CN109428137A - Secondary battery and battery module - Google Patents
Secondary battery and battery module Download PDFInfo
- Publication number
- CN109428137A CN109428137A CN201710760387.4A CN201710760387A CN109428137A CN 109428137 A CN109428137 A CN 109428137A CN 201710760387 A CN201710760387 A CN 201710760387A CN 109428137 A CN109428137 A CN 109428137A
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- Prior art keywords
- conductive
- piece
- secondary cell
- heater
- heating
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Classifications
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- 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
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
-
- 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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- 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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a secondary battery and a battery module, the secondary battery includes: the battery comprises a shell, at least one battery cell, a top cover assembly, a conductive heating sheet and a conductive connecting sheet. The top cap assembly includes: a top cover sheet; the positive pole column is arranged on the top cover plate; and the negative pole post is arranged on the top cover plate. The conductive heating plate is arranged in the shell. The conductive heating sheet is connected to the cathode pole of the top cover assembly, and the conductive connecting sheet is connected to the anode pole of the top cover assembly and is in controlled conductive contact with the conductive heating sheet. When the conductive connection piece is in conductive contact with the conductive heating piece, the positive pole post, the conductive connection piece, the conductive heating piece and the negative pole post form a complete loop, current can be generated on the loop, joule heat is generated when the current flows through the conductive heating piece, the temperature of the conductive heating piece is increased, the heat can be transmitted to each electric core, each electric core is heated in the shell, and the heating rate is high and the heating efficiency is high. In addition, the secondary battery of the present invention has a simple structure and a reduced cost.
Description
Technical field
The present invention relates to battery technology field more particularly to a kind of secondary cell and battery modules.
Background technique
Performance is greatly reduced lithium ion battery at low temperature and charging has analysis lithium risk under low temperature, so lithium ion battery
Need to have the ability quickly heated.The heating method of usual lithium ion battery has: outside heating, such as heating film, hydro-thermal etc.；
And internal heating, such as pulse charge and discharge electric heating, the heating of built-in heating sheet.External heating method is since heat transmission resistance is big, electricity
The pond rate of heat addition is slow；Existing internal heating method, such as pulse charge and discharge Electric heating, due to needing charge and discharge auxiliary to set
It is standby, it is at high cost.
Currently, EC-Power company is improved for the heating method of above-mentioned lithium ion battery, technical solution are as follows:
It is also newly-increased in addition to original two output and input the pole for internal battery core itself on the coping plate of lithium ion battery
Two poles (there are four poles for setting i.e. on coping plate), and heating sheet is built in the shell of lithium ion battery, heating sheet
Be electrically connected by two newly-increased poles with external power supply, thus external power supply, two newly-increased poles and heating sheet it
Between form complete circuit.When the electric current generated on circuit passes through heating sheet, heating sheet generates Joule heat, thus in heated shell
The battery core in portion.Due to the program need on the coping plate of lithium ion battery increase newly two poles, increase so entire lithium from
The complexity of sub- battery, improves cost.
Summary of the invention
In view of the problems in the background art, it is an object of the present invention to provide a kind of secondary cell and battery moulds
Group can heat battery core inside secondary cell, and the rate of heat addition is fast, heating efficiency is high.
Another object of the present invention is to the structure of secondary cell can be made simple for a kind of secondary cell and battery modules
And cost reduces.
To achieve the goals above, in a first aspect, the present invention provides a kind of secondary cells comprising: shell, at least
One battery core, cap assembly, conductive heater piece and conductive connecting piece.
At least one battery core is contained in shell and each battery core has anode and cathode.Cap assembly is assemblied in shell, comprising:
Coping plate；Positive Poles are set to coping plate and are electrically connected to the anode of each battery core；And negative pole, it is set to coping plate
And it is electrically connected to the cathode of each battery core.Conductive heater piece is set in shell.
