CN106532187B - A kind of battery heating means based on cell health state - Google Patents

A kind of battery heating means based on cell health state Download PDF

Info

Publication number
CN106532187B
CN106532187B CN201610991417.8A CN201610991417A CN106532187B CN 106532187 B CN106532187 B CN 106532187B CN 201610991417 A CN201610991417 A CN 201610991417A CN 106532187 B CN106532187 B CN 106532187B
Authority
CN
China
Prior art keywords
battery
soh
cell
state
heating
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.)
Active
Application number
CN201610991417.8A
Other languages
Chinese (zh)
Other versions
CN106532187A (en
Inventor
吴晓刚
陈喆
周美兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN201610991417.8A priority Critical patent/CN106532187B/en
Publication of CN106532187A publication Critical patent/CN106532187A/en
Application granted granted Critical
Publication of CN106532187B publication Critical patent/CN106532187B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/615Heating or keeping warm
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389Measuring internal impedance, internal conductance or related variables
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/63Control systems
    • H01M10/633Control systems characterised by algorithms, flow charts, software details or the like
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/63Control systems
    • H01M10/637Control 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

A kind of battery heating means based on cell health state, belong to battery technical field of heating.When the present invention is to solve battery charging under low temperature and use, in the presence of can not be evenly heated to battery, or during heating due to ignoring the difference between battery internal charging resistance and electric discharge internal resistance, and influence of the cell health state to battery performance is not accounted for, the problem of it is improper to choose and control so as to cause battery low-temperature heat pulse amplitude, acceleration battery aging.The present invention to battery by applying alternating pulsing current, the heat generated using the internal resistance of cell carries out internal heating to battery, the internal resistance of cell is divided into internal charging resistance and electric discharge internal resistance with refining during heating, using a certain constant polarizing voltage as restrictive condition, consider influence of the cell health state to battery performance, the accuracy that battery low-temperature heat pulse amplitude is chosen and controlled is increased, influence of the heating process of battery to battery aging is effectively inhibited.

