CN102553838A - Battery sorting method based on alternating-current impedance spectrum - Google Patents
Battery sorting method based on alternating-current impedance spectrum Download PDFInfo
- Publication number
- CN102553838A CN102553838A CN2012100335379A CN201210033537A CN102553838A CN 102553838 A CN102553838 A CN 102553838A CN 2012100335379 A CN2012100335379 A CN 2012100335379A CN 201210033537 A CN201210033537 A CN 201210033537A CN 102553838 A CN102553838 A CN 102553838A
- Authority
- CN
- China
- Prior art keywords
- battery
- cpe
- sorting method
- sei
- impedance
- 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
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000001453 impedance spectrum Methods 0.000 title abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 5
- 238000000627 alternating current impedance spectroscopy Methods 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 8
- 238000003487 electrochemical reaction Methods 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000002847 impedance measurement Methods 0.000 claims description 4
- 238000007619 statistical method Methods 0.000 claims description 4
- 101100433727 Caenorhabditis elegans got-1.2 gene Proteins 0.000 claims description 3
- 239000007772 electrode material Substances 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 3
- 230000036541 health Effects 0.000 abstract description 3
- 239000007784 solid electrolyte Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- 102000004310 Ion Channels Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Secondary Cells (AREA)
Abstract
The invention relates to a lithium ion secondary battery, in particular to a sorting method based on an alternating-current impedance spectrum. The method comprises the steps of (1) acquiring the alternating-current impedance spectrum; (2) analyzing equivalent-circuit parameters; and (3) conducting statistic analysis on the equivalent-circuit parameters. In the method provided by the invention, an electrode structure inside a battery system can be detected without damaging a battery, the inner information such as health condition of the battery, the electrolyte concentration, diaphragms and SEI (Solid Electrolyte Interface) membranes are accurately reflected; and according to the information, the coefficient of concordance is calculated by utilizing the principle of statistics, so that the consistency of the inner structure of the sorted battery can be ensured sufficiently, the differences of the sorted batteries are reduced obviously, and the defects of a sorting method in prior arts can be overcome.
Description
Technical field
The present invention relates to lithium rechargeable battery, be specifically related to a kind of battery sorting method in groups, relate in particular to a kind of method for separating based on ac impedance spectroscopy.
Background technology
Under available dynamic battery technology level, energy-storage system must use battery pack to satisfy high power, jumbo requirement.Because there is difference in the parameter value at aspects such as voltage, internal resistance, capacity between same type, same specification, same size battery; Be that battery performance exists uniformity difference; Make power battery pack performance indications when being used for energy-storage system not reach the level of estimating by cell; The service life of battery pack and cell reduced in comparison several times even tens times have a strong impact on the application of energy-storage system.
The reason that the battery problem of inconsistency occurs; Mainly contain that voltage is inconsistent, capacity is inconsistent, internal resistance is inconsistent, self-discharge rate is inconsistent or the like; Existing battery sorting method is a foundation with capacity, internal resistance, the self-discharge rate of battery mostly also; Carry out the sorting of battery, these method for separating are primarily aimed at the surface of battery, and separating effect is general.Carry out sorting with voltage, the method utilizes the voltage uniformity to classify, and the voltage condition when having considered bringing onto load but can't be eliminated the influence of factors such as charged time, loads change and output capacity; Carry out sorting with capacity; Can only explain that the capacity under the condition of setting that discharges and recharges is approaching relatively; But only parameter of discharge capacity of the cell can not reflect the combination property of battery, because other performance indications of cell are inconsistent in the assembly, can cause the battery pack lost of life, capacity to reduce; Overall performance decreases, and is the main cause of damaging in the assembled battery short time.Carry out sorting with the internal resistance of cell; Though guaranteed that battery uses the resistance uniformity at initial stage, after long-term the use, because the deterioration of inside battery ion channel, electron channel; And the active reduction of inside battery chemical substance; All can make internal resistance of cell increase in various degree, increase the weight of the polarization difference property of battery, battery capacity can't in time be discharged; Because this method is under the frequency of 1KHz, to measure, so fully do not reflect the matching degree of battery under various charge status.
