CN111446519A - Lithium ion battery with internal heating device - Google Patents
Lithium ion battery with internal heating device Download PDFInfo
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- CN111446519A CN111446519A CN201910043020.XA CN201910043020A CN111446519A CN 111446519 A CN111446519 A CN 111446519A CN 201910043020 A CN201910043020 A CN 201910043020A CN 111446519 A CN111446519 A CN 111446519A
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
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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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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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
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
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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
- H01M10/65—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
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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
- H01M10/65—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
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention belongs to the field of heating of lithium ion batteries, and particularly relates to an ion battery with an internal heating device. The method is characterized in that: the battery comprises a battery body, a first battery cell lug and a second battery cell lug, wherein the battery body is internally provided with a battery cell, the upper end of the battery cell is provided with the first battery cell lug and the second battery cell lug which are respectively connected with the battery cell, a heat production device is arranged in the battery cell and comprises a first layer of heating sheet, the first layer of heating sheet is respectively connected with the first layer of heating sheet first lug and the first layer of heating sheet second lug which extend out of the battery cell, and a control switch consists of a first control switch and a second control switch; the external device and the second control switch form a first branch circuit, the first battery core lug, the battery core and the second battery core lug form a second branch circuit, and the first layer of heating plate first lug, the first layer of heating plate second lug and the first control switch form a third branch circuit. The invention has the advantages of quick charging and high safety, and can improve the working performance of the battery at low temperature.
Description
Technical Field
The invention belongs to the field of heating of lithium ion batteries, and particularly relates to an ion battery with an internal heating device.
Background
Lithium ion batteries include liquid, semi-solid, and solid lithium ion batteries. Most lithium ion batteries have poor high-current charge and discharge capacity due to the SEI film, surface charge transfer impedance, poor diffusion of lithium ions in electrodes and the like in a low-temperature environment, so that the rate and power performance are limited.
Therefore, it is important to improve the low-temperature performance of the battery by using the auxiliary means, and an alternating current heating method, a peltier heating method, a hot plate heating method, a fluid heating method, a jacket heating method, and the like have been proposed. However, in the heating methods, such as chinese patent (a self-heating device and method for lithium ion battery, CN104282965A), a power supply is additionally provided to supply power to the heating wire, and the heating time is about 10min, and the heating speed is very slow. In addition, the energy consumption of the heating methods is large, and is about 20% on average, so that the popularization and the application of the lithium ion battery are also limited.
Meanwhile, how to dynamically detect the internal temperature of the lithium ion battery is also an important use problem, which is an important parameter related to the safety control of the lithium ion battery. The current research is relatively mature, but the detection device has higher cost and is not beneficial to wide-range use.
Therefore, there is a need to develop a high performance lithium ion battery with both temperature detection and regulation capabilities: under a normal working state, the temperature inside the lithium ion battery cell can be detected in real time; when low temperature operation is required (e.g. charging or discharging), the temperature of the battery is rapidly increased in a controlled manner within a short time (<5min) to exhibit normal electrical performance. Therefore, the working temperature in the lithium ion battery can be dynamically monitored, the working performance at low temperature can be improved, the temperature range of the use environment of the lithium ion battery is widened, and the popularization and application of the lithium ion battery are promoted.
Disclosure of Invention
In order to solve the technical problems, the invention provides an ion battery with an internal heating device, which has the advantages of quick charging, high safety and capability of improving the working performance of the battery at low temperature.