Description

A kind of battery heating means based on cell health state
Technical field
The present invention relates to a kind of battery heating means, and in particular to a kind of battery heating side based on cell health state Method belongs to batteries of electric automobile low-temperature heat technical field.
Background technology
The advantages that lithium ion battery is high, energy density is big, self-discharge rate is low and storage time is long with its specific power, just gradually Other batteries are replaced to become main power battery.Although lithium ion battery has many good qualities, at low temperature, lithium-ion electric There are still larger problems for the charge-discharge performance in pond, such as:Various active material activities reduce, and the reactivity of battery core electrode is low, All kinds of impedances of graphite cathode inside lithium ion cell are significantly increased, and battery active volume is reduced, and output power is decreased obviously, this is right The performance of electric vehicle is affected.
At present for the low temperature of battery using problem, a kind of way of the relevant technologies is:It is external using broadband metal film etc. The method of heating heats battery, is used battery or DC charging after so that battery temperature is increased.But this method Battery can not be evenly heated, can be caused compared with burden to the equilibrium of battery pack.Another way of the relevant technologies is using just String alternating current carries out charge and discharge to battery, and the heat generated using internal resistance when battery low temperature carries out internal heating to battery, still When choosing and controlling pulse current amplitude, the difference for ignoring battery internal charging resistance between internal resistance of discharging, and do not examine Consider influence of the cell health state to battery performance so that it is improper that alternating-current pulse amplitude when battery heats is chosen and controlled, To accelerate the decline of battery during heating.
Invention content
The brief overview about the present invention is given below, in order to provide about the basic of certain aspects of the invention Understand.It should be appreciated that this general introduction is not the exhaustive general introduction about the present invention.It is not intended to determine the pass of the present invention Key or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides certain concepts in simplified form, In this, as the preamble in greater detail discussed later.
In consideration of it, the present invention is to solve under low temperature battery charging and in use, in the presence of that can not be evenly heated to battery, Or during heating due to the difference for ignoring battery internal charging resistance between internal resistance of discharging, and it is strong not account for battery Influence of the health state to battery performance, it is improper to choose and control so as to cause battery low-temperature heat pulse amplitude, and battery is accelerated to decline A kind of old problem, it is proposed that battery heating means based on cell health state.
The scheme taken of the present invention is:A kind of battery heating means based on cell health state, the specific steps are:
Step 1 determines the current health status of battery, executes step 2;
Step 2 acquires the information of battery charge state and battery temperature, executes step 3;
Step 3, judges whether battery temperature T is less than lowest temperature, if executing step 4, otherwise executes step 11;
Step 4 inquires corresponding internal charging resistance according to battery temperature and state-of-charge in the table of comparisons pre-established With electric discharge internal resistance, step 5 is executed;
Step 5, according to cell health state, charge and discharge internal resistance, according to battery low-temperature heat pulse amplitude basis for selecting, Charging pulse amplitude and discharge pulse amplitude are calculated separately out, step 6 is executed;
Step 6, according to calculated charging pulse amplitude and discharge pulse amplitude and preset pulse frequency, Charge and discharge electric pulse is applied to battery, the heat generated using the internal resistance of cell carries out internal heating to battery, executes step 7;
Step 7, battery temperature detect and are denoted as T1, execute step 8;
Step 8, judges whether battery temperature rises n DEG C, i.e. T1- T whether >=n;If executing step 9, otherwise hold Row step 6;
Step 9, judges whether battery temperature reaches target temperature, i.e. T1Whether >=target temperature;If executing step 10 One, otherwise execute step 10;
Step 10 calculates battery temperature from T to T1Battery charge state knots modification in constant interval, regains battery State-of-charge, and enable battery temperature T=T1, execute step 4;
Step 11, stop pulse current charging and discharging heat battery, and electric vehicle normal operation executes step 1.
Further:In step 1, control unit determines the health status of battery, eight shadows by eight influence factors Ring factor be respectively:Accumulated cycles N;It is accumulative to use duration t;Accumulative ampere-hour handling capacity Q;Internal resistance of cell R;Actual capacity C; Capacity increment value | Δ Q/ Δs V |aver;The voltage value V of cell voltage plateau under standard discharge condition;It is permanent under standard charging state Stream is filled with electricity and is filled with the ratio Q of electricity with constant pressureCC/QCV;Wherein, when a charge and discharge cycles are more than 3 minutes, cycle time Number can just be added up.
Further:The calculation formula of eight influence factors is respectively:
Wherein NrFor specified accumulated cycles;
Wherein trFor it is specified it is accumulative use duration;
Wherein QrFor specified accumulative ampere-hour handling capacity;
Wherein R0With RfTo refer to internal resistance;
Wherein CrFor rated capacity;
Wherein Z0With ZfTo refer to capacity increment value;
Wherein V0With VfTo refer to platform voltage value;
Wherein G0And GfFor reference value.
Further:Each influence factor has corresponding weight θi, the expression formula of final cell health state is:
SOH=θ1SOH12SOH23SOH34SOH45SOH56SOH67SOH78SOH8
Further:Influence factor has corresponding weight θiMeet following expression formula:
θ12345678=1;
θ12345678=1:1:2:1:2:1:1:1.
Further:Eight influence factors for determining cell health state, before every primary cell low-temperature heat, control unit To SOH1~SOH4Value refresh it is primary;Every Y days, control unit was to SOH5~SOH8Value refresh it is primary;The wherein value of Y Ranging from 20~40.
