CN114267891A - Full-solid-state lithium battery charging temperature control method and system for inhibiting growth of lithium dendrite - Google Patents
Full-solid-state lithium battery charging temperature control method and system for inhibiting growth of lithium dendrite Download PDFInfo
- Publication number
- CN114267891A CN114267891A CN202111345119.9A CN202111345119A CN114267891A CN 114267891 A CN114267891 A CN 114267891A CN 202111345119 A CN202111345119 A CN 202111345119A CN 114267891 A CN114267891 A CN 114267891A
- Authority
- CN
- China
- Prior art keywords
- temperature
- battery
- solid
- charging
- state lithium
- 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.)
- Granted
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 182
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 177
- 238000000034 method Methods 0.000 title claims abstract description 61
- 210000001787 dendrite Anatomy 0.000 title claims abstract description 23
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 57
- 238000010438 heat treatment Methods 0.000 claims description 54
- 230000008569 process Effects 0.000 claims description 28
- 239000003792 electrolyte Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 238000005485 electric heating Methods 0.000 claims description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004964 aerogel Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000010406 cathode material Substances 0.000 claims description 2
- 238000005187 foaming Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 11
- 230000008859 change Effects 0.000 abstract description 7
- 239000007784 solid electrolyte Substances 0.000 abstract description 7
- 230000037427 ion transport Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000001465 metallisation Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WNLXKBDXIAGXQA-UHFFFAOYSA-N [Cl].[P].[S].[Li] Chemical group [Cl].[P].[S].[Li] WNLXKBDXIAGXQA-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a method and a system for controlling the charging temperature of an all-solid-state lithium battery for inhibiting the growth of lithium dendrite, wherein after a charging instruction is received, the temperature in a battery compartment where the all-solid-state lithium battery is positioned is raised to a preset charging temperature, and a charging circuit is switched on to start charging; after the all-solid-state lithium battery is charged, the internal temperature of the battery compartment is continuously detected, the temperature in the compartment is controlled to be above the working preset temperature, so that the solid electrolyte can keep better ion transport performance, the influence of environmental temperature change on the start of the all-solid-state lithium battery is avoided, and the ion conductivity of the all-solid-state lithium battery in a discharging stage can be improved. By controlling the temperature in stages, the working performance of the all-solid-state lithium battery is effectively improved on the basis of low energy consumption.
Description
RELATED APPLICATIONS
The invention relates to a divisional application of an application number 2021105430843, an application date of 2021, 5 months and 19 days, and an invention name of a full solid-state lithium battery temperature control method and system for inhibiting the growth of lithium dendrites.
Technical Field
The invention relates to the technical field of all-solid-state lithium batteries, in particular to a method and a system for controlling the charging temperature of an all-solid-state lithium battery for inhibiting the growth of lithium dendrites.
Background
The all-solid-state lithium battery is the mainstream trend of battery development, and compared with a commercial liquid-state lithium ion battery, the solid electrolyte used by the all-solid-state battery has the advantages of incombustibility, no corrosion, no volatilization and no leakage, so that the all-solid-state lithium battery has better safety and longer service life. In addition, an all-solid lithium battery has a higher energy density than a liquid lithium ion battery, and is therefore more suitable for use as an in-vehicle battery or an aircraft battery. However, the all-solid-state lithium battery still has some problems in practical use, firstly, the ion conductivity of the solid electrolyte is generally lower than that of the liquid electrolyte due to the limitation of the ion diffusion capacity, and the lower ion conductivity significantly affects the rate capability of the all-solid-state lithium battery. Secondly, voids are present in the solid electrolyte and lithium dendrites deposited at the negative electrode may penetrate the electrolyte, resulting in short circuit failure of the battery. Therefore, the improvement of the ion conductivity of the solid electrolyte and the reduction of the generation of lithium dendrites become problems to be solved in the development of the all-solid-state lithium battery.
The existing battery temperature control system is designed for liquid lithium ion batteries, so that the liquid lithium ion batteries need to be continuously cooled during operation in order to avoid fire risks, and the design of the temperature control system is completely different from the requirements of all-solid-state lithium batteries. Although the related studies on the influence of temperature on the performance of all-solid-state lithium batteries have been carried out in the prior art, the current studies have at least the following drawbacks:
firstly, some current researches only aim at all-solid-state lithium batteries used as vehicle-mounted batteries and aircraft batteries, and neglect temperature control of all-solid-state lithium batteries under the condition of non-severe temperature in the scene of operation at extremely low ambient temperature;
secondly, temperature compensation is only carried out before charging of the all-solid-state lithium battery is started, and temperature control in the whole charging process after charging is started is ignored;
thirdly, the prior art ignores the necessity of temperature control in the discharging process of the all-solid-state lithium battery and the non-charging and non-discharging standing state;
fourth, only a conceptual temperature control strategy for preferentially increasing the temperature of the battery working environment in a severe cold environment is proposed in the prior art, and the current research considers the charging start efficiency and the electric energy loss for heating, and correspondingly proposes a relatively typical temperature increase target value of about 15 ℃, but the temperature increase value is not measured through experiments, and the purpose of effectively inhibiting the growth of lithium dendrites cannot be achieved.
Disclosure of Invention
The invention aims to provide a method and a system for controlling the charging temperature of an all-solid-state lithium battery, which can inhibit the growth of lithium dendrites of the all-solid-state lithium battery.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a charging temperature control method for inhibiting growth of lithium dendrites of an all-solid-state lithium battery is characterized in that if an instruction for charging the all-solid-state lithium battery is received, whether the temperature in a battery compartment where the all-solid-state lithium battery is located is smaller than a first temperature threshold value is judged, and if not, a charging circuit is directly switched on; if yes, calculating a heating time value required by heating to the first temperature threshold according to a preset temperature model, heating the battery compartment until the required heating time value is reached, and switching on a charging circuit, wherein the set range of the first temperature threshold is 310K-450K.
Further, the preset temperature model is:
Further, the charging temperature control method controls the temperature in the battery compartment where the all-solid-state lithium battery is located to be greater than or equal to 330K and less than or equal to 450K, starts the charging process, and keeps the temperature in the battery compartment to be greater than or equal to 310K and less than or equal to 450K before the charging process is finished.
Further, the temperature in the battery cabin is continuously controlled not to be smaller than a second temperature threshold after the charging process is finished, and the setting range of the second temperature threshold is 280K to 450K.
Further, the setting range of the first temperature threshold is 330K to 450K.