Summary of the invention
Above-mentioned defective to the existence of existing battery sorting technology; The present invention proposes a kind of based on electrochemical AC impedance spectrum (Electrochemical impedance spectrum; EIS) battery sorting method is carried out the consistency detection of battery; This method detects the inner electrode structure of battery system under the situation of not damaging battery, accurately reflect battery health degree, electrolyte concentration and barrier film, solid electrolyte interface film SEI internal information.According to these information, utilize Principle of Statistics, calculate consistency coefficient, can guarantee the structural uniformity of the inside battery that sub-elects on this basis, the battery otherness that sub-elects is obviously reduced, thereby solve the deficiency of traditional method for separating.
The objective of the invention is to adopt following technical proposals to realize:
A kind of battery sorting method based on ac impedance spectroscopy, its improvements are that said method comprises the steps:
(1) gathers ac impedance spectroscopy;
(2) resolve equivalent circuit parameter;
(3) the said equivalent circuit parameter of statistical analysis.
A kind of optimized technical scheme provided by the invention is: said step (1) comprising: lithium rechargeable battery is discharged and recharged, and (State of Charge SOC) keeps 100% to make the lithium rechargeable battery state-of-charge; After leaving standstill 6h-12h, the battery under the 100%SOC state is carried out ac impedance measurement, gather ac impedance spectroscopy with electrochemical workstation.
Second optimized technical scheme provided by the invention is: the condition of the AC impedance of said test battery comprises: said battery is in the 100%SOC state-of-charge, and constant voltage mode, frequency are 10kHz～1mHz, amplitude within ± 10mV.
The 3rd optimized technical scheme provided by the invention is: the ac impedance spectroscopy of said battery comprises high frequency circular arc (1kHz～10Hz), intermediate frequency circular arc (10Hz～0.1Hz) and low frequency oblique line (0.1Hz～10mHz).
The 4th optimized technical scheme provided by the invention is: in the said step (2): resolve the equivalent circuit parameter that characterizes inside battery information and comprise: with equivalent circuit said ac impedance spectroscopy is carried out the match of least square method mathematics; Said equivalent circuit parameter comprises battery contact resistance R
H, battery electrode surperficial SEI film R
SEI, the electric double layer capacitance CPE that forms of SEI film surface interface electric double layer
SEIThe reaction resistance R of (because have capacitive properties, but being different from pure electric capacity again), cell electrochemical reaction so represent with normal phase angle element
Ct, lithium ion embeds or deviate from the reaction capacitor C PE that reaction forms
Ct(same because see character with electric capacity from performance; But not pure electric capacity; So also represent with normal phase angle element) and the capacitor C PEw that causes in electrode material bulk diffusion process of lithium ion (same because see character with electric capacity from performance; But be not pure electric capacity, so also represent) with normal phase angle element.
The 5th optimized technical scheme provided by the invention is: said CPE is a normal phase angle element; The impedance expression of said normal phase angle element is following:
Wherein, Y
0Be admittance; N is nondimensional index;
N got 0 o'clock, and element equivalence in the normal phase angle of CPE is a resistance R; N gets the normal phase angle of CPE element equivalence in 0.5 o'clock and is the Warburg diffusion impedance; N got 1 o'clock, and element equivalence in the normal phase angle of CPE is a capacitor C.
The 6th optimized technical scheme provided by the invention is: said battery contact resistance R
HSurperficial SEI film R with battery electrode
SEICorresponding to said high frequency circular arc; The reaction resistance R of said cell electrochemical reaction
CtThe capacity effect CPE that causes with electrochemical reaction
CtCorresponding to said intermediate frequency circular arc; The diffusion capacitance CPEw of said electric charge is corresponding to said low frequency oblique line.
The 7th optimized technical scheme provided by the invention is: said equivalent circuit parameter comprises R
H, R
SEI, R
Ct, Y
0-CPE
SEI, n-CPE
SEI, Y
0-CPE
Ct, n-CPE
Ct, Y
0-CPE
WAnd n-CPE
W
The 8th optimized technical scheme provided by the invention is: said step (3) comprising: the average value mu and the meansquaredeviation that calculate the equivalent circuit parameter of battery cell; Calculate the consistency coefficient ζ of said battery cell, said consistency coefficient add with; The consistency coefficient ζ expression formula of calculating said battery cell is following:
According to the uniformity maximization principle, select the battery cell that adds and be worth maximum, be final sorting schemes.
