is a square battery cell, a first side surface 20 of the battery cell 2 is provided with a heat superconducting pipeline 21 and a refrigerant channel 22, a heat transfer working medium (not shown) is sealed in the heat superconducting pipeline 21, the refrigerant channel 22 surrounds the heat superconducting pipeline 21 in a U shape, two ends of the refrigerant channel 22 are respectively provided with a first plug connector 23 and a second plug connector 24, and the first plug connector 23 and the second plug connector 24 are arranged to protrude to the outer side of the shell.
The water flow channels comprise a first water flow channel 3, a second water flow channel 4, a third water flow channel 5 and a fourth water flow channel 6, and the water flow channels are strip-shaped and extend along the arrangement direction of the battery cores 2. The first water flow channel 3 is provided with a first water inlet 31 and a first socket 32, the second water flow channel is provided with a first water outlet 41 and a second socket 42, the first plug 23 corresponds to the first socket 32, the second plug 24 corresponds to the second socket 42, the electric core 2 is inserted into the water flow channel through the matching of the plug and the socket, and the electric core 2 is sequentially inserted into the water flow channel through the mode.
It should be noted that the heat transfer working medium filled in the heat superconducting pipeline 21 may be gas or liquid or a mixture of gas and liquid, such as water, oil, alcohol, etc. The battery cell shell filled with the heat transfer working medium has the characteristics of heat absorption, high heat transfer rate and good temperature uniformity. The suitable working temperature of the battery core 2 is between 20 and 50 ℃, when the temperature of the battery core 2 is higher than 50 ℃, the battery core 3 needs to be cooled, therefore, a refrigerant enters the first water flow channel 3 from the water inlet 31, enters the refrigerant channel 22 through the first plug 23 under the action of pressure, the heat of the battery core 2 is absorbed by the heat superconducting pipeline 21, is spread out and conducted to the refrigerant channel 22, and the refrigerant in the refrigerant channel 22 flows out from the water outlet 41 of the second water flow channel 4 after absorbing the heat, so that the cooling purpose is achieved; when the temperature of the electric core 2 is lower than 20 ℃, the electric core needs to be heated, so that hot water is introduced into the first water flow channel 3, and heat is transferred to the heat superconducting pipeline 21 after flowing through the refrigerant channel 22, so that the inside of the electric core is heated, and the purpose of temperature rise is achieved.
The refrigerant channel 22 on the battery cell 2 surrounds the heat superconducting pipeline 21 in a U shape, and the refrigerant channel 22 and the heat superconducting pipeline 21 are in a single-side expansion, double-side expansion or double-side flat structure. The heat superconducting pipelines 21 are closed pipelines, and the shape of the closed heat superconducting pipelines can be hexagonal honeycombs which are communicated with each other, quadrangles which are communicated with each other, and the like. In the present embodiment, as shown in fig. 1, the cooling medium channel 22 and the heat superconducting pipe 21 are convexly disposed on the surface of the battery cell 2, and protrude outward of the cavity of the battery cell 2.
The shell front end plate 11 is provided with four openings which respectively correspond to the first water inlet 31, the first water outlet 41, the second water inlet 51 and the second water outlet 61, and the water inlets and the water outlets are connected with an external cooling system to adjust multiple rows of battery packs. The first water flow channel 3, the second water flow channel 4, the third water flow channel 5 and the fourth water flow channel 6 are distributed in parallel, in this embodiment, the first water inlet 31, the first water outlet 41, the second water inlet 51 and the second water outlet 61 are on the same side, of course, in other embodiments, they may also be distributed on different sides, and the invention is not limited thereto.
Referring to fig. 1, a plurality of electric cores 2 are inserted in a row in a water flow channel, a flexible insulating layer 7 is disposed between the electric cores 2, and the flexible insulating layer 7 is sandwiched between adjacent electric cores 2; do benefit to and conduct heat between the electric core 2, go out the heat sharing, the flexibility and the insulating nature of flexible insulating layer 7 can protect electric core 2 to avoid collision and conductive interference simultaneously. In other embodiments, a flexible insulating layer 7 may be further sandwiched between two adjacent columns of cells to protect the cells 2 from collision and conductive interference. Since the heat conductive silica gel has good electrical conductivity and insulation performance, the heat conductive silica gel is usually used as a main material of the flexible insulation layer. Other flexible insulating materials or flexible phase-change materials with insulating property can also be adopted for the flexible insulating layer 7.
Referring to fig. 2, the water flow channel is hollow, one end of the water flow channel is closed, and the other end of the water flow channel is provided with a water inlet or a water outlet, when the water flow channel is used, an external cooling system respectively introduces refrigerants into the first water inlet 31 and the second water inlet 51, and the refrigerants respectively flow through the refrigerant channels of the battery cells on which the refrigerants are arranged and then respectively flow out from the first water outlet 41 and the second water outlet 61. A sealing ring (not shown) is arranged in the socket, the plug connector is inserted into the socket, and the sealing ring plays a role in sealing and water proofing.