Further, an electric heating element for heating the battery compartment and a temperature sensor for detecting the temperature in the battery compartment are arranged, after an instruction for charging the all-solid-state lithium battery is received, if the temperature value detected by the temperature sensor is lower than 310K, a circuit of the electric heating element and a power supply is switched on, and until the temperature value detected by the temperature sensor reaches 330K, the electric heating element stops working and a charging circuit is switched on.
Further, the power supply is an external power supply or the all-solid-state lithium battery in a battery compartment, wherein the external power supply is a renewable energy power supply assembly or a non-renewable energy power supply assembly.
In another aspect, the present invention further provides a system for controlling a temperature of an all-solid-state lithium battery for suppressing growth of lithium dendrites, comprising:
the battery charging and discharging module comprises an all-solid-state lithium battery, a controllable charging circuit and a discharging circuit;
the battery bin is used for placing the all-solid-state lithium battery;
the temperature sensor is used for detecting the temperature in the battery compartment;
the controllable heater is used for increasing the temperature in the battery compartment;
the control module is electrically connected with the battery charging and discharging module, the temperature sensor and the controllable heater, if the control module receives a charging instruction sent by the battery charging and discharging module and a temperature detection value sent by the temperature sensor is smaller than 330K, the control module calculates a heating time value required for heating to 330K according to a preset temperature model, controls the controllable heater to work, and controls the controllable charging circuit to be switched on until the required heating time value is reached; and judging whether the temperature detection value sent by the temperature sensor is lower than 310K in real time or at regular time before the charging process is finished, if so, calculating the heating time value required for heating to 310K by the control module according to a preset temperature model, and controlling the controllable heater to work to keep the temperature in the battery compartment to be more than or equal to 310K in the charging process.
Further, the preset temperature model is:
Further, on the premise that the control module does not receive a charging instruction or a discharging instruction sent by the battery charging and discharging module, and the charging circuit and the discharging circuit are not connected, if the temperature detection value sent by the temperature sensor is smaller than a second temperature threshold, the control module controls the controllable heater to work until the temperature detection value sent by the temperature sensor reaches the second temperature threshold, and the setting range of the second temperature threshold is 280K to 450K.
Further, the discharging circuit is a controllable discharging circuit, if the control module receives a discharging instruction sent by the battery charging and discharging module and a temperature detection value sent by the temperature sensor is smaller than a third temperature threshold, the control module controls the controllable heater to work until the temperature detection value sent by the temperature sensor reaches the third temperature threshold, and the control module controls to switch on the controllable discharging circuit; and judging whether the temperature detection value sent by the temperature sensor is lower than a third temperature threshold value in real time or at regular time before the discharging process is finished, if so, controlling the controllable heater to work by the control module, so that the temperature in the battery compartment is kept to be higher than or equal to the third temperature threshold value in the discharging process, and the set value of the third temperature threshold value is higher than or equal to the second temperature threshold value.
Further, the discharge instruction includes a target discharge power, and the control module controls the temperature in the battery compartment in the discharge process according to the target discharge power, including: the higher the target discharge power is, the higher the temperature in the battery compartment is controlled by the control module before the discharge process is finished.
Further, the all-solid-state lithium battery temperature control system further comprises a power supply module for supplying power to the controllable heater, wherein the power supply module is the all-solid-state lithium battery or an external power supply, and the external power supply is a renewable energy power supply assembly or a non-renewable energy power supply assembly.
Further, the positive electrode of the all-solid-state lithium battery comprises one or more of a sulfide positive electrode, an oxide positive electrode and a ternary material;
the electrolyte of the all-solid-state lithium battery comprises one or more of a sulfide electrolyte and an oxide electrolyte;
the cathode of the all-solid-state lithium battery comprises one or more of a metal lithium cathode, an alloy cathode, a carbon family cathode material and a lithium-free cathode.
Further, the battery compartment is provided with a heat insulation cavity, and the thermal conductivity range of a cavity wall material of the heat insulation cavity is 0.001-1.2W/(m.K); or the wall of the heat-insulating cavity of the battery compartment is made of heat-insulating ceramic materials, foaming glass materials and/or aerogel.
The technical scheme provided by the invention has the following beneficial effects:
a. the temperature of the all-solid-state lithium battery in the charging process is increased, so that the ionic conductivity of the all-solid-state electrolyte is improved, the Young modulus of the metal lithium is reduced, the diffusion capacity of the metal lithium is improved, and the generation of lithium dendrites is effectively inhibited;
b. after the charging is finished, the battery can be kept at a stable operation temperature in both a standing stage and a discharging stage, so that the influence on the normal use of the battery caused by the reduction of the ionic conductivity due to low temperature is avoided;
c. by designing the heat preservation module, the heat dissipation rate in the temperature control device can be effectively reduced, so that the aim of saving energy and controlling temperature is fulfilled;
d. in the standing/discharging stage, the all-solid-state lithium battery is directly used for supplying power, or renewable energy sources such as a solar battery and the like are used for supplying power instead of an external power supply, so that the necessary movable requirement when the all-solid-state lithium battery is put into use is met;
e. different power supplies are adopted to drive the heater in the charging stage and the standing/discharging stage, and different operating temperatures are selected, so that the consumption of the temperature control device on the energy storage of the all-solid-state lithium battery can be reduced while the working performance of the all-solid-state lithium battery is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a temperature control method for improving the working performance of an all-solid-state lithium battery according to an embodiment of the invention;
FIG. 2 shows the total energy consumption and the required heating time t of the heater corresponding to step S1 according to the embodiment of the present invention1Preset temperature T with charging1Schematic diagram of variations of (a);
FIG. 3 shows that the charging preset temperatures T are different according to the step S21A change schematic diagram of the ion conductivity of the all-solid electrolyte and the ratio of the heating power to the battery charging power;
FIG. 4(a) is an SEM image of lithium metal deposition morphology of a negative electrode of an all-solid-state lithium battery at a preset charging temperature of 300K according to an embodiment of the invention;
FIG. 4(b) is an SEM image of lithium metal deposition morphology of a negative electrode of an all-solid-state lithium battery at a preset charging temperature of 335K according to an embodiment of the present invention;
FIG. 5 shows different preset charging temperatures T according to an embodiment of the present invention1Cycle life t of all-solid-state lithium battery with lower uncoated pure lithium cathode2Changing the experimental results;
FIG. 6 shows the temperature keeping time t without energy consumption corresponding to step S3 according to the embodiment of the present invention3Preset temperature following chargingT1And working preset temperature T2Schematic diagram of variations of (a);
FIG. 7 shows that the step S4 corresponds to different vehicle speeds v and different preset operating temperatures T according to the embodiment of the present invention2A change diagram of a heating power/battery discharge power ratio;
FIG. 8 shows different preset operation temperatures T corresponding to step S4 according to an embodiment of the present invention2Under the condition, the sustainable temperature control time t is t when the temperature control device is driven by the all-solid-state lithium battery to heat4A schematic diagram;
fig. 9 is a schematic diagram of a temperature control device for improving the working performance of an all-solid-state lithium battery according to an embodiment of the invention;
FIG. 10 is a schematic diagram of a temperature control device using a renewable energy power supply assembly according to an embodiment of the present invention;
wherein the reference numerals include: 101-external power supply assembly, 102-internal power supply assembly, 103-renewable energy power supply assembly, 201-PID heater, 202-temperature sensor, 3 as heat preservation module, 4 as all-solid-state lithium battery, 401-controllable charging and discharging circuit, and 5 as control module.