Compared with prior art, the beneficial effect that reaches of the present invention is:
1, battery sorting method provided by the invention detects the inner electrode structure of battery system under the situation of not damaging battery, accurately reflects health degree, electrolyte concentration, barrier film and the solid electrolyte interface SEI film internal information of battery;
2, battery sorting method provided by the invention is according to the internal information of battery; Utilize Principle of Statistics; Calculate the consistency coefficient of battery; Can guarantee the structural uniformity of the inside battery that sub-elects on this basis, the battery otherness that sub-elects is obviously reduced, thereby solve the deficiency of traditional method for separating.
Description of drawings
Fig. 1 is the flow chart according to the inventive method;
Fig. 2 is according to ac impedance spectroscopy sketch map of the present invention;
Fig. 3 is according to equivalent circuit of the present invention;
Fig. 4 is the AC impedance EIS spectrum according to 41 battery cells of the present invention;
Fig. 5 is the AC impedance EIS spectrum of 10 battery cells selecting according to the present invention.
The specific embodiment
Do further detailed description below in conjunction with the accompanying drawing specific embodiments of the invention.
Battery sorting method based on ac impedance spectroscopy provided by the invention may further comprise the steps, and is as shown in Figure 1:
(1) ac impedance spectroscopy of collection 100%SOC state-of-charge: lithium rechargeable battery is discharged and recharged; Make the lithium rechargeable battery state-of-charge keep the 100%SOC place, leave standstill 6h-12h after, utilize electrochemical workstation battery to be carried out the ac impedance measurement of constant voltage mode; Frequency is between 10kHz～1mHz; Amplitude measures the ac impedance spectroscopy of 100%SOC state-of-charge in ± 10mV, as shown in Figure 2.
Among Fig. 1, impedance representes with Z, and its expression formula representes with plural form, i.e. Z=Z '+Z " j, j is-1 square root.Wherein, transverse axis is Z ', and Z ' is a real, also is the active component of impedance Z, and the longitudinal axis is Z ", Z " be the imaginary part of plural number, also be the reaction component of impedance Z, unit representes with m Ω.
(2) resolve the equivalent circuit parameter value that characterizes inside battery information: the equivalent circuit that proposes with the present invention carries out the match of least square method mathematics to ac impedance spectroscopy, and equivalent circuit is as shown in Figure 3, wherein R
HExpression battery contact resistance, corresponding ac impedance spectroscopy medium-high frequency part and the crossing point of real axis; R
SEIAnd CPE
SEIFilm resistance and the surperficial capacity effect that forms of film of representing the surperficial SEI of battery electrode respectively, the circular arc of corresponding HFS; Rct and CPEct represent the reaction resistance of cell electrochemical reaction and the capacity effect that causes because of electrochemical reaction, the circular arc of corresponding intermediate-frequency section respectively; CPE
WThe diffusion impedance of expression electric charge, the oblique line of corresponding low frequency.
CPE is normal phase angle element (Constant phase element), and the impedance expression at normal phase angle is following:
N got 1 o'clock, and normal phase angle element is exactly pure electric capacity, Y
0=1/R;
N got 0 o'clock, and normal phase angle element is exactly a pure resistance, Y
0=C;
N got 0.5 o'clock, and normal phase angle element is exactly Warburg (being called for short a W) diffusion impedance.
Have 3 resistance R in the equivalent circuit, 3 normal phase angle element CPE, wherein normal phase angle element CPE contains two parameters, i.e. Y
0And n; Therefore equivalent circuit has 9 parameters, through the least square fitting to ac impedance spectroscopy, resolves to the performance of ac impedance spectroscopy one group of 9 parameter value: R of equivalent circuit
H, R
SEI, R
Ct, Y
0-CPE
SEI, n-CPE
SEI, Y
0-CPE
Ct, n-CPE
Ct, Y
0-CPE
W, n-CPE
W
(3) statistical analysis: the ac impedance spectroscopy for the 100%SOC state of x battery cell carries out match and parsing respectively; Obtain x group parameter value; Each of the parameter of battery cell is added up; Select the immediate battery cell of numerical value, calculate the average value mu and the meansquaredeviation of all 9 parameter values of the battery cell of selecting, calculate the consistency coefficient ζ of these battery cells of selecting according to following formula; Then the consistency coefficient of these 9 parameters add with, the expression formula of calculating consistency coefficient ζ is following:
Wherein,
iRepresent the numbering of battery cell.