Further:The internal resistance of cell is divided into internal charging resistance and electric discharge internal resistance, measures different battery temperatures and charged in advance In internal charging resistance and electric discharge internal resistance and the internal resistance of cell inquiry table of storage in a control unit when state, convenient in heating process In detect in real time and charging pulse amplitude I when calculating separately out battery difference battery temperature and state-of-chargecharWith electric discharge arteries and veins Rush amplitude Idischar
Further:Set a certain constant polarizing voltage value Vp, polarizing voltage value VpValue range be 0.1~0.4V, by In cell resistance ReqChange with the change of battery temperature and state-of-charge, according to I=Vp/Req, and consider cell health state Influence to battery performance, final battery low-temperature heat pulse amplitude basis for selecting are:
Charging pulse amplitude:Ichar=f (SOH, Vp/Req-char);
Discharge pulse amplitude:Idischar=f (SOH, Vp/Req-dischar)。
Further:Acquisition state-of-charge in step 2 is the side being combined with Kalman filtering by current integration method The SOC that method obtains0, and the battery charge state in step 10, it is to pass through SOC1=SOC0Δ SOC is obtained, whereinT is the time that battery temperature is consumed from T to T1 in constant interval in formula.
Further:During battery low-temperature heat, the frequency of charge and discharge electric pulse is constant, and value range is 10Hz~1000Hz;Charging pulse amplitude and discharge pulse amplitude are continually changing, i.e., battery temperature often rises n DEG C, control Unit recalculates charging pulse amplitude and discharge pulse amplitude;Wherein, the value range of n is 1~3.
The effect that is reached of the present invention is:
The present invention carries out inside by applying alternating pulsing current to battery, using the heat that the internal resistance of cell generates to battery The internal resistance of cell is divided into internal charging resistance and electric discharge internal resistance, with a certain constant polarizing voltage by heating with refining during heating For restrictive condition, influence of the cell health state to battery performance is fully considered, battery low-temperature heat pulse amplitude is made to heat Change in the process with the variation of the internal resistance of cell, increase the accuracy that battery low-temperature heat pulse amplitude is chosen and controlled, Battery polarization is acted on the influence to battery aging to control in smaller range, effectively inhibits the heating process of battery to battery The influence of aging.
Description of the drawings
Fig. 1 is a kind of flow chart of battery heating means based on cell health state of the present invention.
Specific implementation mode
For clarity and conciseness, all features of actual implementation mode are not described in the description.However, should Understand, much decisions specific to embodiment must be made during developing any this practical embodiments, so as to reality The objectives of existing developer, for example, meet restrictive condition those of related to system and business, and these restrictive conditions It may be changed with the difference of embodiment.In addition, it will also be appreciated that although development is likely to be very multiple It is miscellaneous and time-consuming, but for the those skilled in the art for having benefited from the disclosure of invention, this development is only example Capable task.
Herein, it is also necessary to which explanation is a bit, in order to avoid having obscured the present invention because of unnecessary details, in application text It illustrate only the apparatus structure closely related with scheme according to the present invention and/or processing step in part, and be omitted and this The little other details of inventive relationship.
A kind of battery heating means based on cell health state of the present embodiment, include the following steps:
Step 1 determines the current health status of battery, executes step 2;
Step 2 acquires the information of battery charge state and battery temperature, executes step 3;
Step 3, judges whether battery temperature T is less than lowest temperature, if executing step 4, otherwise executes step 11;
Step 4 inquires corresponding internal charging resistance according to battery temperature T and state-of-charge in the table of comparisons pre-established With electric discharge internal resistance, step 5 is executed;
Step 5, according to cell health state, charge and discharge internal resistance, according to battery low-temperature heat pulse amplitude basis for selecting, Charging pulse amplitude and discharge pulse amplitude are calculated separately out, step 6 is executed;
Step 6, according to calculated charging pulse amplitude and discharge pulse amplitude and preset pulse frequency, Charge and discharge electric pulse is applied to battery, the heat generated using the internal resistance of cell carries out internal heating to battery, executes step 7;
Step 7, battery temperature detect and are denoted as T1, execute step 8;
Step 8, judges whether battery temperature rises n DEG C, i.e. T1- T whether >=n;If executing step 9, otherwise hold Row step 6;
Step 9, judges whether battery temperature reaches target temperature, i.e. T1Whether >=target temperature;If executing step 10 One, otherwise execute step 10;
Step 10 calculates battery temperature from T to T1Battery charge state knots modification in constant interval, regains battery State-of-charge, and enable battery temperature T=T1, execute step 4;
Step 11, stop pulse current charging and discharging heat battery, and electric vehicle normal operation executes step 1.
Further:In step 1, control unit determines the health status of battery, eight shadows by eight influence factors Ring factor be respectively:Accumulated cycles N;It is accumulative to use duration t;Accumulative ampere-hour handling capacity Q;Internal resistance of cell R;Actual capacity C; Capacity increment value | Δ Q/ Δs V |aver;The voltage value V of cell voltage plateau under standard discharge condition;It is permanent under standard charging state Stream is filled with electricity and is filled with the ratio Q of electricity with constant pressureCC/QCV;Wherein, when a charge and discharge cycles are more than 3 minutes, cycle time Number can just be added up.
Although disclosed embodiment is as above, its content is only to facilitate understand the technical side of the present invention Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not Under the premise of being detached from disclosed core technology scheme, any modification and change can be made in form and details in implementation Change, but protection domain defined by the present invention, the range that the appended claims that must still be subject to limits.

Claims (9)

1. a kind of battery heating means based on cell health state, it is characterised in that:The specific steps are:
Step 1 determines the current health status of battery, executes step 2;
Step 2 acquires the information of battery charge state and battery temperature, executes step 3;
Step 3, judges whether battery temperature T is less than lowest temperature, if executing step 4, otherwise executes step 11;
Step 4 is inquired corresponding internal charging resistance and is put in the table of comparisons pre-established according to battery temperature T and state-of-charge Electric internal resistance executes step 5;
Step 5, according to cell health state, charge and discharge internal resistance, according to battery low-temperature heat pulse amplitude basis for selecting, difference Charging pulse amplitude and discharge pulse amplitude are calculated, step 6 is executed;
Step 6, according to calculated charging pulse amplitude and discharge pulse amplitude and preset pulse frequency, to electricity Pond applies charge and discharge electric pulse, and the heat generated using the internal resistance of cell carries out internal heating to battery, executes step 7;
Step 7, battery temperature detect and are denoted as T1, execute step 8;
Step 8, judges whether battery temperature rises n DEG C, i.e. T1- T whether >=n;It is no to then follow the steps if executing step 9 Six;
Step 9, judges whether battery temperature reaches target temperature, i.e. T1Whether >=target temperature;It is no if executing step 11 Then follow the steps ten;
Step 10 calculates battery temperature from T to T1Battery charge state knots modification in constant interval, regains battery charge State, and enable battery temperature T=T1, execute step 4;
Step 11, stop pulse current charging and discharging heat battery, and electric vehicle normal operation executes step 1;
The internal resistance of cell is divided into internal charging resistance and electric discharge internal resistance, measures different battery temperatures and charged shape in advance by wherein step 5 In internal charging resistance and electric discharge internal resistance and the charge and discharge internal resistance inquiry table of storage in a control unit when state, convenient in heating process In detect in real time and charging pulse amplitude I when calculating separately out battery difference battery temperature and state-of-chargecharWith electric discharge arteries and veins Rush amplitude Idischar
2. a kind of battery heating means based on cell health state according to claim 1, it is characterised in that:Step 1 In, control unit is respectively to determine the health status of battery, eight influence factors by eight influence factors:Accumulative cycle time Number N;It is accumulative to use duration t;Accumulative ampere-hour handling capacity Q;Internal resistance of cell R;Actual capacity C;Capacity increment value | Δ Q/ Δs V |aver; The voltage value V of cell voltage plateau under standard discharge condition;Constant current is filled with electricity and is filled with electricity with constant pressure under standard charging state The ratio Q of amountCC/QCV;Wherein, when a charge and discharge cycles are more than 3 minutes, cycle-index can just be added up.
3. a kind of battery heating means based on cell health state according to claim 2, it is characterised in that:Described eight The calculation formula of a influence factor is respectively:
Wherein NrFor specified accumulated cycles;
Wherein trFor it is specified it is accumulative use duration;
Wherein QrFor specified accumulative ampere-hour handling capacity;
Wherein R0With RfTo refer to internal resistance;
Wherein CrFor rated capacity;
Wherein Z0With ZfTo refer to capacity increment value;
Wherein V0With VfTo refer to platform voltage value;
Wherein G0And GfFor reference value.
4. a kind of battery heating means based on cell health state according to claim 3, it is characterised in that:Each Influence factor has corresponding weight θi, the expression formula of final cell health state is:
SOH=θ1SOH12SOH23SOH34SOH45SOH56SOH67SOH78SOH8
5. a kind of battery heating means based on cell health state according to claim 4, it is characterised in that:Each Influence factor has corresponding weight θiAnd meet following expression formula:
θ12345678=1;
θ12345678=1:1:2:1:2:1:1:1.
6. a kind of battery heating means based on cell health state according to claim 3,4 or 5, it is characterised in that: Determine eight influence factors of cell health state, before every primary cell low-temperature heat, control unit is to SOH1~SOH4Value brush It is new primary;Every Y days, control unit was to SOH5~SOH8Value refresh it is primary;Wherein the value range of Y is 20~40.
7. a kind of battery heating means based on cell health state according to claim 4, it is characterised in that:Set certain One constant polarizing voltage value Vp, polarizing voltage value VpValue range be 0.1~0.4V, due to cell resistance ReqWith battery temperature Change with state-of-charge and change, according to I=Vp/Req, and consider influence of the cell health state to battery performance, final electricity Low-temperature heat pulse amplitude basis for selecting in pond is:
Charging pulse amplitude:Ichar=f (SOH, Vp/Req-char);
Discharge pulse amplitude:Idischar=f (SOH, Vp/Req-dischar)。
8. a kind of battery heating means based on cell health state according to claim 7, it is characterised in that:Step 2 In acquisition state-of-charge be the SOC obtained with the method that Kalman filtering is combined by current integration method0, and in step 10 Battery charge state, be to pass through SOC1=SOC0Δ SOC is obtained, wherein:Battery charge state knots modificationT is the time that battery temperature is consumed from T to T1 in constant interval in formula.
9. a kind of battery heating means based on cell health state according to claim 1, it is characterised in that:In battery During low-temperature heat, the frequency of charge and discharge electric pulse is constant, and value range is 10Hz~1000Hz;Charging pulse amplitude Continually changing with discharge pulse amplitude, i.e. battery temperature often rises n DEG C, control unit recalculate charging pulse amplitude and Discharge pulse amplitude;Wherein, the value range of n is 1~3.
CN201610991417.8A 2016-11-08 2016-11-08 A kind of battery heating means based on cell health state Active CN106532187B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610991417.8A CN106532187B (en) 2016-11-08 2016-11-08 A kind of battery heating means based on cell health state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610991417.8A CN106532187B (en) 2016-11-08 2016-11-08 A kind of battery heating means based on cell health state