Detailed Description
In order to make the technical solutions of the present invention better understood and more clearly understood by those skilled in the art, the technical solutions of the embodiments of the present invention will be described below in detail and completely with reference to the accompanying drawings. It should be noted that the implementations not shown or described in the drawings are in a form known to those of ordinary skill in the art. Additionally, while exemplifications of parameters including particular values may be provided herein, it is to be understood that the parameters need not be exactly equal to the respective values, but may be approximated to the respective values within acceptable error margins or design constraints. It is to be understood that the described embodiments are merely exemplary of a portion of the invention and not all 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. In addition, the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The following describes a temperature control method and a temperature control device for improving the working performance of an all-solid-state lithium battery according to an embodiment of the present invention with reference to the accompanying drawings, and first, a temperature control method for improving the working performance of an all-solid-state lithium battery according to an embodiment of the present invention will be described with reference to the accompanying drawings.
The all-solid-state lithium battery (hereinafter referred to as battery) analyzed in the embodiment is selected by taking an electric vehicle battery as a standard, the selected electrolyte is lithium sulfur phosphorus chlorine electrolyte, the average battery capacity of the electric vehicle is about 60 kW.h, the power consumption is about 14.7 kW.h/100 km, the energy density of the all-solid-state lithium battery can reach 0.9 kW.h/L, the volume of the all-solid-state lithium battery is about 67L, the size of the battery is about 17mm × 62mm × 64mm by referring to half of the size of a storage battery for the electric vehicle, the battery is placed in a battery bin with a controllable heater and a heat insulation structure, the thickness of the selected heat insulation layer is 5mm, the size of the all-solid-state lithium battery device is converted by the size at the half thickness of the heat insulation layer, and the three dimensions are recorded as N1＝20mm，N2＝65mm，N369mm, still be equipped with temperature sensor and control module in the battery compartment, the all solid-state lithium battery in the battery compartment has controllable charge-discharge circuit, and its corresponding interface preferably extends to the battery compartment outside or on the surface, will refer to above battery compartment as temperature control device.
Fig. 1 is a flowchart of a temperature control method for improving the operating performance of an all-solid-state lithium battery according to an embodiment of the present invention. As shown in fig. 1, after the all-solid-state lithium battery is placed in the temperature control device, the temperature control is performed in stages based on the charging, standing and discharging processes, and the temperature control method for improving the working performance of the all-solid-state lithium battery comprises the following steps:
s1, after receiving the charging instruction of the all-solid-state lithium batteryFirst, the internal temperature of the temperature control device is detected, and when the internal temperature is lower than a first temperature threshold (hereinafter referred to as a charging preset temperature T)1) When the temperature control device is used, the external power supply or the full solid-state lithium battery in the battery bin supplies power to drive the heater, so that the internal temperature of the temperature control device is raised to the preset charging temperature T1。
In this embodiment, the charging preset temperature T1Above 310K, in another embodiment, the charging preset temperature T1Higher than 330K and not more than 450K.
In this embodiment, assuming that the actual temperature of the battery is T, the total heating power of the heater is q, the heated time is T, and the ambient temperature outside the temperature control device is T0Charging preset temperature of T1The cell density is rho and the cell specific heat is cpThe battery volume is V, and the heat preservation thermal conductivity is lambda, and the total heat radiating area of heat preservation is A, and when the heat preservation thickness was deltax, the actual temperature change of the battery in the temperature control device was shown as following formula (1):
by solving equation (1), we can obtain:
since the determination criterion at the end of step S1 is that the internal temperature of the temperature control device is raised to the charging preset temperature T1When T is equal to T1Time, required heating time t1Comprises the following steps:
at this time, the total energy Q consumed by the heater at the stage of step S11Comprises the following steps:
specific heat of batteryp900J/(kg. K), and a cell density ρ of 3500kg/m3The battery volume V is 67L, and the ambient temperature T outside the temperature control device0300K, the heat dissipation area A of the heat insulation layer is 2 x (N)1×N2+N1×N3+N2×N3) Is 0.01433m2When the thermal conductivity lambda of the insulating layer is 0.03W/(m.K), the thickness delta x of the insulating layer is 5mm, and the total power q of the heater is 100W, the different charging preset temperatures T are shown in FIG. 21Under the condition, the heater corresponding to step S1 consumes the total energy Q1And the required heating time t1Schematic diagram of the variation of (1). It can be seen that even though the preset temperature T is charged1The required heating time is still less than 10 minutes when the temperature is up to 450K, the total energy required by the heater is less than 0.015 kW.h, and the waiting time and the energy consumption are both in a feasible range meeting the charging requirement of the electric automobile.
S2, the internal temperature of the temperature control device reaches T1Then, the charging circuit of the all-solid-state lithium battery is switched on to start charging, and in the charging process, the heater is powered by an external power supply to keep the internal temperature of the temperature control device at T1(ii) a By charging the all-solid-state lithium battery at high temperature, the charging efficiency can be improved, the charging time can be shortened, the metal lithium deposited on the negative electrode is softened, the diffusion performance of the lithium is improved, the lithium deposition is more uniform, and the generation of lithium dendrites is effectively inhibited.
At the stage S2, the heater power only needs to be equal to the overall heat dissipation power of the temperature control device, and the charging power of the all-solid-state lithium battery is selected to be 5kW under the condition that the selection parameters are the same as those in the step S1, so that fig. 3 shows different preset charging temperatures T corresponding to the step S2 according to the embodiment of the present invention1Next, a change diagram of the ion conductivity of the all-solid electrolyte and the heating power/battery charging power ratio is shown. As can be seen from FIG. 3, the ionic conductivity of the electrolyte of the all-solid-state lithium battery increases exponentially with the increase of the temperature, and the proportion of the heating power required by the temperature control device to the charging power of the battery is always less than 0.1%, which illustrates that the control method can significantly improve the charging stageThe battery rate performance is expected to realize the quick charging of the battery with higher power and higher efficiency, and meanwhile, the consumed extra energy is extremely small, and the extra charging cost is less than 0.1 percent.