One has 9 parameters, adds and the result so have 9, according to the uniformity maximization principle, selects that Battery pack monomer that adds and be worth maximum, is final sorting schemes.
Below in conjunction with specific embodiment the present invention is elaborated.
Embodiment
Embodiment provided by the invention carries out sorting to certain 15Ah of producer Soft Roll ferric phosphate lithium cell, and 10 uniformity that process sub-elects from 41 battery cells are battery cell preferably.
The first step, to 41 battery cells with the 1C constant-current charge to 100%SOC, shelve 12h; Under open-circuit voltage; Utilize electrochemical workstation that battery is carried out the ac impedance measurement of constant voltage mode, frequency is between 10kHz～1mHz, and amplitude is in ± 10mV; Measure the AC impedance EIS spectrum of state-of-charge, the ac impedance spectroscopy of 41 battery cells is as shown in Figure 4.As can be seen from Figure 4, the AC impedance EIS of 41 batteries spectrum is very discrete.
Second step, the equivalent circuit that proposes according to the present invention, as shown in Figure 3, AC impedance EIS spectrum is carried out the match of least square method mathematics, resolve the parameter value of each element in the equivalent circuit, as shown in table 1.
Table 1 battery cell EIS composes each parameter fitting value
In the 3rd step, statistical analysis is at first from R
HBeginning is to the R of 41 battery cells
HAdd up, select R
HImmediate 10 battery cells calculate the consistency coefficient of these 10 all 9 fitting parameters of battery cell, itself and be 33.78.Then; Successively in this manner; Other 8 fitting parameters to 41 battery cells are added up, and select corresponding immediate 10 battery cells of each autoregressive parameter, calculate corresponding immediate 10 battery cells of these 8 fitting parameters; Their consistency coefficient sum is respectively 32.50,33.03,33.75,33.13,32.82,32.66,33.19,3.71.Through relatively knowing, with parameters R
HCarry out 10 battery cells that statistical is selected, the consistency coefficient sum is maximum, therefore finally selects 10 battery cells, and the AC impedance EIS spectrum of 10 battery cells is as shown in Figure 5.
Can know that from Fig. 5 the AC impedance EIS of 10 battery cells selecting spectrum is very approaching, explain that than as 41 overall batteries of sample, the uniformity of passing through 10 batteries that sub-elect is significantly improved.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to the restriction of its protection domain; Although the present invention has been carried out detailed explanation with reference to the foregoing description; The those of ordinary skill in affiliated field is to be understood that: those skilled in the art still can carry out all changes, revise or be equal to replacement to the specific embodiment of invention after reading the present invention; These changes, modification perhaps are equal to replacement, and it is all within the claim scope that its application is awaited the reply.
Claims (9)
1. the battery sorting method based on ac impedance spectroscopy is characterized in that said method comprises the steps:
(1) gathers ac impedance spectroscopy;
(2) resolve equivalent circuit parameter;
(3) the said equivalent circuit parameter of statistical analysis.
2. battery sorting method as claimed in claim 1 is characterized in that, said step (1) comprising: lithium rechargeable battery is discharged and recharged, make lithium rechargeable battery state-of-charge SOC keep 100%; After leaving standstill 6h-12h, the battery under the 100%SOC state is carried out ac impedance measurement, gather ac impedance spectroscopy with electrochemical workstation.
3. battery sorting method as claimed in claim 2 is characterized in that, the condition of the AC impedance of said test battery comprises: said battery is in the 100%SOC state-of-charge, and constant voltage mode, frequency are 10kHz～1mHz, amplitude within ± 10mV.
4. battery sorting method as claimed in claim 2 is characterized in that, the ac impedance spectroscopy of said battery comprises high frequency circular arc, intermediate frequency circular arc and low frequency oblique line.
5. battery sorting method as claimed in claim 1 is characterized in that, in the said step (2): resolve the equivalent circuit parameter that characterizes inside battery information and comprise: with equivalent circuit said ac impedance spectroscopy is carried out the match of least square method mathematics; Said equivalent circuit parameter comprises battery contact resistance R
H, battery electrode surperficial SEI film R
SEI, the electric double layer capacitance CPE that forms of SEI film surface interface electric double layer
SEI, cell electrochemical reaction reaction resistance R
Ct, lithium ion embeds or deviate from the reaction capacitor C PE that reaction forms
CtThe capacitor C PEw that causes in electrode material bulk diffusion process with lithium ion.