Publications (2)

Publication Number Publication Date
CN106532187A CN106532187A (en) 2017-03-22
CN106532187B true CN106532187B (en) 2018-11-06

Family

ID=58351063

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610991417.8A Active CN106532187B (en) 2016-11-08 2016-11-08 A kind of battery heating means based on cell health state

Country Status (1)

Country Link
CN (1) CN106532187B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107015155B (en) * 2017-03-24 2019-09-17 汉宇集团股份有限公司 A kind of measuring method and device of battery of electric vehicle SOH
CN107499148B (en) * 2017-05-22 2019-11-22 宝沃汽车(中国)有限公司 Vehicular battery method for heating and controlling, device, system and vehicle
CN107490768B (en) * 2017-07-07 2020-06-05 哈尔滨理工大学 Lithium battery heating current obtaining method based on capacity attenuation and electric quantity consumption
CN107910617A (en) * 2017-11-15 2018-04-13 西安蜂语信息科技有限公司 Battery heating means, device and battery heating module
CN109830782A (en) * 2017-11-23 2019-05-31 郑州深澜动力科技有限公司 A kind of batteries of electric automobile driving method for heating and controlling
CN110307915A (en) * 2018-03-20 2019-10-08 青岛海信移动通信技术股份有限公司 The processing method and terminal of battery temperature
CN108614218A (en) * 2018-04-19 2018-10-02 中国科学院广州能源研究所 A kind of continuous method for measuring lithium ion battery dynamic internal resistance
CN109449541B (en) * 2018-09-26 2020-09-01 北京交通大学 Variable-frequency variable-amplitude alternating-current low-temperature self-heating method for lithium ion battery
CN109489845A (en) * 2018-11-05 2019-03-19 北京长城华冠汽车科技股份有限公司 A kind of determining method and apparatus for simulating battery core real time temperature in discharge process
CN110085947B (en) * 2019-03-21 2021-03-23 北京理工大学 Rapid self-heating method, system and device for battery monomer
CN110970691A (en) * 2019-05-28 2020-04-07 宁德时代新能源科技股份有限公司 Heating method, control unit and heating circuit of rechargeable battery
CN111048860B (en) * 2019-12-25 2021-03-19 北京理工大学 Direct current and alternating current superposition excitation heating method for power battery

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6094033A (en) * 1998-10-02 2000-07-25 Georgia Tech Research Corporation Battery state of charge detector with rapid charging capability and method
CN102445663B (en) * 2011-09-28 2014-04-02 哈尔滨工业大学 Method for estimating battery health of electric automobile
CN103117421A (en) * 2013-03-07 2013-05-22 清华大学 Low-temperature battery charging method
CN103852727B (en) * 2014-02-14 2017-04-12 清华大学深圳研究生院 Method and device for estimating power battery charge state on line
CN104064836B (en) * 2014-06-17 2016-07-06 北京交通大学 A kind of low temperature self-heating method of lithium ion battery
CN105158699B (en) * 2015-09-14 2018-05-25 北京新能源汽车股份有限公司 The detection method and device of cell health state
CN106025410B (en) * 2016-07-22 2018-07-24 哈尔滨理工大学 A kind of battery variable current heating means for electric vehicle

Also Published As

Publication number Publication date
CN106532187A (en) 2017-03-22

Similar Documents

Publication Publication Date Title
Gallagher et al. Optimizing areal capacities through understanding the limitations of lithium-ion electrodes
CN105870525B (en) The method and device of battery charging
Monem et al. Lithium-ion batteries: Evaluation study of different charging methodologies based on aging process
Li et al. A single particle model with chemical/mechanical degradation physics for lithium ion battery State of Health (SOH) estimation
CN104360285B (en) A kind of battery capacity modification method based on improved ampere-hour integration method
Guo et al. State of health estimation for lithium ion batteries based on charging curves
Sun et al. Estimation of state-of-charge and state-of-power capability of lithium-ion battery considering varying health conditions
Guo et al. Optimal charging method for lithium ion batteries using a universal voltage protocol accommodating aging
CN103424710B (en) For monitoring the method and system that the performance of the aged monomer in set of cells changes
US10126369B2 (en) Secondary battery capacity measurement system and secondary battery capacity measurement method
Fernández et al. Capacity fade and aging models for electric batteries and optimal charging strategy for electric vehicles
Li et al. Study of battery modeling using mathematical and circuit oriented approaches
CN104795857B (en) The implementation method of lithium ion battery balancing energy
EP3226016B1 (en) Detection method of li-plating, method and apparatus for charging secondary battery and secondary battery system using the same
US10291038B2 (en) Passive equalization method and system for lithium iron phosphate battery pack
TWI505528B (en) Increasing energy density in rechargeable lithium battery cells
Liu et al. Integrated system identification and state-of-charge estimation of battery systems
CN103728563B (en) A kind of measuring method of cell health state
CN105552465B (en) It is a kind of that charging method is optimized based on the lithium ion battery of time and temperature
Schiffer et al. Model prediction for ranking lead-acid batteries according to expected lifetime in renewable energy systems and autonomous power-supply systems
CN101882699B (en) Charge and discharge balancing control method for power battery pack
CN101814640B (en) CC-CV charging method for improved power lithium ion battery
JP4872743B2 (en) Secondary battery state estimation device
CN103344917B (en) A kind of lithium battery cycle life method for rapidly testing
Smith Electrochemical control of lithium-ion batteries [applications of control]

Legal Events

Date Code Title Description
PB01 Publication
C06 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