As an example, fig. 4(a) and fig. 4(b) are SEM images further showing metal lithium deposition profiles of the negative electrode of the all-solid-state lithium battery at different preset charging temperatures according to the embodiment of the present invention; comparing the lithium deposition appearances of the lithium battery with the preset charging temperature of 300K in fig. 4(a) and the preset charging temperature of 335K in fig. 4(b), it can be seen that, as the temperature rises, the grain boundaries of the lithium metal deposition appearance of the negative electrode of the all-solid-state lithium battery in fig. 4(b) are reduced, the lithium metal deposition is more uniform, and the surface is more flat and round, which is caused by the fact that the temperature rises, the young modulus of the lithium metal is reduced, and the diffusion performance is enhanced, therefore, the temperature rise can also well inhibit the formation of lithium dendrites, has a positive effect on the stable circulation of lithium, and confirms the effect of inhibiting the growth of lithium dendrites by the control method.
To further verify the effect of the temperature range selected by the control method to improve the battery performance, fig. 5 shows different preset charging temperatures T1Cycle life t of all-solid-state lithium battery with lower uncoated pure lithium cathode2Experimental measurements of changes. To fully illustrate the charging preset temperature T1And on the influence on the cycle life of the all-solid-state lithium battery, selecting a pure lithium cathode without coating to assemble the all-solid-state battery, wherein the electrolyte thickness is 500 mu m. The pure lithium cathode without coating is easy to generate lithium dendrite at ambient temperature, short circuit occurs after 3 cycles of circulation, and under the condition, the preset temperature T is charged1The cycle life of the all-solid-state lithium battery is exponentially increased, and the preset charging temperature T is1After the voltage exceeds 360K, the experimental sample can still normally run after 120 circles of the diagram, the short circuit phenomenon is not generated all the time, and the effects of improving the charging preset temperature on inhibiting the growth of the lithium dendrite, prolonging the service life of the battery and improving the performance of the battery are fully verified. In practical application, the preparation of the all-solid-state lithium battery can select a coated modified lithium cathode, an alloy cathode, a carbon family cathode or a lithium-free cathode so as to further prolong the service life of the all-solid-state lithium battery. After the alloy cathode is selected to prepare the all-solid-state battery, the charging is carried out at a preset temperature T1The temperature is increased to more than 310K, stable circulation of more than 1000 circles can be realized, the battery life can approach 20 years by estimating the charging of the electric vehicle once per week, and the actual requirements can be well met. Thus, the charging preset temperature T is selected1It is higher than 310K.
S3, after the charging of the all-solid-state lithium battery is completed, continuously detecting the internal temperature of the temperature control device until the internal temperature of the temperature control device is reduced to a second temperature threshold (hereinafter referred to as a preset operating temperature T)2)；
The working preset temperature T2Below the preset charging temperature T1(ii) a In this embodiment, the preset operating temperature T2Higher than 280K and not more than 450K.
Under the same selected parameters as those in step S1, the temperature variation of the all-solid-state lithium battery can be described by equation (5):
solving equation (5) yields:
at the end of the stage S3, the temperature of the all-solid-state lithium battery is reduced to T2Changing T to T2Substituting the formula into the formula, the S3 stage can be obtained by solving, and the heat preservation time t without additional heating energy consumption2Comprises the following steps:
FIG. 6 shows the temperature keeping time t without energy consumption corresponding to step S3 according to the embodiment of the present invention3Preset temperature T with charging1And working preset temperature T2As can be seen from fig. 6, the preset charging temperature T1The higher the working preset temperature T2The lower the temperature, the longer the incubation time.
Meanwhile, according to the formula (7), it is easy to find that the preset temperature T is set when the work is performed2Close to or even below the ambient temperature T outside the temperature control device0Time, holding time t3And the temperature tends to be infinite, the temperature control does not need to enter the S4 stage, and extra energy consumption is not needed, so that the normal work of the all-solid-state lithium battery in the standing and discharging stage can be ensured.
S4, supplying power to drive the heater to control the internal temperature of the temperature control device to be T2In the above way, the starting of the all-solid-state lithium battery is prevented from being influenced by the change of the environmental temperature, and the ion transport performance of the all-solid-state lithium battery in the discharging stage is improved;
in step S4, the power supply method for driving the heater may be the method of supplying power by directly using the all solid-state lithium battery, or by using a power generation method using renewable energy such as a solar battery.
Assuming that the electric vehicle consumes 14.7kW · h/100km of electricity, under the condition that the driving speed of the electric vehicle is v and other parameters are consistent with those selected in the step S1, FIG. 7 shows that the driving speed of the electric vehicle is different from the driving speed v and the operation preset temperature T is different from that of the step S4 according to the embodiment of the present invention2Next, a change diagram of the heating power/battery discharge power ratio is shown. It can be seen that even at very low vehicle speeds, and at the preset operating temperature T2Compared with the ambient temperature T outside the temperature control device0Under the condition that the voltage is higher than 40K, the ratio of the heating power to the battery discharge power is still less than 0.12%. Therefore, the energy consumption required by the temperature control device is extremely low, and the battery can be effectively ensured to be at a reasonable operation temperature.
FIG. 8 further shows different operating preset temperatures T2Under the condition, the sustainable temperature control time t is t when the temperature control device is driven by the all-solid-state lithium battery to heat4With a battery capacity of about 60kW · h, as can be seen from fig. 8, even at the preset operating temperature T2Compared with the ambient temperature T outside the temperature control device0The temperature control device can still be always at the preset working temperature T within the time of more than 700 days after the temperature is higher than 40K2And the electrolyte is ensured to have better ionic conductivity. This means that the temperature control device is adopted even if the ambient temperature of the automobile is below-30 ℃ all the year roundThe battery can still keep the temperature at 10 ℃ or above all the time within the time range of nearly 2 years so as to meet the requirement of emergency starting at any time.
In addition, when the renewable energy power generation method is adopted for power supply, the heater does not consume the energy stored by the battery, and the sustainable temperature control time is directly dependent on the service life of the renewable energy power supply system and is not influenced by the battery capacity.