6. battery sorting method as claimed in claim 5 is characterized in that, said CPE is a normal phase angle element; The impedance expression of said normal phase angle element is following:
Wherein, Y
0Be admittance; N is nondimensional index;
N got 0 o'clock, and element equivalence in the normal phase angle of CPE is a resistance R; N gets the normal phase angle of CPE element equivalence in 0.5 o'clock and is the Warburg diffusion impedance; N got 1 o'clock, and element equivalence in the normal phase angle of CPE is a capacitor C.
7. battery sorting method as claimed in claim 5 is characterized in that, said battery contact resistance R
HSurperficial SEI film R with battery electrode
SEICorresponding to said high frequency circular arc; The reaction resistance R of said cell electrochemical reaction
CtThe capacity effect CPE that causes with electrochemical reaction
CtCorresponding to said intermediate frequency circular arc; The diffusion capacitance CPEw of said electric charge is corresponding to said low frequency oblique line.
8. like each described battery sorting method among the claim 5-7, it is characterized in that said equivalent circuit parameter comprises R
H, R
SEI, R
Ct, Y
0-CPE
SEI, n-CPE
SEI, Y
0-CPE
Ct, n-CPE
Ct, Y
0-CPE
WAnd n-CPE
W
9. battery sorting method as claimed in claim 1 is characterized in that, said step (3) comprising: the average value mu and the meansquaredeviation that calculate the equivalent circuit parameter of battery cell; That calculates said battery cell causes property coefficient ζ, said consistency coefficient add with; The consistency coefficient ζ expression formula of calculating said battery cell is following:
According to the uniformity maximization principle, select the battery cell that adds and be worth maximum, be final sorting schemes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210033537.9A CN102553838B (en) | 2012-02-15 | 2012-02-15 | Battery sorting method based on alternating-current impedance spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210033537.9A CN102553838B (en) | 2012-02-15 | 2012-02-15 | Battery sorting method based on alternating-current impedance spectrum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102553838A true CN102553838A (en) | 2012-07-11 |
| CN102553838B CN102553838B (en) | 2014-05-07 |
Family
ID=46401216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210033537.9A Active CN102553838B (en) | 2012-02-15 | 2012-02-15 | Battery sorting method based on alternating-current impedance spectrum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102553838B (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814292A (en) * | 2012-08-31 | 2012-12-12 | 华南师范大学 | Lithium ion battery consistency matching method and system |
| CN103487762A (en) * | 2013-09-30 | 2014-01-01 | 国家电网公司 | Screening method for lithium ion batteries |
| CN103801521A (en) * | 2014-01-28 | 2014-05-21 | 国家电网公司 | Sorting method of secondary batteries |
| CN103825060A (en) * | 2014-02-28 | 2014-05-28 | 清华大学 | Battery low-temperature preheating and charging method |
| CN103909068A (en) * | 2014-02-28 | 2014-07-09 | 清华大学 | Sorting method for batteries |
| CN104267355A (en) * | 2014-10-29 | 2015-01-07 | 哈尔滨工业大学 | Battery sorting method based on working condition testing and simplified impedance spectroscopy equivalent circuit model |
| CN106124996A (en) * | 2016-07-25 | 2016-11-16 | 北京新能源汽车股份有限公司 | A kind of consistency checking method and device of lithium-ion battery monomer |
| US9859736B2 (en) | 2014-11-07 | 2018-01-02 | Industrial Technology Research Institute | Battery control method based on ageing-adaptive operation window |
| CN107656215A (en) * | 2017-11-10 | 2018-02-02 | 华北电力大学 | A kind of battery functi on method for diagnosing status based on constant current mode impedance spectrum |
| CN108535650A (en) * | 2017-03-01 | 2018-09-14 | 苏州协鑫集成科技工业应用研究院有限公司 | Li-ion batteries piles consistency discrimination method and system |
| CN108872875A (en) * | 2018-07-04 | 2018-11-23 | 力信（江苏）能源科技有限责任公司 | A kind of lithium battery chemistry ac impedance measurement method |