Referring to fig. 3, the second water flow channel 4 and the third water flow channel 5 are adjacently disposed and combined to form a cavity 8, the electric core 2 is inserted into the cavity 8, and the first water outlet 41 and the second water inlet 51 are combined to form a water inlet or a water outlet. When the first water outlet 41 and the second water inlet 51 are combined into one water outlet, the first water inlet 31 and the second water outlet 61 are water inlets, and the refrigerant enters from the first water inlet 31 and the second water outlet 61, flows through the refrigerant channels on the first water inlet 31 and the second water outlet 61 respectively, is converged in the cavity 8 and finally flows out from the water outlet; when the first water outlet 41 and the second water inlet 51 are combined into one water inlet, the first water inlet 31 and the second water outlet 61 are water outlets, and the refrigerant enters from the cavity 8, flows through the refrigerant channels of the battery cells on which the refrigerant flows, and flows out from the first water inlet 31 and the second water outlet 61 respectively. The second water flow channel 4 and the third water flow channel 5 are combined to form a cavity 8, the first water outlet 41 and the second water inlet 51 can also be arranged in a sealed manner, and the refrigerant enters from the first water inlet 31, flows through the refrigerant channels of the cells in the row on which the refrigerant flows to the cavity 8, further flows through the refrigerant channels of the other row of cells, and finally flows out from the second water outlet 61.
It should be noted that the water flow channels may be respectively and independently arranged in parallel in a strip shape, or may be arranged on one flat plate, and it can be understood that the water flow channels are arranged on the same flat plate, which increases the stability of the battery pack.
The invention further provides an energy storage system. The energy storage system comprises the multiple rows of battery packs. Since the energy storage system adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and the detailed description is omitted. It can be understood that the energy storage system may be a wind power energy storage system, a solar energy storage system, or a grid energy storage system, etc.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes be covered by the claims without departing from the spirit and technical concepts of the present invention by those skilled in the art.
Claims (10)
1. A multi-column battery pack, comprising:
a housing;
the battery cell is arranged in the shell and comprises a first polarity terminal and a second polarity terminal, the first polarity terminal and the second polarity terminal are arranged at the top of the battery cell, two opposite side surfaces of the battery cell are provided with a heat superconducting pipeline and a refrigerant channel, the heat superconducting pipeline is filled with a heat transfer working medium, and two ends of the refrigerant channel are provided with plug-in connectors protruding out of the shell;
the battery cell is inserted in the water flow channel, and the battery cells are distributed in two rows at least on the water flow channel.
2. The multi-row battery pack according to claim 1, wherein the coolant channel surrounds the thermal superconducting conduit in a U-shape.
3. The multi-column battery pack of claim 2, wherein the water inlet and the water outlet of the water flow channel are distributed on the same side.
4. The multi-column battery pack of claim 3, wherein adjacent two of the water flow channels merge and the corresponding water outlet and water inlet are closed.
5. The multi-column battery pack of claim 3, wherein adjacent two of the water flow channels merge, and the corresponding water outlet and water inlet merge into one water inlet.
6. The multi-column battery pack of claim 3, wherein adjacent two of the water flow channels merge, and the corresponding water outlet and water inlet merge into one water outlet.
7. The multi-column battery pack according to claim 4 or 5, wherein a flexible insulating layer is interposed between the battery cells to perform buffering and insulating functions.
8. The multi-column battery pack of claim 7, wherein the sockets have sealing rings therein, the sealing rings sealing and waterproofing the plug when the plug is inserted into the plug.
9. The multi-column battery pack of claim 8, wherein the water flow channels are formed in a flat plate to serve as a stabilizing module.
10. An energy storage system comprising a plurality of rows of battery packs according to any one of claims 1 to 9, wherein the energy storage system is a wind power energy storage system, a solar energy storage system or a grid energy storage system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651598.7A CN114221064A (en) | 2021-12-31 | 2021-12-31 | Multi-column battery pack and energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651598.7A CN114221064A (en) | 2021-12-31 | 2021-12-31 | Multi-column battery pack and energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114221064A true CN114221064A (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111651598.7A Pending CN114221064A (en) | 2021-12-31 | 2021-12-31 | Multi-column battery pack and energy storage system |
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| Country | Link |
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| CN (1) | CN114221064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125085A1 (en) * | 2021-12-31 | 2023-07-06 | 重庆三峡时代能源科技有限公司 | Battery module, battery pack, and energy storage system |
-
2021
- 2021-12-31 CN CN202111651598.7A patent/CN114221064A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125085A1 (en) * | 2021-12-31 | 2023-07-06 | 重庆三峡时代能源科技有限公司 | Battery module, battery pack, and energy storage system |
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Effective date of registration: 20220518 Address after: 400000 No. 107, datagu Middle Road, Xiantao street, Yubei District, Chongqing Applicant after: Chongqing Three Gorges Times Energy Technology Co.,Ltd. Address before: 518000 401, floor 4, No. 26, Tongfu estate industrial zone, Dalang community, Dalang street, Longhua District, Shenzhen, Guangdong Province Applicant before: Hanguang thermal technology innovation center (Shenzhen) Co.,Ltd. |
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Country or region after: China Address after: 400000 No. 107, datagu Middle Road, Xiantao street, Yubei District, Chongqing Applicant after: Chongqing Gengchen Energy Technology Co.,Ltd. Address before: 400000 No. 107, datagu Middle Road, Xiantao street, Yubei District, Chongqing Applicant before: Chongqing Three Gorges Times Energy Technology Co.,Ltd. Country or region before: China |