Optionally, when the discharge power needs to be increased, a third temperature threshold (hereinafter referred to as a discharge preset temperature T) may be further set according to the performance requirement3) When the temperature sensor detects that the internal temperature of the temperature control device is lower than or equal to the preset discharging temperature T3During the operation, the power is supplied to drive the heater to maintain the internal temperature of the temperature control device at the preset discharge temperature T3In the above way, the ion transport performance of the all-solid-state lithium battery in the discharging stage is further improved;
the discharge preset temperature T3Above the working preset temperature T2。
Since the optional step is substantially consistent with the heating and heat dissipation conditions corresponding to step S4, only the preset operating temperature T in fig. 7 and 8 is required2Replacement by discharge preset temperature T3The battery temperature can be controlled to the preset discharging temperature T by analysis3The energy consumption is proportional to the sustainable operation time.
The invention is not limited to the above embodiments, and the temperature control method for improving the working performance of the all-solid-state lithium battery provided by the invention can be widely applied to the field and other fields related to the field, and can be implemented by adopting other various embodiments. For example, the temperature of the all-solid-state battery is regulated and controlled in stages based on the working state of the battery so as to improve the working performance of the battery, improve the working performance of other batteries, or simply perform heater distribution optimization, temperature control optimization and the like on the basis of the design. Therefore, the design of the invention is within the protection scope of the invention, and the design of the invention can be changed or modified simply by adopting the design idea of the invention.
In conclusion, the embodiment of the invention can effectively improve the temperature of the all-solid-state lithium battery in the charging process, so as to improve the ionic conductivity of the all-solid-state electrolyte, reduce the Young modulus of the metal lithium, improve the diffusion capacity of the metal lithium and effectively inhibit the generation of lithium dendrites; after charging is finished, the battery can be kept at a stable operation temperature in both a standing stage and a discharging stage so as to avoid the reduction of the ionic conductivity caused by low temperature and influence on the normal use of the battery; by designing the heat insulation structure, the heat dissipation rate in the temperature control device can be effectively reduced, so that the aim of saving energy and controlling temperature is fulfilled; different power supplies are adopted to drive the heater in the charging stage and the standing/discharging stage, different operating temperatures are selected, and the consumption of the temperature control device on the energy storage of the all-solid-state lithium battery can be reduced while the working performance of the all-solid-state lithium battery is improved through staged temperature control.
In addition, when the renewable energy power generation method is adopted for power supply, the heater does not consume the energy stored by the battery, and the sustainable temperature control time is directly dependent on the service life of the renewable energy and is not influenced by the battery capacity. In the standing/discharging stage, the all-solid-state lithium battery is directly used for supplying power, or renewable energy sources such as a solar battery and the like are used for supplying power instead of an external power supply, so that the necessary movable requirement when the all-solid-state lithium battery is put into use is met.
Next, a temperature control device for improving the operating performance of an all-solid lithium battery according to an embodiment of the present invention will be described with reference to fig. 9.
Fig. 9 is a schematic diagram of a temperature control device for improving the working performance of an all-solid-state lithium battery according to an embodiment of the invention;
the temperature control device for improving the working performance of the all-solid-state lithium battery comprises: the device comprises a double-path power supply module, a controllable heating module, a heat preservation module, a battery charging and discharging module and a control module.
The double-circuit power supply module comprises an external power supply assembly 101 capable of using an external power supply and an internal power supply assembly 102 capable of using an internal all-solid-state lithium battery to directly supply power;
the controllable heating module comprises a PID heater 201 and a temperature sensor 202, and the temperature is controlled according to the charging and discharging stage of the all-solid-state lithium batteryThe internal temperature of the device is controlled at a preset temperature T1Or maintained at a predetermined temperature T2The above;
the heat preservation module 3 is a heat preservation cavity which is made of low-heat-conductivity heat preservation materials and can be used for placing the all-solid-state lithium battery, so that electric energy required by heating the cavity is saved;
the battery charging and discharging module comprises an all-solid-state lithium battery 4 and an all-solid-state lithium battery controllable charging and discharging circuit 401;
the control module 5 is used for controlling the two-way power supply module, the controllable heating module and the battery charging and discharging module so as to realize staged temperature control according to the charging and discharging stage and the internal temperature of the temperature control device.
The dual-path power supply module may further include a renewable energy power supply module such as a solar cell power supply module, and at this time, a schematic diagram of the temperature control device using the renewable energy power supply module is shown in fig. 10. Compared with fig. 9, the design of fig. 10 replaces the internal power supply component 102 of the dual power supply module, which can be directly powered using an internal all-solid-state lithium battery, with the renewable energy power supply component 103. Obviously, a three-way power supply module (not shown) may also be provided, that is, the three-way power supply module includes an external power supply component 101, an internal power supply component 102 directly powered by using an internal all-solid-state lithium battery, and a renewable energy power supply component 103.
In addition, the temperature control device for the operating performance of the all-solid-state lithium battery according to the above embodiment of the present invention may further have the following additional technical features:
the temperature measured by the temperature sensor in the controllable heating module can be used as a judgment standard for controlling the on or off of the double-circuit power supply module and the battery charging and discharging module:
specifically, after receiving the charging instruction of the all-solid-state lithium battery, the temperature sensor 202 detects that the internal temperature of the temperature control device is lower than the preset charging temperature T1When the temperature control device is used, the control module 5 preferably controls to start the external power supply assembly 101 of the double-circuit power supply module, drives the controllable heating module PID heater 201, and raises the internal temperature of the temperature control device to the preset charging temperature T1(ii) a In the charging stage, an external power supply can be adopted, and the heater can be driven by using larger power, so that the temperature is controlledThe device is internally kept at a higher temperature, and at the moment, the all-solid-state lithium battery can be charged at a high temperature so as to improve the ionic conductivity of all-solid-state electrolyte during charging, further improve the charging efficiency, soften metal lithium deposited by a negative electrode, improve the diffusion performance of lithium, enable the lithium deposition to be more uniform and effectively inhibit the generation of lithium dendrites.
The temperature sensor 202 detects that the internal temperature of the temperature control device reaches T1Then, the control module 5 controls to switch on the battery controllable charging and discharging circuit 401, and if the temperature is detected to be reduced to T in the charging process of the battery1Then, the external power supply component of the two-way power supply module is started to drive the PID heater 201 of the controllable heating module, so that the internal temperature of the temperature control device is kept at T1；
After the charging of the all-solid-state lithium battery is completed, the control module 5 controls to close the battery controllable charging and discharging circuit 401, and the temperature sensor 202 detects and continuously detects the internal temperature of the temperature control device until the internal temperature of the temperature control device is reduced to the preset working temperature T2；
The temperature sensor 202 detects that the temperature inside the temperature control device is reduced to T2Then, the control module 5 controls the on-state control of the built-in power supply assembly 102 or the renewable energy power supply assembly 103 to drive the PID heater 201, so as to control the internal temperature of the temperature control device to be T2The above; after charging is finished, the battery is kept at a stable operation temperature in both a standing stage and a discharging stage so as to avoid the reduction of ionic conductivity caused by low temperature and influence on the normal use of the battery; in this case, since it is difficult to use an external power source in the non-charging stage, and it is necessary to use an all-solid-state lithium battery or other renewable energy power supply device for power supply, the operating temperature at this time needs to be appropriately lowered compared to the charging stage, so as to avoid excessive energy consumption.