Wherein, conductive heater piece is connected to the negative pole of cap assembly, and conductive connecting piece is being connected to cap assembly just
Pole pole and with the controlled conductive contact of conductive heater piece.
In second aspect, the present invention provides a kind of battery modules comprising: described at least two first aspect present invention
Secondary cell；And controller, the heater for controlling all secondary cells simultaneously is heating up or cools down.
Beneficial effects of the present invention are as follows:
In the secondary battery in accordance with the present invention, since conductive connecting piece is connected to Positive Poles, the conduction of cap assembly
Heating sheet is connected to the negative pole of cap assembly, thus when conductive connecting piece and conductive heater piece conductive contact, top cover group
Positive Poles, negative pole one complete loops of formation of conductive connecting piece, conductive heater piece and cap assembly of part, circuit
On can generate electric current, electric current generates Joule heat when flowing through conductive heater on piece, and then conductive heater piece temperature increases, and heat can pass
It is delivered in each battery core, thus heats each battery core inside housings, and the rate heated is fast, heating efficiency is high.In addition, this and background
Newly-increased two poles on coping plate are used in technology and two poles by increasing newly are electric by conductive heater piece and external power supply
The mode of connection is compared, and secondary cell of the invention is not necessarily to newly-increased two poles as the prior art, therefore of the invention secondary
The structure of battery is simpler, reduces costs.
Detailed description of the invention
Fig. 1 is the perspective view of secondary cell according to the present invention, wherein controller is not shown.
Fig. 2 is the sectional view after the line A-A cutting in Fig. 1.
Fig. 3 is the variation of Fig. 2.
Fig. 4 is the battery core of the enclosure interior of secondary cell of the invention and the positional diagram of conductive heater piece.
Fig. 5 is the variation of Fig. 4.
Fig. 6 is the main view of the conductive heater piece in Fig. 5.
Fig. 7 is the temperature rise curve simulation result of the battery core of secondary cell of the invention in one embodiment.
Fig. 8 is the connection relationship diagram between the heater and controller of secondary cell of the invention.
Fig. 9 is the connection relationship diagram between the heater and controller of each secondary cell in battery modules of the invention.
Wherein, the reference numerals are as follows:
1 secondary cell, 141 main part
11 shell, 1411 edge
12 battery core, 142 first connecting portion
121 positive 143 second connecting portions
122 cathode, 15 conductive connecting piece
13 cap assembly, 16 heater
131 coping plate C controllers
132 Positive Poles V1 control switches
133 negative pole V2 control switches
14 conductive heater piece, 17 switching piece
Specific embodiment
It is described in detail secondary cell according to the present invention and battery modules with reference to the accompanying drawings.
Illustrate the secondary cell 1 of first aspect present invention first.
Referring to figs. 1 to Fig. 8, secondary cell 1 according to the present invention includes: shell 11, at least one battery core 12, cap assembly
13, conductive heater piece 14 and conductive connecting piece 15.
At least one battery core 12 is contained in shell 11 and each battery core 12 has anode 121 and cathode 122.Cap assembly 13 fills
Assigned in shell 11, comprising: coping plate 131；Positive Poles 132 are set to coping plate 131 and are electrically connected to the anode of each battery core 12
121；And negative pole 133, it is set to coping plate 131 and is electrically connected to the cathode 122 of each battery core 12.Conductive heater piece 14 is set
It is placed in shell 11.
Wherein, conductive heater piece 14 is connected to the negative pole 133 of cap assembly 13, and conductive connecting piece 15 is connected to top cover
The Positive Poles 132 of component 13 and with the controlled conductive contact of conductive heater piece 14.
In secondary cell 1 according to the present invention, since conductive connecting piece 15 is connected to the Positive Poles of cap assembly 13
132, conductive heater piece 14 is connected to the negative pole 133 of cap assembly 13, thus when conductive connecting piece 15 and conductive heater piece
When 14 conductive contact, Positive Poles 132, conductive connecting piece 15, conductive heater piece 14 and the cap assembly 13 of cap assembly 13
Negative pole 133 form a complete loops, electric current can be generated on circuit, generated when electric current flows through on conductive heater piece 14 burnt
It has burning ears, and then 14 temperature of conductive heater piece increases, heat can be transmitted in each battery core 12, and each electricity is thus heated inside shell 11
Core 12, and the rate heated is fast, heating efficiency is high.In addition, this in background technique using on coping plate 131 increase newly two poles
Column and two newly-increased poles by conductive heater piece 14 by way of external power supply electrical connection compared with, secondary electricity of the invention
Pond 1 is not necessarily to increase two poles newly as the prior art, therefore the structure of secondary cell 1 of the invention is simpler, reduces costs.
Referring to figs. 1 to Fig. 3, secondary cell 1 may also include that heater 16, be set to outside the coping plate 131 of cap assembly 13
Portion, for shrinking the heating of conductive connecting piece 15 expansion and cooling to control between conductive connecting piece 15 and conductive heater piece 14
Conductive contact.
Specifically, when heater 16 is heating up, 15 expanded by heating of conductive connecting piece is to conductive contact conductive heater
Piece 14, and when the cooling of heater 16 (can be natural cooling cooling or environmental stimuli cooling), the cooling of conductive connecting piece 15 is received
Contracting is to disconnect the conductive contact between conductive heater piece 14.Wherein, heater 16 is generally disposed at the close of coping plate 131
At the upper surface of conductive connecting piece 15, is conducive to heater 16 in this way and conductive connecting piece 15 quickly carries out heat exchange, to have
Help improve the rate of heat addition and heating efficiency.
Referring to fig. 4 to fig. 6, conductive heater piece 14 can include main part 141；First connecting portion 142, is formed in main part
141 and with the controlled conductive contact of conductive connecting piece 15；And second connecting portion 143, it is formed in main part 141 and is connected to top cover
The negative pole 133 of component 13.
It remarks additionally herein, when assembling secondary cell 1 of the invention, needs to guarantee the of conductive heater piece 14
One interconnecting piece 142 is close with conductive connecting piece 15 but not in contact with being convenient for the conductive connecting piece when heater 16 is heating up in this way
15 expanded by heating contact rapidly with first connecting portion 142, to realize the quick heat treatment to each battery core 12, improve heating speed
Rate and heating efficiency.
In one embodiment, referring to Fig. 4, the main part 141 of conductive heater piece 14 can be rectangle, 142 He of first connecting portion
Second connecting portion 143 is spaced the same edge 1411 towards coping plate 131 for being formed in main part 141.Conductive heater piece 14
This structure is simple, convenient for molding.
In another embodiment, referring to Fig. 5, the main part 141 of conductive heater piece 14 can be continuous reciprocating bending word
Shape structure, first connecting portion 142 and second connecting portion 143 are respectively formed in the both ends of main part 141, and first connecting portion 142
Coping plate 131 is both faced towards with second connecting portion 143.The resistance of the conductive heater piece 14 of this structure is smaller, improves conductive add
The conveyance capacity of backing 14, while having saved material.Further, since the size of current flowed through in each section of conductive heater piece 14
Unanimously, thus each section heat production of conductive heater piece 14 it is uniform, convenient for control conductive heater piece 14 to the heating of each battery core 12 speed
Rate.
The second connecting portion 143 of conductive heater piece 14 can be ultrasonically welded at the negative pole 133 of cap assembly 13, but not only
It is limited to the connection type of ultrasonic welding.In order to guarantee the conduction and heating conduction of conductive heater piece 14, conductive heater piece 14 is general
It can be nickel sheet, steel disc or graphite synusia, wherein the thickness of conductive heater piece 14 can be 0.05mm.
In one embodiment, referring to Fig. 2, conductive connecting piece 15 can directly be contacted with the Positive Poles 132 of cap assembly 13
Connection.In another embodiment, referring to Fig. 3, secondary cell 1 may also include that switching piece 17, for making the anode of cap assembly 13
Together with pole 132 is indirectly connected with conductive heater piece 14.Wherein, one end of switching piece 17 can be ultrasonically welded at cap assembly 13
Positive Poles 132, the other end of switching piece 17 is ultrasonically welded at conductive heater piece 14, so that Positive Poles 132 are via switching
Piece 17 is connected to conductive heater piece 14.
Conductive connecting piece 15 can control for the different bimetallic strip of thermal expansion coefficient, linearity temperature range-
Between 20~+180 DEG C.It further, is dilval close to one layer of sheet metal of coping plate 131, thermal expansion coefficient is small；It leans on
One layer of sheet metal of nearly battery core 12 is monel, and thermal expansion coefficient is big, to lead when 15 expanded by heating of conductive connecting piece
One layer of sheet deformation of the close battery core 12 of electric connecting sheet 15 is more severe, is conducive to conductive connecting piece 15 and adds with conduction rapidly
142 conductive contact of first connecting portion of backing 14, improves the rate of heat addition and heating efficiency.In addition, conductive connecting piece 15 is not only
It is limited to the bimetallic strip of said combination, can also is other combined bimetallic strips.
In secondary cell 1 according to the present invention, when battery core 12 is one, conductive heater piece 14 may be disposed at battery core 12
Any big face outside.When battery core 12 is more than two, it is provided with conductive heater piece 14 between two neighboring battery core 12,
So that all battery cores 12 in shell 11 can be heat treatment.
In secondary cell 1 according to the present invention, coping plate 131 can be made of metal material.Heater 16 can be Paar
Patch (a kind of well known commercially available component, external material can be ceramics).Since Paar patch quickly can be heated or be made
It is cold, the rate of heat addition and heating efficiency to each battery core 12 can be greatly improved.
When needing to heat battery core 12, the heatable heating of Paar patch becomes heat source, and heat is transmitted to by coping plate 131
On conductive connecting piece 15,15 expanded by heating of conductive connecting piece deformation and with 14 conductive contact of conductive heater piece, thus play heating
The effect of each battery core 12.And when needing to stop heating, Paar patch can cool as cold source, so that conductive connecting piece 15
Temperature quickly reduce, conductive connecting piece 15 cooling shrink, eliminating deformation, thus by conductive connecting piece 15 and conductive heater piece 14
Between electrical connection disconnect.
Referring to Fig. 8, secondary cell 1 may also include that controller C, and for controlling, heater 16 is heating up or cooling.Its
In, when controller C applies forward voltage to heater 16, heater 16 is heating up；When controller C applies to heater 16
When backward voltage, the fever cooling of heater 16.
It remarks additionally herein, controller C can make secondary cell 1 of the invention by two control switches V1 and V2
16 controlled connection forward voltage of heater or backward voltage, as shown in Figure 8.When connecting control switch V1, closure V2, control
Device C applies forward voltage (such as positive 12V voltage) to heater 16；When being closed control switch V1, connecting V2, controller C is to hair
Hot body 16 applies backward voltage (such as negative 12V voltage).
It in one embodiment, include three battery cores 12 and two panels conductive heater piece 14 in secondary cell 1.The appearance of each battery core 12
Amount is 37Ah, quality 0.82kg, and the resistance of each conductive heater piece 14 is 0.78 ohm, under the voltage rating of battery core 12,
The heat release power of each conductive heater piece 14 is 17W, and total heating power of two panels conductive heater piece 14 is 34W.In initial temperature
And environment temperature is all to obtain the temperature rise curve simulation result of battery core 12 as shown in Figure 7 under conditions of -20 DEG C, it can from Fig. 7
To obtain the heating rate of battery core 12 as 1.97 DEG C/min.It is therefore seen that in secondary cell 1 of the invention, to shell 11
When internal each battery core 12 is heated, the rate of heating is fast, heating efficiency is high.
Next illustrates the battery modules of second aspect of the present invention.
Referring to Fig. 9, battery modules according to the present invention include: secondary cell described at least two first aspect present invention
1；And controller C, the heater 16 for controlling all secondary cells 1 simultaneously is heating up or cools down.
In the battery module according to the present invention, controller C is heating up by the corresponding heater 16 of control or cools down
Realize the controlled conductive contact between the conductive connecting piece 15 and conductive heater piece 14 of each secondary cell 1.When each secondary cell 1
When conductive connecting piece 15 and 14 conductive contact of conductive heater piece, the Positive Poles 132 of each secondary cell 1, are led at conductive connecting piece 15
Electric heating sheets 14 and negative pole 133 form a complete loops, can generate electric current on circuit, electric current flows through conductive heater piece
Joule heat is generated when on 14, and then 14 temperature of conductive heater piece increases, heat can be transmitted in each battery core 12, thus each secondary
Each battery core 12 is heated inside the shell 11 of battery 1, the rate of heating is fast, heating efficiency is high.In addition, in battery modules of the invention
The heaters 16 of all secondary cells 1 share a controller C, thus the structure of battery modules of the invention is simple, dismounting
It is convenient.
Further referring to figure 9, in battery modules of the invention, the heater 16 of all secondary cells 1 can be connected in series
And pass through the equal controlled connection forward voltage of controller C or backward voltage.Here, it is connected in series and is provided with conducive to controller C realization
Apply the voltage of nominal amount to each heater 16.
It remarks additionally herein, referring to Fig. 9, controller C can be made all secondary by two control switches V1 and V2
The 16 controlled connection forward voltage of heater or backward voltage of battery 1.When connecting control switch V1, closure V2, controller C is same
When to all heater 16 apply forward voltage (such as positive 12V voltage)；When being closed control switch V1, connecting V2, controller C
Apply backward voltage (such as negative 12V voltage) to all heaters 16 simultaneously.
Claims (10)
1. a kind of secondary cell (1), comprising:
Shell (11)；
At least one battery core (12), is contained in shell (11), and each battery core (12) has positive (121) and cathode (122)；
Cap assembly (13) is assemblied in shell (11), comprising:
Coping plate (131)；
Positive Poles (132) are set to coping plate (131) and are electrically connected to the anode (121) of each battery core (12)；And
Negative pole (133) is set to coping plate (131) and is electrically connected to the cathode (122) of each battery core (12)；
Conductive heater piece (14) is set in shell (11)；
It is characterized in that,
Conductive heater piece (14) is connected to the negative pole (133) of cap assembly (13)；
Secondary cell further include: conductive connecting piece (15) is connected to the Positive Poles (132) of cap assembly (13) and adds with conduction
Backing (14) controlled conductive contact.
2. secondary cell (1) according to claim 1, which is characterized in that secondary cell further include: heater (16), if
The coping plate (131) for being placed in cap assembly (13) is external, for shrinking conductive connecting piece (15) heating expansion and cooling to control
Conductive contact between conductive connecting piece (15) processed and conductive heater piece (14).
3. secondary cell (1) according to claim 1, which is characterized in that conductive heater piece (14) includes
Main part (141)；
First connecting portion (142) is formed in main part (141) and controlled connection in conductive connecting piece (15)；And
Second connecting portion (143) is formed in main part (141) and is connected to the negative pole (133) of cap assembly (13).
4. secondary cell (1) according to claim 3, which is characterized in that
The Positive Poles (132) of conductive connecting piece (15) and cap assembly (13) directly connect；Or
Secondary cell further include: switching piece (17), for making the Positive Poles (132) and conductive heater piece of cap assembly (13)
(14) it is indirectly connected with together.
5. secondary cell (1) according to claim 3, which is characterized in that
The main part (141) of conductive heater piece (14) is rectangle；
First connecting portion (142) and second connecting portion (143) interval be formed in main part (141) towards coping plate (131)
Same edge.
6. secondary cell (1) according to claim 3, which is characterized in that
The main part (141) of conductive heater piece (14) is continuous reciprocating bending shape structure；
First connecting portion (142) and second connecting portion (143) are respectively formed in the both ends of main part (141), and first connecting portion
(142) and second connecting portion (143) both faces towards coping plate (131).
7. secondary cell (1) according to claim 1, which is characterized in that conductive connecting piece (15) be thermal expansion coefficient not
Same bimetallic strip.
8. secondary cell (1) according to claim 2, which is characterized in that heater (16) is Paar patch.
9. secondary cell (1) according to claim 2, which is characterized in that secondary cell (1) further include: controller (C),
For control heater (16) it is heating up or cooling.
10. a kind of battery modules characterized by comprising
At least two secondary cells (1) of any of claims 1-8；And
Controller (C), the heater (16) for controlling all secondary cells (1) simultaneously is heating up or cools down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760387.4A CN109428137A (en) | 2017-08-30 | 2017-08-30 | Secondary battery and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760387.4A CN109428137A (en) | 2017-08-30 | 2017-08-30 | Secondary battery and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109428137A true CN109428137A (en) | 2019-03-05 |
Family
ID=65503734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710760387.4A Pending CN109428137A (en) | 2017-08-30 | 2017-08-30 | Secondary battery and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109428137A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668576A (en) * | 2020-06-24 | 2020-09-15 | 北京高鑫伟业科技有限公司 | Core heating type storage battery |
| CN112670654A (en) * | 2020-12-30 | 2021-04-16 | 北京和中普方新能源科技有限公司 | Battery module heating device and battery module |
| WO2021139654A1 (en) * | 2020-01-10 | 2021-07-15 | 比亚迪股份有限公司 | Battery, battery module, battery pack and electric vehicle |
| CN113782870A (en) * | 2021-08-19 | 2021-12-10 | 宁德新能源科技有限公司 | Electrochemical device and electric equipment |
| WO2023050923A1 (en) * | 2021-09-30 | 2023-04-06 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electric device |
| CN116387702A (en) * | 2023-06-05 | 2023-07-04 | 深圳海辰储能控制技术有限公司 | Battery pack, battery module and electric equipment |
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| CN106711551A (en) * | 2016-12-28 | 2017-05-24 | 北京新能源汽车股份有限公司 | Heating monitoring device and method for battery and battery system |
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| CN1270405A (en) * | 1999-03-31 | 2000-10-18 | 三洋电机株式会社 | Thermostat and batteries therewith inside |
| CN201994346U (en) * | 2010-12-10 | 2011-09-28 | 东莞新能源科技有限公司 | Power battery metal housing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021139654A1 (en) * | 2020-01-10 | 2021-07-15 | 比亚迪股份有限公司 | Battery, battery module, battery pack and electric vehicle |
| CN111668576A (en) * | 2020-06-24 | 2020-09-15 | 北京高鑫伟业科技有限公司 | Core heating type storage battery |
| CN112670654A (en) * | 2020-12-30 | 2021-04-16 | 北京和中普方新能源科技有限公司 | Battery module heating device and battery module |
| CN113782870A (en) * | 2021-08-19 | 2021-12-10 | 宁德新能源科技有限公司 | Electrochemical device and electric equipment |
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| CN116387702A (en) * | 2023-06-05 | 2023-07-04 | 深圳海辰储能控制技术有限公司 | Battery pack, battery module and electric equipment |
| CN116387702B (en) * | 2023-06-05 | 2023-08-18 | 深圳海辰储能控制技术有限公司 | Battery pack, battery module and electric equipment |
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Application publication date: 20190305 |