The technical scheme of the invention is as follows:
A lithium ion battery with an internal heating device is provided with a battery core (1) inside, the upper end of the battery core (1) is provided with a first battery core tab (11) and a second battery core tab (12), the first battery core tab (11) and the second battery core tab (12) are respectively connected with the battery core (1), a heat generating device (2) is arranged inside the battery core (1), the heat generating device (2) comprises a first layer of heating sheets (2-1), the first layer of heating sheets (2-1) is respectively connected with a first layer of heating sheet first tab (21) extending out of the battery core, the first layer of heating sheets is connected with a second tab (22), the first temperature collector (3) is arranged inside the battery core, the second temperature collector (4) is arranged on the surface of the battery, the control switch (5) can receive signals of the first temperature collector (3) and the second temperature collector (4), and the control switch (5) consists of a first control switch (51) and a second control switch (52); the external device and the second control switch (52) form a first branch circuit, the first battery cell lug (11), the battery cell (1) and the second battery cell lug (12) form a second branch circuit, and the first layer of heating sheet first lug (21), the first layer of heating sheet (2-1), the first layer of heating sheet second lug (22) and the first control switch (51) form a third branch circuit; the second branch can be respectively connected with the first branch and the third branch in series, or the second branch is connected with the third branch in parallel and then connected with the first branch in series.
Further, when the second branch can be connected in series with the first branch and the third branch, respectively, the external device is a load (6).
Further, when the second branch and the third branch are connected in parallel and then connected in series with the first branch, the external device is a charging device (7).
Furthermore, the first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the first control switch (51), and the first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the second control switch (52).
Further, the battery cell is of a winding type or a laminated type.
Further, the battery is a square or cylindrical battery.
Further, the battery is a liquid, semi-solid or solid lithium ion battery.
Further, the heat production device (2) comprises a second layer of heating sheets (2-2), the second layer of heating sheets (2-2) are respectively connected with a second layer of heating sheet first lug (23) and a second layer of heating sheet second lug (24) extending out of the battery core, the second layer of heating sheet first lug (23), the second layer of heating sheets (2-2), the second layer of heating sheet second lug (24) and a third control switch form a fourth branch, and the fourth branch can be connected with the third branch in series or in parallel to form a common branch; the second branch can be respectively connected with the first branch and the common branch in series, or the second branch is connected with the common branch in series after being connected with the common branch in parallel.
Further, the heat generating device is made of metal or inorganic non-metal material capable of generating joule heat.
Furthermore, the first temperature collector (3) is a thermocouple or a thermistor, and the second temperature collector (4) is a thermocouple or a thermistor.
The invention has the beneficial effects that:
(1) Through the heat compensation of the heat generating device, the temperature applicability of the lithium ion battery can be improved, particularly the low-temperature environment adaptability is improved, the charge and discharge performance of the lithium ion battery is exerted to a relatively high level in a wider temperature range, and compared with the lithium ion battery in the prior art at minus 30 ℃, the discharge capacity of 1C multiplying power is increased by nearly one time when the temperature of the lithium ion battery is increased from minus 30 ℃ to 30 ℃.
(2) Through temperature collector and heat production device, can the inside temperature of dynamic detection lithium ion battery working process in electric core, when being higher than safe temperature (like 55 ℃), in time adjust lithium ion battery operating condition, guarantee the security, when being less than predetermined temperature (like 30 ℃), can in time start the heating program again, guarantee good operating condition, promptly in suitable temperature range, show improvement lithium ion battery electric capacity and charge speed.
Drawings
FIG. 1 is a schematic diagram of a lithium ion battery;
FIG. 2 is a schematic diagram of the connection of a lithium ion battery under load;
FIG. 3 is a schematic front view of a single layer assembly of a heat generating device of a lithium ion battery;
3 FIG. 3 4 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 3 3; 3
FIG. 5 is a schematic diagram of a heat generating device of a lithium ion battery assembled in a double layer;
FIG. 6 is a schematic top view of a double-layer assembly of a heat-generating device of a lithium-ion battery;
FIG. 7 is a schematic cross-sectional view taken along line B-B in FIG. 5;
FIG. 8 is a schematic diagram of a loaded circuit connection for a single layer assembly of a lithium ion battery heat generating device;
FIG. 9 is a schematic diagram of the electrical connection of a charging device with a single-layer assembly of a lithium ion battery heat generating device;
Wherein, 1: cell, 11: first cell tab, 12: second electric core utmost point ear, 2: heat-generating device, 2-1: first layer heating plate, 2-2: second-layer heating sheet, 21: first layer heater sheet first tab, 22: first layer heating plate second utmost point ear, 23: the second layer of heating sheet is a first tab. 24: second layer heating plate second utmost point ear, 3: first temperature collector, 4: second temperature collector, 5: control switch, 51: first control switch, 52: second control switch, 6: load, 7: a charging device.
Detailed Description
The invention is further described with reference to fig. 1-9.
Example 1
As shown in fig. 1-4 and 8-9, a lithium ion battery with an internal heating device, where a battery core (1) is disposed inside the battery, a first battery tab (11) and a second battery tab (12) are disposed at an upper end of the battery core (1), the first battery tab (11) and the second battery tab (12) are respectively connected to the battery core (1), a heat generating device (2) is disposed inside the battery core (1), the heat generating device (2) includes a first layer of heating sheets (2-1), the first layer of heating sheets (2-1) are respectively connected to a first layer of heating sheet first tab (21) and a first layer of heating sheet second tab (22) extending out of the battery core, a first temperature collector (3) is disposed inside the battery core, a second temperature collector (4) is disposed on a surface of the battery, and a control switch (5) can receive the first temperature collector (3), The signal of the second temperature collector (4), the control switch (5) is composed of a first control switch (51) and a second control switch (52); a first branch circuit is formed by an external device and a second control switch (52), a second branch circuit is formed by a first battery cell lug (11), a battery cell (1) and a second battery cell lug (12), and a third branch circuit is formed by a first layer of heating sheet first lug (21), a first layer of heating sheet (2-1), a first layer of heating sheet second lug (22) and a first control switch (51). The heat generating device is made of metal or inorganic non-metal material capable of generating joule heat. The first temperature collector (3) is a thermocouple or a thermistor, and the second temperature collector (4) is a thermocouple or a thermistor. The battery core is of a winding type or a laminated type. The battery is a square or cylindrical battery. The battery is a liquid, semi-solid or solid lithium ion battery. When the heat generating device is assembled in a single-layer structure as shown in fig. 3 to 4, the heat generating device 2 is placed at 1/2 of the thickness direction of the lithium ion battery.
When the lithium ion battery is required to normally supply power to the load or supply power to the heating device to obtain temperature rise, the second branch circuit can be respectively connected with the first branch circuit and the third branch circuit in series, and the external device is a load (6). The first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the first control switch (51), and the first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the second control switch (52). The working process is as follows: and detecting temperature values by using a first temperature collector and a second temperature collector, wherein the temperature detection point of the battery core is a preset temperature (namely T1 is equal to 30 ℃), and the alarm point is a safe temperature (namely T2 is equal to 55 ℃). Before the battery cell is ready to do work on the load, detecting a temperature value of the battery cell through a first temperature collector and a second temperature collector, if the collected temperature is lower than a preset temperature, generating a signal by the first temperature collector and the second temperature collector, sending the signal to a first control switch, closing the first control switch, generating heat by a first layer of heating sheets, and increasing the temperature of the battery cell; when the temperature of the battery core is higher than or equal to the preset temperature, the first temperature collector and the second temperature collector generate signals and send the signals to the first control switch, so that the first control switch is switched off, the second control switch is switched on, heating is stopped, and power is supplied to a load; if the battery core temperature is higher than the safe temperature in the process of supplying power to the load, the first temperature collector and the second temperature collector generate signals and send the signals to the second control switch, so that the second control switch is switched off, and the power supply to the load is stopped. Through the adjustment, the service performance and the safety performance of the lithium ion battery are improved.
Example 2
The charging device supplies power to the lithium ion battery and the heat generating device, the second branch circuit and the third branch circuit are connected in parallel and then connected in series with the first branch circuit, and the external device is a charging device (7). The first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the first control switch (51), and the first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the second control switch (52). The rest is the same as in example 1. The working process is as follows: and detecting temperature values by using a first temperature collector and a second temperature collector, wherein the temperature detection point of the battery core is a preset temperature (namely T1 is equal to 30 ℃), and the alarm point is a safe temperature (namely T2 is equal to 55 ℃). When the charging device is ready to charge the lithium ion battery core, the first temperature collector and the second temperature collector collect the temperature of the battery core, if the collected temperature is lower than the preset temperature, the first temperature collector and the second temperature collector generate signals and send the signals to the first control switch and the second control switch, so that the first control switch and the second control switch are closed, and the first heating plate heats the battery core; when the first temperature collector and the second temperature collector detect that the temperature of the battery core is greater than or equal to the preset temperature, the first temperature collector and the second temperature collector generate signals and send the signals to a first control switch (51), so that the first control switch is switched off, and the first heating plate stops heating; in the process that the charging device charges the battery cell, when the first temperature collector and the second temperature collector detect that the temperature of the battery cell is higher than the safe temperature, the first temperature collector and the second temperature collector generate signals and send the signals to the second control switch, so that the second control switch is switched off, and the charging device stops supplying power to the battery cell.
Example 3
The heat production device (2) comprises a second layer of heating sheets (2-2), the second layer of heating sheets (2-2) are respectively connected with a first lug (23) of the second layer of heating sheets and a second lug (24) of the second layer of heating sheets, which extend out of the battery core, the first lug (23) of the second layer of heating sheets, the second layer of heating sheets (2-2), the second lug (24) of the second layer of heating sheets and a third control switch form a fourth branch, and the fourth branch can be connected with the third branch in series or in parallel to form a common branch; the second branch can be respectively connected with the first branch and the common branch in series, or the second branch is connected with the common branch in series after being connected with the common branch in parallel.
When the heat generating device is assembled in a double structure as shown in fig. 5 to 7, the heat generating device 2 is placed at 1/4 of the thickness direction of the lithium ion battery.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a take internal heating device's lithium ion battery which characterized in that: the battery is internally provided with a battery core (1), the upper end of the battery core (1) is provided with a first battery core tab (11) and a second battery core tab (12), the first battery core tab (11) and the second battery core tab (12) are respectively connected with the battery core (1), the battery core (1) is internally provided with a heat generating device (2), the heat generating device (2) comprises a first layer of heating sheets (2-1), the first layer of heating sheets (2-1) is respectively connected with a first layer of heating sheet first tab (21) extending out of the battery core, the first layer of heating sheets is connected with a second tab (22), the first temperature collector (3) is arranged inside the battery core, the second temperature collector (4) is arranged on the surface of the battery, the control switch (5) can receive signals of the first temperature collector (3) and the second temperature collector (4), and the control switch (5) consists of a first control switch (51) and a second control switch (52); the external device and the second control switch (52) form a first branch circuit, the first battery cell lug (11), the battery cell (1) and the second battery cell lug (12) form a second branch circuit, and the first layer of heating sheet first lug (21), the first layer of heating sheet (2-1), the first layer of heating sheet second lug (22) and the first control switch (51) form a third branch circuit; the second branch can be respectively connected with the first branch and the third branch in series, or the second branch is connected with the third branch in parallel and then connected with the first branch in series.
2. The lithium ion battery with internal heating device of claim 1, wherein: when the second branch can be respectively connected with the first branch and the third branch in series, the external device is a load (6).
3. The lithium ion battery with internal heating device of claim 1, wherein: when the second branch circuit and the third branch circuit are connected in parallel and then are connected in series with the first branch circuit, the external device is a charging device (7).
4. A lithium ion battery with internal heating according to claim 1, 2 or 3, characterized in that: the first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the first control switch (51), and the first temperature collector (3) and the second temperature collector (4) can respectively control the opening and closing of the second control switch (52).
5. The lithium ion battery with internal heating device of claim 1, wherein: the battery core is of a winding type or a laminated type.
6. The lithium ion battery with internal heating device of claim 1, wherein: the battery is a square or cylindrical battery.
7. The lithium ion battery with internal heating device of claim 1, wherein: the battery is a liquid, semi-solid or solid lithium ion battery.
8. The lithium ion battery with internal heating device of claim 1, wherein: the heat generating device (2) comprises a second layer heating sheet (2-2), the second layer heating sheet (2-2) is respectively connected with a first lug (23) of the second layer heating sheet and a second lug (24) of the second layer heating sheet extending out of the battery core, the first lug (23) of the second layer heating sheet, the second layer heating sheet (2-2), the second lug (24) of the second layer heating sheet and a third control switch form a fourth branch, and the fourth branch can be connected with the third branch in series or in parallel to form a common branch. The second branch can be respectively connected with the first branch and the common branch in series, or the second branch is connected with the common branch in series after being connected with the common branch in parallel.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043020.XA CN111446519A (en) | 2019-01-17 | 2019-01-17 | Lithium ion battery with internal heating device |
| KR1020207011607A KR102308268B1 (en) | 2019-01-17 | 2019-01-28 | Lithium-ion battery with internal heating |
| US16/760,099 US11342606B2 (en) | 2019-01-17 | 2019-01-28 | Lithium ion battery with an internal heating device |
| EP19872260.5A EP3713008A4 (en) | 2019-01-17 | 2019-01-28 | Lithium ion battery having internal heating device |
| JP2020523266A JP2021514518A (en) | 2019-01-17 | 2019-01-28 | Lithium-ion battery with internal heating device |
| PCT/CN2019/073341 WO2020147148A1 (en) | 2019-01-17 | 2019-01-28 | Lithium ion battery having internal heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043020.XA CN111446519A (en) | 2019-01-17 | 2019-01-17 | Lithium ion battery with internal heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111446519A true CN111446519A (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910043020.XA Pending CN111446519A (en) | 2019-01-17 | 2019-01-17 | Lithium ion battery with internal heating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111446519A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510296A (en) * | 2020-11-30 | 2021-03-16 | Oppo广东移动通信有限公司 | Battery assembly, heating method thereof and electronic equipment |
| CN114497817A (en) * | 2022-01-19 | 2022-05-13 | 东莞新能德科技有限公司 | Battery and heating method thereof |
| WO2023178550A1 (en) * | 2022-03-23 | 2023-09-28 | 东莞新能安科技有限公司 | Battery pack, battery heating method, and electronic device |
| CN116936943A (en) * | 2023-09-15 | 2023-10-24 | 海目星激光科技集团股份有限公司 | Cell heating device and method |
-
2019
- 2019-01-17 CN CN201910043020.XA patent/CN111446519A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510296A (en) * | 2020-11-30 | 2021-03-16 | Oppo广东移动通信有限公司 | Battery assembly, heating method thereof and electronic equipment |
| CN112510296B (en) * | 2020-11-30 | 2023-08-11 | Oppo广东移动通信有限公司 | Battery assembly, heating method thereof and electronic equipment |
| CN114497817A (en) * | 2022-01-19 | 2022-05-13 | 东莞新能德科技有限公司 | Battery and heating method thereof |
| WO2023178550A1 (en) * | 2022-03-23 | 2023-09-28 | 东莞新能安科技有限公司 | Battery pack, battery heating method, and electronic device |
| CN116936943A (en) * | 2023-09-15 | 2023-10-24 | 海目星激光科技集团股份有限公司 | Cell heating device and method |
| CN116936943B (en) * | 2023-09-15 | 2023-12-19 | 海目星激光科技集团股份有限公司 | Cell heating device and method |
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