Optionally, when the discharging power needs to be increased, the preset discharging temperature T may be further set according to the performance requirement3After the discharging stage, the temperature sensor 202 detects that the internal temperature of the temperature control device is lower than or equal to the preset discharging temperature T3When the power supply is started, the control module 5 controls to start and control the built-in power supply component 102 or can start and stopThe power supply assembly 103 for generating energy drives the PID heater 201 to maintain the internal temperature of the temperature control device at the preset discharge temperature T3The above; the discharge preset temperature T3Above the working preset temperature T2。
In order to guarantee the heat preservation and energy saving effects, the thermal conductivity of the heat preservation material adopted by the heat preservation module is lower than 1.2W/(m.K), preferably lower than 0.12W/(m.K), and the heat preservation material comprises aerogel, foamed glass, heat preservation ceramic materials and the like.
It should be noted that the foregoing explanation of the embodiment of the temperature control method for improving the working performance of the all-solid-state lithium battery is also applicable to the temperature control device for improving the working performance of the all-solid-state lithium battery in this embodiment, and details are not repeated here. Meanwhile, the arrangement of the PID heaters and the temperature sensors in fig. 9 and 10 is only shown as an example, the PID heaters and the temperature sensors may be arranged at any position in the temperature control device, or may be uniformly distributed in the temperature control device, and the number of the PID heaters and the number of the temperature sensors may be greater than or equal to one.
According to the temperature control device for improving the working performance of the all-solid-state lithium battery, which is provided by the embodiment of the invention, the all-solid-state lithium battery can be charged at the preset temperature T by constructing the double-path power supply module, the controllable heating module, the heat preservation module and the battery charging and discharging module1High temperature charging under conditions, operating preset temperature T2Or discharge preset temperature T3Discharge under controlled temperature conditions and preset working temperature T2Storage under stable temperature conditions for a long period of time. Therefore, the ionic conductivity of the all-solid-state electrolyte can be improved, the generation of lithium dendrites is effectively inhibited, and the quick start of the battery under the condition of extremely low external environment temperature is ensured.
By adopting the method and the device for controlling the temperature of the all-solid-state lithium battery, the temperature of the all-solid-state lithium battery in the charging process can be effectively improved, so that the ionic conductivity of the all-solid-state electrolyte is improved, the Young modulus of the metal lithium is reduced, the diffusion capacity of the metal lithium is improved, and the generation of lithium dendrites is effectively inhibited; after charging is finished, the battery can be kept at a stable operation temperature in both a standing stage and a discharging stage so as to avoid the reduction of the ionic conductivity caused by low temperature and influence on the normal use of the battery; in addition, by designing the heat preservation module, the heat dissipation rate in the temperature control device can be effectively reduced, so that the purpose of energy conservation and temperature control is achieved; the built-in power supply assembly and the renewable energy power supply assembly which can be directly powered by the internal all-solid-state lithium battery are designed, and external power supplies are not used for supplying power, so that the temperature control device can be independently operated without other devices after the all-solid-state lithium battery is charged, and the necessary movable requirement when the all-solid-state lithium battery is put into use is met; different power supplies are adopted to drive the heater in the charging stage and the standing/discharging stage, different operating temperatures are selected, and by means of staged temperature control, the consumption of the temperature control device on the energy storage of the all-solid-state lithium battery can be reduced while the working performance of the all-solid-state lithium battery is improved, namely, the working performance of the all-solid-state lithium battery is effectively improved on the basis of low energy consumption.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made by those skilled in the art based on the spirit and principles of the present invention are included in the scope of the present invention.
Claims (15)
1. A charging temperature control method for inhibiting growth of lithium dendrites of an all-solid-state lithium battery is characterized in that if an instruction for charging the all-solid-state lithium battery is received, whether the temperature in a battery compartment where the all-solid-state lithium battery is located is smaller than a first temperature threshold value is judged, and if not, a charging circuit is directly switched on; if yes, calculating a heating time value required by heating to the first temperature threshold according to a preset temperature model, heating the battery compartment until the required heating time value is reached, and switching on a charging circuit, wherein the set range of the first temperature threshold is 310K-450K.
2. The charging temperature control method according to claim 1, wherein the preset temperature model is:
3. The charging temperature control method according to claim 1, wherein the charging process is started under the premise that the temperature in the battery compartment where the all-solid-state lithium battery is located is greater than or equal to 330K and less than or equal to 450K, and the temperature in the battery compartment is maintained to be greater than or equal to 310K and less than or equal to 450K before the charging process is finished.
4. The charging temperature control method according to claim 1, wherein the temperature in the battery compartment is controlled to be not less than a second temperature threshold after the charging process is finished, and the second temperature threshold is set to be 280K to 450K.
5. The charging temperature control method according to claim 1, wherein the first temperature threshold is set in a range of 330K to 450K.
6. The charging temperature control method according to claim 1, wherein an electric heating element for heating the battery compartment and a temperature sensor for detecting the temperature in the battery compartment are provided, and after the command for charging the all-solid-state lithium battery is received, if the temperature sensor detects that the temperature value is lower than 310K, the electric heating element and the power supply circuit are switched on, until the temperature sensor detects that the temperature value reaches 330K, the electric heating element stops working and the charging circuit is switched on.
7. The temperature control method according to claim 6, wherein the power supply is an external power supply or the all-solid-state lithium battery in a battery compartment, wherein the external power supply is a renewable energy power supply component or a non-renewable energy power supply component.
8. An all solid-state lithium battery temperature control system that suppresses lithium dendrite growth, comprising:
the battery charging and discharging module comprises an all-solid-state lithium battery, a controllable charging circuit and a discharging circuit;
the battery bin is used for placing the all-solid-state lithium battery;
the temperature sensor is used for detecting the temperature in the battery compartment;
the controllable heater is used for increasing the temperature in the battery compartment;
the control module is electrically connected with the battery charging and discharging module, the temperature sensor and the controllable heater, if the control module receives a charging instruction sent by the battery charging and discharging module and a temperature detection value sent by the temperature sensor is smaller than 330K, the control module calculates a heating time value required for heating to 330K according to a preset temperature model, controls the controllable heater to work, and controls the controllable charging circuit to be switched on until the required heating time value is reached; and judging whether the temperature detection value sent by the temperature sensor is lower than 310K in real time or at regular time before the charging process is finished, if so, calculating the heating time value required for heating to 310K by the control module according to a preset temperature model, and controlling the controllable heater to work to keep the temperature in the battery compartment to be more than or equal to 310K in the charging process.