| CN108957323A (en) * | 2017-05-18 | 2018-12-07 | 中信国安盟固利动力科技有限公司 | A kind of judgment method and device of cell health state |
| CN109085212A (en) * | 2018-08-03 | 2018-12-25 | 安徽工业大学 | A kind of quick characterization aluminium anodes material is anti-corrosion and the method for electro-chemical activity |
| CN109143106A (en) * | 2018-08-09 | 2019-01-04 | 南京卡耐新能源技术发展有限公司 | A method of battery consistency is quickly detected by ac impedance measurement |
| CN109731808A (en) * | 2018-11-30 | 2019-05-10 | 天合光能股份有限公司 | The detection method for separating that a kind of pair of lithium battery echelon utilizes |
| CN109765496A (en) * | 2018-12-20 | 2019-05-17 | 西安交通大学 | A kind of cell health state estimation method based on online electrochemical impedance spectrometry |
| CN109762971A (en) * | 2019-01-28 | 2019-05-17 | 浙江大学 | The electrochemical impedance experimental system and its method of solid-liquid contact characterization in quenching process |
| CN109994790A (en) * | 2019-03-27 | 2019-07-09 | 东莞市坤乾新能源科技有限公司 | A kind of dynamic lithium battery group and its group gas-mixing screening method |
| CN110361657A (en) * | 2019-08-09 | 2019-10-22 | 厦门海泰新能技术有限公司 | Battery equivalent circuit model and the method that state-of-charge is estimated based on it |
| CN110376525A (en) * | 2019-07-29 | 2019-10-25 | 国网河南省电力公司电力科学研究院 | A method of evaluating retired ferric phosphate lithium cell life time decay performance |
| CN111398835A (en) * | 2020-03-16 | 2020-07-10 | 联想(北京)有限公司 | Information processing method and system |
| CN111580003A (en) * | 2020-04-08 | 2020-08-25 | 国电南瑞科技股份有限公司 | Impedance spectrum-based secondary battery inconsistency identification method and apparatus |
| CN112230153A (en) * | 2020-10-13 | 2021-01-15 | 东华大学 | Method and device for measuring battery impedance value |
| CN112731179A (en) * | 2020-12-21 | 2021-04-30 | 华南理工大学 | Method and device for rapidly detecting health state of battery, detector and storage medium |
| CN114101118A (en) * | 2021-10-25 | 2022-03-01 | 国网河南省电力公司电力科学研究院 | Lead-acid battery consistency screening method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090160403A1 (en) * | 2007-12-19 | 2009-06-25 | Ntt Docomo, Inc | Battery testing device and battery testing method |
| CN101512365A (en) * | 2006-09-04 | 2009-08-19 | 丰田自动车株式会社 | Secondary battery internal state estimating apparatus and secondary battery internal state estimating method |
| CN101714663A (en) * | 2009-11-19 | 2010-05-26 | 珠海华冠电子科技有限公司 | Automatic formation and separation method of nickel-metal hydride batteries |
| CN102253343A (en) * | 2011-04-21 | 2011-11-23 | 北京世纪瑞尔技术股份有限公司 | Method for estimating state of health and state of charge of storage battery |
-
2012
- 2012-02-15 CN CN201210033537.9A patent/CN102553838B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101512365A (en) * | 2006-09-04 | 2009-08-19 | 丰田自动车株式会社 | Secondary battery internal state estimating apparatus and secondary battery internal state estimating method |
| US20090160403A1 (en) * | 2007-12-19 | 2009-06-25 | Ntt Docomo, Inc | Battery testing device and battery testing method |
| CN101714663A (en) * | 2009-11-19 | 2010-05-26 | 珠海华冠电子科技有限公司 | Automatic formation and separation method of nickel-metal hydride batteries |
| CN102253343A (en) * | 2011-04-21 | 2011-11-23 | 北京世纪瑞尔技术股份有限公司 | Method for estimating state of health and state of charge of storage battery |
Non-Patent Citations (2)
| Title |
|---|
| 《中国优秀硕士学位论文全文数据库 工程科技II辑》 20110630 刘英男 "基于多点频谱法的动力电池一致性研究" , 第6期 * |
| 刘英男: ""基于多点频谱法的动力电池一致性研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814292A (en) * | 2012-08-31 | 2012-12-12 | 华南师范大学 | Lithium ion battery consistency matching method and system |
| CN103487762A (en) * | 2013-09-30 | 2014-01-01 | 国家电网公司 | Screening method for lithium ion batteries |
| CN103801521A (en) * | 2014-01-28 | 2014-05-21 | 国家电网公司 | Sorting method of secondary batteries |
| CN103825060A (en) * | 2014-02-28 | 2014-05-28 | 清华大学 | Battery low-temperature preheating and charging method |
| CN103909068A (en) * | 2014-02-28 | 2014-07-09 | 清华大学 | Sorting method for batteries |
| CN103909068B (en) * | 2014-02-28 | 2016-04-20 | 清华大学 | The method for separating of battery |
| CN103825060B (en) * | 2014-02-28 | 2016-06-29 | 清华大学 | The low-temperature prewarming of battery and charging method |
| CN104267355A (en) * | 2014-10-29 | 2015-01-07 | 哈尔滨工业大学 | Battery sorting method based on working condition testing and simplified impedance spectroscopy equivalent circuit model |
| CN104267355B (en) * | 2014-10-29 | 2017-07-28 | 哈尔滨工业大学 | Battery sorting method based on working condition measurement and simplified impedance spectrum equivalent-circuit model |
| US9859736B2 (en) | 2014-11-07 | 2018-01-02 | Industrial Technology Research Institute | Battery control method based on ageing-adaptive operation window |
| CN106124996A (en) * | 2016-07-25 | 2016-11-16 | 北京新能源汽车股份有限公司 | A kind of consistency checking method and device of lithium-ion battery monomer |
| CN108535650A (en) * | 2017-03-01 | 2018-09-14 | 苏州协鑫集成科技工业应用研究院有限公司 | Li-ion batteries piles consistency discrimination method and system |
| CN108957323A (en) * | 2017-05-18 | 2018-12-07 | 中信国安盟固利动力科技有限公司 | A kind of judgment method and device of cell health state |
| CN108957323B (en) * | 2017-05-18 | 2021-02-02 | 中信国安盟固利动力科技有限公司 | Method and device for judging health state of battery |
| CN107656215A (en) * | 2017-11-10 | 2018-02-02 | 华北电力大学 | A kind of battery functi on method for diagnosing status based on constant current mode impedance spectrum |
| CN108872875A (en) * | 2018-07-04 | 2018-11-23 | 力信（江苏）能源科技有限责任公司 | A kind of lithium battery chemistry ac impedance measurement method |
| CN109085212A (en) * | 2018-08-03 | 2018-12-25 | 安徽工业大学 | A kind of quick characterization aluminium anodes material is anti-corrosion and the method for electro-chemical activity |
| CN109143106A (en) * | 2018-08-09 | 2019-01-04 | 南京卡耐新能源技术发展有限公司 | A method of battery consistency is quickly detected by ac impedance measurement |
| CN109731808A (en) * | 2018-11-30 | 2019-05-10 | 天合光能股份有限公司 | The detection method for separating that a kind of pair of lithium battery echelon utilizes |
| CN109765496A (en) * | 2018-12-20 | 2019-05-17 | 西安交通大学 | A kind of cell health state estimation method based on online electrochemical impedance spectrometry |
| CN109762971A (en) * | 2019-01-28 | 2019-05-17 | 浙江大学 | The electrochemical impedance experimental system and its method of solid-liquid contact characterization in quenching process |
| CN109762971B (en) * | 2019-01-28 | 2020-04-28 | 浙江大学 | Electrochemical impedance experimental system and method for solid-liquid contact characterization in quenching process |
| CN109994790A (en) * | 2019-03-27 | 2019-07-09 | 东莞市坤乾新能源科技有限公司 | A kind of dynamic lithium battery group and its group gas-mixing screening method |
| CN110376525A (en) * | 2019-07-29 | 2019-10-25 | 国网河南省电力公司电力科学研究院 | A method of evaluating retired ferric phosphate lithium cell life time decay performance |
| CN110361657A (en) * | 2019-08-09 | 2019-10-22 | 厦门海泰新能技术有限公司 | Battery equivalent circuit model and the method that state-of-charge is estimated based on it |
| CN110361657B (en) * | 2019-08-09 | 2021-09-14 | 厦门海泰新能技术有限公司 | Method for estimating state of charge of battery |
| CN111398835A (en) * | 2020-03-16 | 2020-07-10 | 联想(北京)有限公司 | Information processing method and system |
| CN111580003A (en) * | 2020-04-08 | 2020-08-25 | 国电南瑞科技股份有限公司 | Impedance spectrum-based secondary battery inconsistency identification method and apparatus |
| CN112230153A (en) * | 2020-10-13 | 2021-01-15 | 东华大学 | Method and device for measuring battery impedance value |
| CN112230153B (en) * | 2020-10-13 | 2021-07-20 | 东华大学 | Method and device for measuring battery impedance value |
| CN112731179A (en) * | 2020-12-21 | 2021-04-30 | 华南理工大学 | Method and device for rapidly detecting health state of battery, detector and storage medium |
| CN114101118A (en) * | 2021-10-25 | 2022-03-01 | 国网河南省电力公司电力科学研究院 | Lead-acid battery consistency screening method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102553838B (en) | 2014-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102553838B (en) | Battery sorting method based on alternating-current impedance spectrum | |
| CN104502859B (en) | The detection of battery charge amount and cell health state, diagnostic method | |
| Monem et al. | Lithium-ion batteries: Evaluation study of different charging methodologies based on aging process | |
| CN110501652A (en) | A kind of retired lithium battery active volume fast evaluation method and assessment device | |
| CN103344917B (en) | A kind of lithium battery cycle life method for rapidly testing | |
| CN108511815B (en) | Method and system for evaluating consistency of lithium ion battery | |
| CN108306065A (en) | Lithium ion battery grouping method and lithium ion battery combo system | |
| CN103176138B (en) | A kind of electric battery preservation & testing method | |
| CN106125001A (en) | The fast evaluation method of electric automobile retired battery module actual capacity | |
| CN101764259A (en) | Method for group matching of power lithium-ion rechargeable battery | |
| CN102590751A (en) | Assessment method and device for consistency of power battery pack | |
| JP2014222603A (en) | Inspection method for battery | |
| JP6337233B2 (en) | Battery evaluation method and battery characteristic evaluation apparatus | |
| CN105572601A (en) | Judgment method for the reason of lithium battery performance degradation | |
| Howey et al. | Impedance measurement for advanced battery management systems | |
| CN105093129B (en) | A kind of energy-storage battery residual capacity detection method | |
| Banaei et al. | Real time condition monitoring in Li-Ion batteries via battery impulse response | |
| CN106033114B (en) | A kind of energy-storage battery health state evaluation method | |
| CN108511823A (en) | A kind of lithium ion battery self discharge SOC state screening techniques | |
| Yang | Bounds of supercapacitor open-circuit voltage change after constant power experiments | |
| CN103176137A (en) | Battery pack health condition evaluation method based on battery SOC (state of charge) inhomogeneity | |
| CN1879251B (en) | Battery float management | |
| CN106004481A (en) | SOH value estimation method for battery pack of hybrid electric vehicle | |
| CN109994790B (en) | Power lithium battery pack and matching and screening method thereof | |
| Chen et al. | Performance of inconsistency in lithium-ion battery packs for battery energy storage systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130626 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130626 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 15, Qinghe Xiaoying East Road, Haidian District, Beijing Co-patentee after: STATE GRID CORPORATION OF CHINA Patentee after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Address before: No. 15, Qinghe Xiaoying East Road, Haidian District, Beijing Co-patentee before: State Grid Corporation of China Patentee before: China Electric Power Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181226 Address after: The third floor of Xujixin Energy Industrial Park R&D Building on the north side of the east section of Yongxing East Road, Xuchang City, Henan Province, 461000 Patentee after: Xuchangxu Relay Energy Storage Technology Co.,Ltd. Address before: No. 15, Qinghe Xiaoying East Road, Haidian District, Beijing Co-patentee before: State Grid Corporation of China Patentee before: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: Building 11, Xuji High tech Electrical City, No. 4138 Sunshine Avenue, Economic and Technological Development Zone, Xuchang City, Henan Province, 461000 Patentee after: Xuchangxu Relay Energy Storage Technology Co.,Ltd. Address before: The third floor of Xujixin Energy Industrial Park R&D Building on the north side of the east section of Yongxing East Road, Xuchang City, Henan Province, 461000 Patentee before: Xuchangxu Relay Energy Storage Technology Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |