CN114221071A - Battery module, battery package and energy storage system - Google Patents

Battery module, battery package and energy storage system Download PDF

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Publication number
CN114221071A
CN114221071A CN202111651634.XA CN202111651634A CN114221071A CN 114221071 A CN114221071 A CN 114221071A CN 202111651634 A CN202111651634 A CN 202111651634A CN 114221071 A CN114221071 A CN 114221071A
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CN
China
Prior art keywords
battery
water flow
flow channel
battery module
energy storage
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
Application number
CN202111651634.XA
Other languages
Chinese (zh)
Inventor
张毅鸿
周颖
何秋亮
赵吉勇
龚青龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Three Gorges Times Energy Technology Co ltd
Original Assignee
Hanguang Thermal Technology Innovation Center Shenzhen Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hanguang Thermal Technology Innovation Center Shenzhen Co ltd filed Critical Hanguang Thermal Technology Innovation Center Shenzhen Co ltd
Priority to CN202111651634.XA priority Critical patent/CN114221071A/en
Publication of CN114221071A publication Critical patent/CN114221071A/en
Priority to PCT/CN2022/139767 priority patent/WO2023125085A1/en
Pending legal-status Critical Current

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    • 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
    • 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • 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
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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 battery module, which comprises a shell, a plurality of square battery cores and a water flow channel, wherein the battery cores are arranged in the shell, a heat superconducting pipeline and a refrigerant channel are arranged on a first side surface of a battery core shell, 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 a battery pack and an energy storage system with the battery module, and the battery module can quickly dissipate heat or raise the temperature, so that the influence of insufficient heat dissipation or over-low temperature on the normal use of the energy storage system can be avoided.

Description

Battery module, battery package and energy storage system
Technical Field
The invention relates to the technical field of batteries, in particular to a battery module, a 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 battery module, a 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 battery module including:
a housing;
the battery cell comprises a first polarity terminal and a second polarity terminal, a heat superconducting pipeline and a refrigerant channel are arranged on the first side surface of the battery cell shell, heat transfer working media are filled in the heat superconducting pipeline, and plug connectors protruding out of the shell are arranged at two ends of the refrigerant channel;
the water flow channel is hollow, one end of the water flow channel is closed, the other end of the water flow channel is provided with a water inlet or a water outlet, the water flow channel is provided with a socket corresponding to the plug connector, and the electric core is plugged in the water flow channel.
Preferably, the second side surface of the battery cell shell is provided with a heat superconducting pipeline and a refrigerant channel, the heat superconducting pipeline is filled with heat transfer working media, and two ends of the refrigerant channel are provided with plug connectors protruding out of the shell.
Preferably, the refrigerant channel surrounds the heat superconducting pipeline in a U-shape.
Preferably, the first polarity terminal and the second polarity terminal are respectively located on two opposite side surfaces of the battery cell.
Preferably, the first and second polarity terminals are on the same side of the cell.
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, the plug connector is inserted into the plug, and the sealing ring plays a role in sealing and waterproofing.
Preferably, the water channel is fixed on a flat plate and functions as a stabilizing module.
The invention further provides a battery pack which comprises at least two battery modules which are stacked or arranged side by side.
The invention further provides an energy storage system which comprises the battery pack, 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 battery module, which comprises a shell; the battery cell is arranged in the shell, a heat superconducting pipeline and a refrigerant channel are arranged on the first side surface of the battery cell shell, heat transfer working media are filled in the heat superconducting pipeline, and two ends of the refrigerant channel are provided with plug-in connectors protruding out of the shell; and 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 removal in rivers passageway and refrigerant passageway can go out the heat conduction, perhaps carries thermal refrigerant and gives electric core with the heat transfer, heats electric core again to realize quick heat dissipation and the intensification of battery module. The invention also provides a battery pack and an energy storage system with the battery module, and the battery module can quickly dissipate heat or raise the temperature, 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 illustrating a battery module according to an embodiment of the present invention.
Fig. 2 is a view illustrating another embodiment of a battery module according to the present invention.
Fig. 3 shows a first embodiment of the water flow channel of the present invention.
Fig. 4 shows a second embodiment of the water flow channel 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, 20-first side surface, 21-heat superconducting pipeline, 22-refrigerant channel, 23-first plug connector, 24-second plug connector, 25-third plug connector, 26-first polarity terminal, 27-second polarity terminal, 3-first water flow channel, 31-water inlet, 32-first socket, 4-second water flow channel, 41-water outlet, 42-second socket and 5-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 present invention provides a battery module, please refer to fig. 1, which includes a housing, a plurality of square battery cells 2 and a water channel. 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 channel comprises a first water flow channel 3 and a second water flow channel 4, the first water flow channel 3 and the second water flow channel 4 are in a long strip shape, a water inlet 31 and a first socket 32 are arranged on the first water flow channel 3, a water outlet 41 and a second socket 42 are arranged on the second water flow channel, the first plug 23 corresponds to the first socket 32, the second plug 24 corresponds to the second socket 42, and the electric core 2 is plugged on the water flow channel through the matching of the plug and the socket.
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 second side (not shown) opposite to the first side 20 on the electric core 2 is also provided with a heat superconducting pipeline and a refrigerant channel, a heat transfer working medium is sealed in the heat superconducting pipeline, and the refrigerant channel is provided with a third plug connector 25 and a fourth plug connector (not shown).
Two openings are arranged on the front end plate 11 of the shell and respectively correspond to the water inlet 31 and the water outlet 41, and the water inlet 31 and the water outlet 41 are connected with an external cooling system to adjust the battery module. The first water flow channel 3 and the second water flow channel 4 are distributed in parallel, in this embodiment, the water inlet 31 and the water outlet 41 are distributed on the same side, but in other embodiments, the water inlet 31 and the water outlet 41 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 5 is disposed between the electric cores 2, and the flexible insulating layer 5 is sandwiched between adjacent electric cores 2; do benefit to and conduct heat between electric core 2, distribute away the heat, the flexibility and the insulating nature of flexible insulating layer 5 can protect electric core 2 to avoid collision and conductive interference simultaneously. 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 5.
The battery cell 2 is provided with a first polarity terminal 26 and a second polarity terminal 27, and in the present embodiment, the first polarity terminal 26 and the second polarity terminal 27 are respectively located on two opposite sides of the battery cell 2. In other embodiments, the first polarity terminal 26 and the second polarity terminal 27 may also be on the same side, as shown in fig. 2.
Referring to fig. 3, the first water flow channel 3 is hollow, one end of the first water flow channel is closed, the other end of the first water flow channel is provided with an opening, i.e., a water inlet 31, the first water flow channel 3 is provided with a plurality of first sockets 32, and the first sockets 32 are distributed on the first water flow channel in a row and correspond to the plugs of the electric core 2. A sealing ring (not shown) is arranged in the first socket, the plug connector is inserted into the socket, and the sealing ring plays a role in sealing and water proofing.
Referring to fig. 4, the first water flow channel 3 and the second water flow channel 4 are disposed on a flat plate, and the water inlet 31 and the water outlet 41 are distributed on the same side of the flat plate, in other embodiments, the water inlet 31 and the water outlet 41 may be distributed on different sides of the flat plate. It can be understood that the first and second water flow passages 3 and 4 are provided on one flat plate, increasing the stability of the battery module.
The invention further provides a battery pack which comprises at least two battery modules which are stacked or arranged side by side.
The invention further provides an energy storage system. The energy storage system comprises the battery pack. 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 battery module characterized by comprising:
a housing;
the battery cell comprises a first polarity terminal and a second polarity terminal, a heat superconducting pipeline and a refrigerant channel are arranged on the first side surface of the battery cell shell, heat transfer working media are filled in the heat superconducting pipeline, and plug connectors protruding out of the shell are arranged at two ends of the refrigerant channel;
the water flow channel is hollow, one end of the water flow channel is closed, the other end of the water flow channel is provided with a water inlet or a water outlet, the water flow channel is provided with a socket corresponding to the plug connector, and the square battery cell is plugged in the water flow channel.
2. The battery module according to claim 1, wherein a thermal superconducting pipeline and a coolant channel are arranged on the second side surface of the cell casing, the thermal superconducting pipeline is filled with a heat transfer working medium, and two ends of the coolant channel are provided with plug connectors protruding out of the casing.
3. The battery module according to claim 2, wherein the coolant channel surrounds the thermal superconducting conduit in a U-shape.
4. The battery module of claim 3, wherein the first and second polarity terminals are located on opposite sides of the cell.
5. The battery module of claim 3, wherein the first and second polarity terminals are on the same side of the cell.
6. The battery module according to claim 4 or 5, characterized in that a flexible insulating layer is arranged between the battery cores and is used for buffering and insulating.
7. The battery module as set forth in claim 6, wherein the socket has a sealing ring therein, and the sealing ring plays a role of sealing and waterproofing when the plug is inserted into the plug.
8. The battery module according to claim 7, wherein the water flow channel is provided on a flat plate to serve as a stabilizing module.
9. A battery pack comprising at least two battery modules according to any one of claims 1 to 8 stacked or arranged side by side.
10. An energy storage system, comprising the battery pack of claim 9, wherein the energy storage system is a wind power energy storage system, a solar energy storage system, or a grid energy storage system.
CN202111651634.XA 2021-12-31 2021-12-31 Battery module, battery package and energy storage system Pending CN114221071A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202111651634.XA CN114221071A (en) 2021-12-31 2021-12-31 Battery module, battery package and energy storage system
PCT/CN2022/139767 WO2023125085A1 (en) 2021-12-31 2022-12-16 Battery module, battery pack, and energy storage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111651634.XA CN114221071A (en) 2021-12-31 2021-12-31 Battery module, battery package and energy storage system

Publications (1)

Publication Number Publication Date
CN114221071A true CN114221071A (en) 2022-03-22

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Country Status (2)

Country Link
CN (1) CN114221071A (en)
WO (1) WO2023125085A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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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CN103219558B (en) * 2012-01-18 2016-12-14 格朗吉斯铝业（上海）有限公司 Temperature of powered cell adjusting means and manufacture method thereof
CN208157586U (en) * 2018-04-24 2018-11-27 江苏敏安电动汽车有限公司 The radiator and battery modules of battery modules
CN111490186A (en) * 2019-01-28 2020-08-04 深圳市嘉名科技有限公司 Lithium battery and lithium battery packaging shell
CN111490308A (en) * 2019-01-28 2020-08-04 深圳市嘉名科技有限公司 Heat conduction device of energy storage/power battery pack
CN110567301A (en) * 2019-08-23 2019-12-13 深圳市嘉名科技有限公司 Heat dissipation plate and manufacturing method thereof
CN216903104U (en) * 2021-12-31 2022-07-05 重庆三峡时代能源科技有限公司 Multi-column battery pack and energy storage system
CN114221064A (en) * 2021-12-31 2022-03-22 汉光热工科创中心(深圳)有限公司 Multi-column battery pack and energy storage system
CN114221071A (en) * 2021-12-31 2022-03-22 汉光热工科创中心(深圳)有限公司 Battery module, battery package and energy storage system
CN217468620U (en) * 2021-12-31 2022-09-20 重庆三峡时代能源科技有限公司 Battery module, battery package and energy storage system

Cited By (1)

* Cited by examiner, † Cited by third party
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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