9. The all-solid-state lithium battery temperature control system according to claim 8, wherein the preset temperature model is:
10. The system according to claim 8, wherein on the premise that the control module does not receive the charging command or the discharging command sent by the battery charging and discharging module, and the charging circuit and the discharging circuit are both in the off state, if the temperature detection value sent by the temperature sensor is smaller than a second temperature threshold, the control module controls the controllable heater to operate until the temperature detection value sent by the temperature sensor reaches the second temperature threshold, and the setting range of the second temperature threshold is 280K to 450K.
11. The system according to claim 10, wherein the discharge circuit is a controllable discharge circuit, and if the control module receives a discharge instruction sent by the battery charging and discharging module and a temperature detection value sent by the temperature sensor is smaller than a third temperature threshold, the control module controls the controllable heater to operate until the temperature detection value sent by the temperature sensor reaches the third temperature threshold, and then the control module controls the controllable discharge circuit to be turned on; and judging whether the temperature detection value sent by the temperature sensor is lower than a third temperature threshold value in real time or at regular time before the discharging process is finished, if so, controlling the controllable heater to work by the control module, so that the temperature in the battery compartment is kept to be higher than or equal to the third temperature threshold value in the discharging process, and the set value of the third temperature threshold value is higher than or equal to the second temperature threshold value.
12. The system according to claim 11, wherein the discharge command includes a target discharge power, and the control module controls the temperature in the battery compartment during the discharge process according to the target discharge power includes: the higher the target discharge power is, the higher the temperature in the battery compartment is controlled by the control module before the discharge process is finished.
13. The system according to claim 8, further comprising a power supply module for supplying power to the controllable heater, wherein the power supply module is the all-solid-state lithium battery itself or an external power supply, and wherein the external power supply is a renewable energy power supply component or a non-renewable energy power supply component.
14. The all-solid-state lithium battery temperature control system according to claim 8, wherein the positive electrode of the all-solid-state lithium battery comprises one or more of a sulfide positive electrode, an oxide positive electrode, a ternary material;
the electrolyte of the all-solid-state lithium battery comprises one or more of a sulfide electrolyte and an oxide electrolyte;
the cathode of the all-solid-state lithium battery comprises one or more of a metal lithium cathode, an alloy cathode, a carbon family cathode material and a lithium-free cathode.
15. The all-solid-state lithium battery temperature control system according to claim 8, wherein the battery compartment has a thermal insulation cavity, and the thermal conductivity of the material of the cavity wall of the thermal insulation cavity is in a range of 0.001 to 1.2W/(m-K); or the wall of the heat-insulating cavity of the battery compartment is made of heat-insulating ceramic materials, foaming glass materials and/or aerogel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345119.9A CN114267891B (en) | 2021-05-19 | 2021-05-19 | All-solid-state lithium battery charging temperature control method and system for inhibiting growth of lithium dendrite |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110543084.3A CN113036248B (en) | 2021-05-19 | 2021-05-19 | All-solid-state lithium battery temperature control method and system for inhibiting growth of lithium dendrites |
| CN202111345119.9A CN114267891B (en) | 2021-05-19 | 2021-05-19 | All-solid-state lithium battery charging temperature control method and system for inhibiting growth of lithium dendrite |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110543084.3A Division CN113036248B (en) | 2021-05-19 | 2021-05-19 | All-solid-state lithium battery temperature control method and system for inhibiting growth of lithium dendrites |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114267891A true CN114267891A (en) | 2022-04-01 |
| CN114267891B CN114267891B (en) | 2024-04-19 |
Family
ID=76455400
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111344946.6A Pending CN114243133A (en) | 2021-05-19 | 2021-05-19 | Temperature control method and temperature control system for all-solid-state lithium battery |
| CN202110543084.3A Active CN113036248B (en) | 2021-05-19 | 2021-05-19 | All-solid-state lithium battery temperature control method and system for inhibiting growth of lithium dendrites |
| CN202111345119.9A Active CN114267891B (en) | 2021-05-19 | 2021-05-19 | All-solid-state lithium battery charging temperature control method and system for inhibiting growth of lithium dendrite |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111344946.6A Pending CN114243133A (en) | 2021-05-19 | 2021-05-19 | Temperature control method and temperature control system for all-solid-state lithium battery |
| CN202110543084.3A Active CN113036248B (en) | 2021-05-19 | 2021-05-19 | All-solid-state lithium battery temperature control method and system for inhibiting growth of lithium dendrites |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN114243133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114865150A (en) * | 2022-06-01 | 2022-08-05 | 中国电建集团成都勘测设计研究院有限公司 | Temperature management method and system for energy storage battery system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116088607B (en) * | 2023-01-17 | 2023-10-13 | 上海艾临科智能科技有限公司 | Energy storage device-oriented temperature control method and device, electronic equipment and storage medium |
| CN116936971B (en) * | 2023-09-15 | 2024-01-05 | 中石油深圳新能源研究院有限公司 | Full-solid-state lithium battery charging temperature control method |
| CN117895120B (en) * | 2024-03-14 | 2024-05-17 | 因湃电池科技有限公司 | Battery abnormality detection method, device and storage medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393368A (en) * | 2014-09-25 | 2015-03-04 | 北京现代汽车有限公司 | Method and apparatus for determining remaining heating time for heating power battery to achieve rechargeable temperature |
| CN104409785A (en) * | 2014-11-27 | 2015-03-11 | 苏州贝多环保技术有限公司 | Electric vehicle battery management system and management method |
| CN105098899A (en) * | 2015-07-31 | 2015-11-25 | 深圳市大疆创新科技有限公司 | Charging box, charging box control method and movable platform |
| CN105742758A (en) * | 2014-12-24 | 2016-07-06 | 丰田自动车株式会社 | Temperature-Raising Device And Temperature-Raising Method For In-Car Battery |
| CN105922880A (en) * | 2016-05-03 | 2016-09-07 | 北京新能源汽车股份有限公司 | Charging control method and system for power battery of electric automobile |
| CN109818109A (en) * | 2019-03-04 | 2019-05-28 | 广州小鹏汽车科技有限公司 | A kind of power battery low-temperature protection system and its guard method |
| CN110212260A (en) * | 2018-02-28 | 2019-09-06 | 中信国安盟固利动力科技有限公司 | A kind of solid lithium ion battery and battery system |
| CN110350259A (en) * | 2019-05-29 | 2019-10-18 | 北京航空航天大学 | A kind of lithium ion battery low-temperature charging method |
| CN112219334A (en) * | 2018-12-18 | 2021-01-12 | 株式会社Lg化学 | Apparatus and method for controlling charging of secondary battery pack |
| US20210028507A1 (en) * | 2019-07-24 | 2021-01-28 | Nanotek Instruments, Inc. | Battery fast-charging and cooling system and method of operating same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2313158C2 (en) * | 2006-01-10 | 2007-12-20 | Общество С Ограниченной Ответственностью "Высокоэнергетические Батарейные Системы" | Solid-state chemical current supply and method for raising discharge capacity/ |
| CN101931110B (en) * | 2009-06-18 | 2013-12-18 | 比亚迪股份有限公司 | Method for controlling heating of battery and device thereof |
| JP5679055B2 (en) * | 2011-06-10 | 2015-03-04 | トヨタ自動車株式会社 | Battery charging method and battery charging control device |
| CN104157929A (en) * | 2014-07-28 | 2014-11-19 | 李玉峰 | Low-temperature protection package for lithium battery |
| CN107331923A (en) * | 2017-06-27 | 2017-11-07 | 北京新能源汽车股份有限公司 | Electric automobile power battery temprature control method and device |
| JP2019132696A (en) * | 2018-01-31 | 2019-08-08 | トヨタ自動車株式会社 | Control device of all-solid-state battery |
| CN110086222A (en) * | 2019-04-29 | 2019-08-02 | 努比亚技术有限公司 | A kind of charging/discharging thereof, device and mobile terminal |
-
2021
- 2021-05-19 CN CN202111344946.6A patent/CN114243133A/en active Pending
- 2021-05-19 CN CN202110543084.3A patent/CN113036248B/en active Active
- 2021-05-19 CN CN202111345119.9A patent/CN114267891B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393368A (en) * | 2014-09-25 | 2015-03-04 | 北京现代汽车有限公司 | Method and apparatus for determining remaining heating time for heating power battery to achieve rechargeable temperature |
| CN104409785A (en) * | 2014-11-27 | 2015-03-11 | 苏州贝多环保技术有限公司 | Electric vehicle battery management system and management method |
| CN105742758A (en) * | 2014-12-24 | 2016-07-06 | 丰田自动车株式会社 | Temperature-Raising Device And Temperature-Raising Method For In-Car Battery |
| CN105098899A (en) * | 2015-07-31 | 2015-11-25 | 深圳市大疆创新科技有限公司 | Charging box, charging box control method and movable platform |
| CN105922880A (en) * | 2016-05-03 | 2016-09-07 | 北京新能源汽车股份有限公司 | Charging control method and system for power battery of electric automobile |
| WO2017190475A1 (en) * | 2016-05-03 | 2017-11-09 | 北京新能源汽车股份有限公司 | Charging control method and control system of electric vehicle power battery |
| CN110212260A (en) * | 2018-02-28 | 2019-09-06 | 中信国安盟固利动力科技有限公司 | A kind of solid lithium ion battery and battery system |
| CN112219334A (en) * | 2018-12-18 | 2021-01-12 | 株式会社Lg化学 | Apparatus and method for controlling charging of secondary battery pack |
| CN109818109A (en) * | 2019-03-04 | 2019-05-28 | 广州小鹏汽车科技有限公司 | A kind of power battery low-temperature protection system and its guard method |
| CN110350259A (en) * | 2019-05-29 | 2019-10-18 | 北京航空航天大学 | A kind of lithium ion battery low-temperature charging method |
| US20210028507A1 (en) * | 2019-07-24 | 2021-01-28 | Nanotek Instruments, Inc. | Battery fast-charging and cooling system and method of operating same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114865150A (en) * | 2022-06-01 | 2022-08-05 | 中国电建集团成都勘测设计研究院有限公司 | Temperature management method and system for energy storage battery system |
| CN114865150B (en) * | 2022-06-01 | 2024-01-30 | 中国电建集团成都勘测设计研究院有限公司 | Temperature management method and system for battery system for energy storage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113036248B (en) | 2021-10-22 |
| CN114243133A (en) | 2022-03-25 |
| CN113036248A (en) | 2021-06-25 |
| CN114267891B (en) | 2024-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113036248B (en) | All-solid-state lithium battery temperature control method and system for inhibiting growth of lithium dendrites | |
| US8395358B2 (en) | Method for managing the heat in an electric battery | |
| US9960461B2 (en) | System and method for temperature control of multi-battery systems | |
| CN1240157C (en) | Fuel cell system and its stop method | |
| EP2717379B1 (en) | Air-conditioning control device for battery pack | |
| JP5314872B2 (en) | Secondary battery with heat generation mechanism | |
| WO2017056162A1 (en) | Power consumption control device | |
| WO2017056161A1 (en) | Heating control device | |
| US10615469B2 (en) | Capacity recovery method and capacity recovery system for secondary battery | |
| CN112172607B (en) | Battery heat preservation control system for completing charging of electric automobile | |
| CN108232238B (en) | Fuel cell system, control method and fuel cell automobile | |
| JP2004327223A (en) | Battery housing device, power supply device, and electric vehicle | |
| JP2005518641A (en) | Fuel cell energy management system for cold environments | |
| CN101734133A (en) | Heating temperature-control system for power battery | |
| CN105826619A (en) | Constant-temperature thermal management system for lithium-ion power battery pack | |
| CN110416640A (en) | Combination power battery charge/discharge control method, system and automobile | |
| EP3614485B1 (en) | Battery device and battery temperature adjusting method | |
| CN207565376U (en) | A kind of electric automobile charging pile with charging heating system | |
| JP4930270B2 (en) | Vehicle and heat exchange system | |
| KR100893431B1 (en) | Fuel cell apparatus having improved starting performance in low temperature and method for controlling the same | |
| CN103022540A (en) | Minus 20 DEG C-quick start proton exchange membrane fuel cell system | |
| CN115179817A (en) | Heat preservation control method and system for vehicle battery, electronic device and storage medium | |
| CN105591138A (en) | Operation Control Method Of Fuel Cell And Operation Control Apparatus Of Fuel Cell | |
| CN114171761A (en) | Quick low-temperature starting method for proton exchange membrane fuel cell | |
| CN113224404A (en) | Control of coolant temperature in energy storage enclosure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |