CN108267693A - A kind of fast appraisement method of anode material of lithium battery high-temperature storage performance - Google Patents
A kind of fast appraisement method of anode material of lithium battery high-temperature storage performance Download PDFInfo
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- CN108267693A CN108267693A CN201710028308.0A CN201710028308A CN108267693A CN 108267693 A CN108267693 A CN 108267693A CN 201710028308 A CN201710028308 A CN 201710028308A CN 108267693 A CN108267693 A CN 108267693A
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- 238000003860 storage Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000010405 anode material Substances 0.000 title claims abstract description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 15
- 229910052744 lithium Inorganic materials 0.000 title claims description 15
- 238000007667 floating Methods 0.000 claims abstract description 35
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 31
- 238000012360 testing method Methods 0.000 abstract description 25
- 238000011156 evaluation Methods 0.000 abstract description 14
- 230000004913 activation Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 230000014759 maintenance of location Effects 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010281 constant-current constant-voltage charging Methods 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000013178 mathematical model Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- 239000006245 Carbon black Super-P Substances 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910000989 Alclad Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910015009 LiNiCoMnO2 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
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- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention provides a kind of evaluation method of anode material for lithium-ion batteries high-temperature storage performance, and positive electrode is fabricated to lithium ion button half-cell by this method first, after carrying out preliminary filling activation, partial volume, carries out floating charge test to half-cell, obtains test result.The present invention can speculate performance of the positive electrode in the full battery high temperature storage performance of lithium ion by analyzing the test data of half-cell.The evaluation method is simple and practicable, of low cost, and the high-temperature storage performance for positive electrode provides a kind of quickly and effectively evaluation method.
Description
Technical field
The present invention relates to the evaluation methods of secondary lithium battery positive electrode active materials, and in particular to a kind of secondary lithium-ion
Cell positive material LiCoO2、LiMn2O4、LiNiCoMnO2Deng high-temperature storage performance test method.
Background technology
Lithium ion battery has many advantages, such as that platform voltage is high, energy density is high, light-weight, small, environmental pollution is small,
Become current research hotspot.But during use the aerogenesis bulging phenomenon of lithium ion battery constrain to a certain degree lithium from
The application range of sub- battery.Gas in lithium ion battery is mainly the change between positive and negative anodes and electrolyte at high operating temperatures
Learn what reaction generated.At present, the method for test anode material for lithium-ion batteries high-temperature storage performance is mainly complete by making Soft Roll
Battery is tested, and is completed high temperature storage test and is taken around 12 days.And it needs to test the battery before and after high temperature storage respectively
The data such as voltage, thickness, internal resistance, capacity retention ratio and capacity restoration rate, are then handled and are compared to test data, so as to
Analyze the high-temperature storage performance of different positive electrodes.Not only test period is long for this test method, and test step is complicated, and surveys
The lithium ion battery negative material that ambient humidity variation and each producer use when test result is easily made by lithium ion battery
The interference effect of the factors such as difference, there are a degree of uncertainties for test result.
Therefore, it is necessary to a kind of evaluation methods of quick judgement anode material for lithium-ion batteries high-temperature storage performance, are promoted and surveyed
Try efficiency.
Invention content
To solve the above-mentioned problems, accelerate the accuracy and rapidity of positive electrode high-temperature storage performance evaluation, the present invention
A kind of positive electrode high-temperature storage performance evaluation method is proposed, by the half-cell progress charge and discharge electrical measurement made of positive electrode
Examination, shortens the high-temperature storage performance evaluation time of positive electrode to 5 days or so, and reduce evaluation procedure, improves testing efficiency；Separately
Outside, lithium ion battery is eliminated to interfere using the unstability that different negative materials are brought.
To achieve the above object, the present invention puies forward a kind of evaluation method of anode material for lithium-ion batteries high-temperature storage performance,
Include the following steps：
（1）Positive electrode is fabricated to lithium ion button half-cell according to certain method, battery is carried out with I1The electricity of size
Stream is charged to V in advance1Voltage, then with I2The current discharge of size is to V2Voltage.Wherein 0.1C≤I1≤1C；4.3V≤V1≤4.8V；
0.1C≤I2≤1C；2.5V≤V2≤3.0V。
Preferably, 0.1C≤I1≤0.5C。
Preferably, 4.4V≤V1≤4.6V。
Preferably, 0.1C≤I2≤0.5C。
Preferably, 2.7V≤V2≤3.0V。
（2）The battery that rate capability is completed is clipped on charge and discharge fixture, is put into T1It is quiet in the high temperature oven of temperature
Put t1Time, then with I3The electric current of size carries out constant-current charge to V3Voltage, then with constant voltage floating charge t2 Time.Wherein 40
℃≤T1≤90℃；0min≤t1≤60min；0.1C≤I3≤2C；4.3V≤V3≤4.8V ；500min≤t2≤50000min。
Preferably, 45 DEG C≤T1≤80℃。
Preferably, 15min≤t1≤45min。
Preferably, 0.1C≤I3≤1C。
Preferably, 4.4V≤V3≤4.6V。
Preferably, 2000min≤t2≤8000min。
（3）After being completed, the constant-voltage phase charge ratio during all battery floats is obtained respectively from test software
Capacity C1, C2, C3…Cn, average value C is then calculateda=（C1+C2+C3+…+Cn）/n.
（4）Compare the C that different positive electrodes measureaThe size of value.CaIt is worth small positive electrode, high-temperature storage performance is good；Ca
It is worth big positive electrode, high-temperature storage performance is poor.
According to the relationship of floating charge specific capacity and transition metal stripping quantity, transition gold during lithium ion battery half-cell high-temperature floating-charge
The mathematical model for belonging to stripping quantity and capacity is as follows：
M=A*Ca/K
Wherein, M be floating charge when positive electrode in transition metal stripping quantity, CaFor floating charge Average specific capacities, A and K are constant.
According to the relationship of electrolyte gas production in transition metal stripping quantity and lithium ion battery, high-temperature lithium ion battery is established
It is as follows to store gas production deduction mathematical model：
V=Z*E*MCo
Wherein, V is gas production rate inside lithium ion battery, and Z and E are constant.
By MCo=A*Ca/ K substitutes into above-mentioned formula, and it is as follows to show that gas production deduces mathematical model：
V/ Ca=Z*E* A/K
It can be seen that from the formula except gas production V and floating charge specific capacity CaNumerical value Z, E, A, K in addition is constant, thus lithium
The full battery high-temperature storage gas production V of ion and lithium ion half-cell high-temperature floating-charge capacity CaLinear correspondence, with anode material
Expect the wired sexual intercourse of lattice stability.
Lithium ion half-cell high-temperature floating-charge specific capacity CaCharacterization is the lattice stability of positive electrode at high temperature, with electricity
Bulging rate, internal resistance increase rate, high temperature storage capacity retention ratio, the high temperature storage capacity restoration rate in pond have direct linear relationship.
Therefore only need to compare the lithium ion half-cell floating charge capacity data of test, it can speculate height between different positive electrodes
The difference of warm storage performance.
Beneficial effects of the present invention：It only needs to fill positive electrode progress high-temperature floating-charge using lithium ion button half-cell
Electricity, and can speculate according to floating charge volume test data the difference of high-temperature storage performance between different positive electrodes, the evaluation
Method is simple and practicable, of low cost, and evaluation speed is fast.The interference of conventional test methodologies negative material is avoided simultaneously, is contracted significantly
Short positive electrode high-temperature storage performance evaluation time.
Description of the drawings
Fig. 1 is the floating charge time current curve figure of embodiment 1.
Fig. 2 is the floating charge specific capacity of embodiment 1 and lithium battery high temperature storage bulging rate relational graph.
Fig. 3 is the floating charge specific capacity of embodiment 1 and lithium battery high temperature storage internal resistance increase rate relational graph.
Fig. 4 is the floating charge specific capacity of embodiment 1 and lithium battery high temperature storage capacity retention ratio relational graph.
Fig. 5 is the floating charge specific capacity of embodiment 1 and lithium battery high temperature storage capacity restoration rate relational graph.
Fig. 6 is the floating charge specific capacity of embodiment 2 and lithium battery high temperature storage bulging rate relational graph.
Fig. 7 is the floating charge time current curve figure of comparative example 1.
Specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Test method is described as follows.
The assembling of type button half-cell：
According to positive electrode, conductive carbon black, PVDF=95%:2.5%:2.5% mass ratio weighs quantitative material, and it is fixed that PVDF is dissolved in
It measures in NMP, adds in positive electrode and conductive agent, be put into blender and stir 30min, above-mentioned material is uniformly mixed, make
It is made uniform anode sizing agent.The anode sizing agent made is coated uniformly on aluminium foil and is fabricated to pole piece, in 120 DEG C of baking ovens
Drying, it is for use to be fabricated to positive plate；Positive plate and diaphragm, lithium piece, electrolyte etc. are assembled into CR2025 type button half-cells.
The full battery Integration Assembly And Checkout of type Soft Roll：
Lithium electricity positive electrode is made into soft-package battery, thickness 5mm, width 30mm, length 48mm, the battery is with about
The capacity of 600mAh.
1. the making of anode
Positive electrode powder after 970g is coated, 15g Super-P, 15g PVDF and 380g NMP are uniformly mixed, are modulated into
Anode sizing agent.The slurry is applied on aluminium foil, it is dry.Obtained anode plate is cut, is rolled.
2. the making of cathode
By 950g Delaniums, 13g Super-P, 14g CMC, 46g SBR solution and 1200g deionized waters are uniformly mixed, and are adjusted
Negative electrode slurry is made.The slurry is applied on copper foil, it is dry.Obtained negative plates are cut, are rolled.
3. the assembling of battery
Anode plate and negative plates soldering polar ear, and fix lug with high temperature gummed tape.Diaphragm is added in, winding, compacting are put into soft
In alclad plastic film.After sealing, electrolyte is injected, then is stood, preliminary filling, secondary sealing and partial volume.
4. high temperature storage is tested：
Volume test work step before 4.1 high temperature storages：
（1）Constant-current constant-voltage charging：0.2CmA（Final voltage 4.4V terminates electric current 0.02CmA）
（2）It stands：10 minutes
（3）Constant-current discharge：0.2CmA（Final voltage 3.0V）
（4）It stands：10 minutes
（5）Constant-current constant-voltage charging：0.5CmA（Final voltage 4.4V terminates electric current 0.02CmA）
（6）It stands：10 minutes
（7）Constant-current discharge：0.5CmA（Final voltage 3.0V）
（8）It stands：10 minutes
（9）Constant-current constant-voltage charging：0.5CmA（Final voltage 4.4V terminates electric current 0.02CmA）
4.2 pairs of batteries carry out voltage, thickness, inner walkway, and record data；
4.3 are put into battery voltage, internal resistance, thickness, the capacity for after standing a period of time, taking out and testing battery in high temperature oven
The information such as conservation rate and capacity restoration rate.
Volume test work step after 4.4 high temperature storages：
（1）Constant-current discharge：0.5CmA（Final voltage 3.0V）
（2）It stands：10 minutes
（3）Constant-current constant-voltage charging：0.5CmA（Final voltage 4.4V terminates electric current 0.02CmA）
（4）It stands：10 minutes
（5）The first step is returned to start the cycle over 6 times
Embodiment 1
（1）CR2025 type lithium ion button half-cells are respectively prepared in the different positive electrodes of tetra- kinds of A, B, C, D, battery is carried out with
The pre-charge of 0.2C sizes is to 4.45V voltages, then with the current discharge of 0.2C sizes to 3.0V voltages.
（2）The battery that rate capability is completed is clipped on charge and discharge fixture, is put into the high temperature oven of 60 DEG C of temperature
30min is stood, constant-current charge is then carried out to 4.45V voltages with the electric current of 0.2C sizes, then with constant voltage floating charge 3000min, it can
Obtain floating current-time graph, the result is shown in Figure 1.
（3）After being completed, the constant-voltage phase during tetra- kinds of battery floats of A, B, C, D is obtained respectively from test software
Then charge specific capacity is averaged C respectivelya, the results are shown in Table 1.
（4）Compare the different positive electrode floating charge specific capacity C of tetra- kinds of A, B, C, DaSize, CaSmall positive electrode, it is high gentle
It is good to store up performance；CaIt is worth big positive electrode, high-temperature storage performance is poor.
A, B, C, D material button half-cell floating charge specific capacity evaluation data of 1 embodiment 1 of table
It is verified and is compared with full battery high-temperature storage performance test result below：
A, the 053048 full battery of type Soft Roll is made in the different positive electrodes of tetra- kinds of B, C, D, battery is carried out after partial volume voltage, thickness,
Internal resistance, volume test and summary record data, the results are shown in Table 2, then carry out high temperature storage test, and test the electricity after storage
The data such as pressure, thickness, internal resistance, capacity, the results are shown in Table 3, calculate cell thickness change rate in test process, internal resistance increase rate,
Capacity retention ratio, capacity restoration rate, the results are shown in Table 4.
Data record before the full battery high-temperature storage of lithium ion of 2 embodiment 1 of table
Test data after the full battery high-temperature storage of lithium ion of 3 embodiment 1 of table
Test data after the full battery high-temperature storage of lithium ion of 4 embodiment 1 of table
The storage bulging rate of the floating charge specific capacity of embodiment 1 and full battery is made into linear relationship chart, as shown in Figure 2；
The internal resistance increase rate of the floating charge specific capacity of embodiment 1 and full battery is made into linear relationship chart, as shown in Figure 3；
The capacity retention ratio of the floating charge specific capacity of embodiment 1 and full battery is made into linear relationship chart, as shown in Figure 4；
The capacity restoration rate of the floating charge specific capacity of embodiment 1 and full battery is made into linear relationship chart, as shown in Figure 5.
Embodiment 2
（1）CR2025 type lithium ion button half-cells are respectively prepared in the different positive electrodes of tetra- kinds of A, B, C, D, battery is carried out with
The pre-charge of 0.2C sizes is to 4.6V voltages, then with the current discharge of 0.2C sizes to 3.0V voltages.
（2）The battery that rate capability is completed is clipped on charge and discharge fixture, is put into the high temperature oven of 50 DEG C of temperature
30min is stood, constant-current charge is then carried out to 4.6V voltages with the electric current of 0.2C sizes, then with constant voltage floating charge 2000min.
（3）After being completed, the constant-voltage phase during tetra- kinds of battery floats of A, B, C, D is obtained respectively from test software
Then charge specific capacity is averaged C respectivelya。
（4）Compare the different positive electrode floating charge specific capacity C of tetra- kinds of A, B, C, DaThe size of value, CaIt is worth small positive electrode, it is high
Warm storage performance is good；CaIt is worth big positive electrode, high-temperature storage performance is poor.
It is verified and is compared with full battery high-temperature storage performance test result below：
A, the test data in the full battery data reference embodiment 1 of the different positive electrodes of tetra- kinds of B, C, D.
The storage bulging rate of the floating charge specific capacity of embodiment 2 and full battery is made into linear relationship chart, as shown in Figure 6.
Comparative example 1
（1）Tetra- kinds of different positive electrodes of A, B, C, D are fabricated to certain amount CR2025 type lithium ion button half-cells, it is then right
Battery is carried out with the pre-charge of 0.2C sizes to 4.2V voltages and with the current discharge of 0.2C sizes to 3.0V voltages.
（2）The battery that rate capability is completed is clipped on charge and discharge fixture, is put into the high temperature oven of 60 DEG C of temperature
30min is stood, constant-current charge is then carried out to 4.2V voltages with the electric current of 0.2C sizes, then with constant voltage floating charge 10000min, it can
Floating current-time graph is obtained, the results are shown in Figure 5.
（3）After being completed, the constant-voltage phase during tetra- kinds of battery floats of A, B, C, D is obtained respectively from test software
Then charge specific capacity is averaged C respectivelya。
（4）Tetra- kinds of different positive electrode floating charge specific capacities of A, B, C, D are compared, it is impossible to floating charge ratio between resolved materials
The size of capacity.
Floating charge specific capacity data are directly proportional to lithium ion battery storage bulging rate, internal resistance increase rate respectively in Examples 1 and 2
Relationship with lithium ion battery memory capacity conservation rate, capacity restoration rate inversely, illustrates with floating charge specific capacity under high temperature
Increase, cobalt dissolution it is further serious, positive electrode lattice damage aggravation, cathode material structure destroy aerogenesis increase and anode with
Oxidation reaction between electrolyte generates gas and increases, while there is more electrolyte chemical reaction substance on positive electrode surface, high
Gentle storage hydraulic performance decline；
Comparative example 1 is unable to floating charge specific capacity C between resolved materialsaSize.
From above-described embodiment and comparative example it could be assumed that, in a certain range of control condition, anode material between batch
There are linear relativities between the half-cell floating charge specific capacity of material and full battery high-temperature storage performance.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (3)
1. a kind of fast appraisement method of anode material of lithium battery high-temperature storage performance, it is characterised in that include the following steps：
（1）Positive electrode is fabricated to lithium ion button half-cell according to certain method, battery is carried out with I1The electric current of size
It is charged to V in advance1Voltage, then with I2The current discharge of size is to V2Voltage, wherein 0.1C≤I1≤1C；4.3V≤V1≤4.8V；
0.1C≤I2≤1C；2.5V≤V2≤3.0V；
（2）The battery that rate capability is completed is clipped on charge and discharge fixture, is put into T1T is stood in the high temperature oven of temperature1's
Time, then with I3The electric current of size carries out constant-current charge to V3Voltage, then with constant voltage floating charge t2 Time, 2. wherein 40 DEG C
≤T1≤90℃；0min≤t1≤60min；0.1C≤I3≤2C；4.3V≤V3≤4.8V ；500min≤t2≤50000min；
（3）After being completed, the constant-voltage phase charge specific capacity during all battery floats is obtained respectively from test software
C1, C2, C3…Cn, average value C is then calculateda=（C1+C2+C3+…+Cn）/n；
（4）Compare the C that different positive electrodes measureaThe size of value, CaIt is worth small positive electrode, high-temperature storage performance is good；CaValue is big
Positive electrode, high-temperature storage performance is poor.
2. the fast appraisement method of anode material of lithium battery high-temperature storage performance according to claim 1, it is characterised in that step
Suddenly（1）The I1 、V1、 I2 、V2Respectively 0.1C≤I1≤ 0.5C, 4.4V≤V1≤ 4.6V, 0.1C≤I2≤ 0.5C,
2.7V≤V2≤3.0V。
3. the fast appraisement method of anode material of lithium battery high-temperature storage performance according to claim 1, it is characterised in that step
Suddenly（2）The T1、t1、I3、 V3、t2Respectively 45 DEG C≤T1≤ 80 DEG C, 15min≤t1≤ 45min, 0.1C≤I3≤ 1C,
4.4V≤V3≤ 4.6V, 2000min≤t2≤8000min。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658473A (en) * | 2019-12-02 | 2020-01-07 | 湖南长远锂科股份有限公司 | Method for evaluating storage performance of lithium ion battery anode material |
| CN111722120A (en) * | 2020-06-04 | 2020-09-29 | 国联汽车动力电池研究院有限责任公司 | Method and system for evaluating reversible lithium consumption of lithium ion battery |
| CN112557920A (en) * | 2020-11-20 | 2021-03-26 | 天津力神电池股份有限公司 | Method for rapidly evaluating stability of high-voltage lithium ion battery system |
| CN112731174A (en) * | 2020-12-25 | 2021-04-30 | 惠州市豪鹏科技有限公司 | Method for evaluating full-charge and shallow-discharge performance of lithium battery positive electrode material |
| CN112858922A (en) * | 2021-02-06 | 2021-05-28 | 苏州酷卡环保科技有限公司 | Performance detection method of lithium ion battery |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002350521A (en) * | 2001-03-16 | 2002-12-04 | Yuasa Corp | Apparatus and method of diagnosing storage battery life |
| CN1732581A (en) * | 2002-10-31 | 2006-02-08 | 三菱化学株式会社 | Additive for positive electrode material for lithium secondary battery, positive electrode material for lithium secondary battery, and positive electrode and lithium secondary battery using the positi |
| KR20100019660A (en) * | 2008-08-11 | 2010-02-19 | 주식회사 엘지화학 | Life prediction apparatus and the life prediction method using the same |
| CN102236078A (en) * | 2010-04-20 | 2011-11-09 | 深圳市比克电池有限公司 | Method for determining cycle performance of lithium ion battery |
| CN102610792A (en) * | 2012-04-01 | 2012-07-25 | 东莞新能源科技有限公司 | Detecting method of specific capacity of negative electrode material of lithium ion battery after circulation |
| CN103018301A (en) * | 2012-12-18 | 2013-04-03 | 深圳市金润能源材料有限公司 | Quick test technique for electrochemical performances of carbon anode materials |
| JP2013176271A (en) * | 2012-02-27 | 2013-09-05 | Honda Motor Co Ltd | Determination device for determining memory effect of battery and discharge control device of battery |
| CN103472401A (en) * | 2013-09-09 | 2013-12-25 | 东莞新能源科技有限公司 | Detection method for specific capacity of lithium ion battery negative electrode active material after circulation |
| DE102012012633A1 (en) * | 2012-06-26 | 2014-01-02 | Daimler Ag | Method for optimization of operating window of lithium-ion cell of battery of electric vehicle, involves measuring temperature of electrode and determining anode potential, and regulating maximum power and performance values of cell |
| US9170305B2 (en) * | 2011-04-07 | 2015-10-27 | Samsung Sdi Co., Ltd. | Battery management system and method of controlling the same |
| CN105988085A (en) * | 2015-02-06 | 2016-10-05 | 国家电网公司 | Health state assessment method of retired electric automobile power cell |
| CN106154172A (en) * | 2016-06-17 | 2016-11-23 | 清华大学 | The quantitative estimation method of lithium-ion-power cell internal short-circuit degree |
-
2017
- 2017-01-16 CN CN201710028308.0A patent/CN108267693B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002350521A (en) * | 2001-03-16 | 2002-12-04 | Yuasa Corp | Apparatus and method of diagnosing storage battery life |
| CN1732581A (en) * | 2002-10-31 | 2006-02-08 | 三菱化学株式会社 | Additive for positive electrode material for lithium secondary battery, positive electrode material for lithium secondary battery, and positive electrode and lithium secondary battery using the positi |
| KR20100019660A (en) * | 2008-08-11 | 2010-02-19 | 주식회사 엘지화학 | Life prediction apparatus and the life prediction method using the same |
| CN102236078A (en) * | 2010-04-20 | 2011-11-09 | 深圳市比克电池有限公司 | Method for determining cycle performance of lithium ion battery |
| US9170305B2 (en) * | 2011-04-07 | 2015-10-27 | Samsung Sdi Co., Ltd. | Battery management system and method of controlling the same |
| JP2013176271A (en) * | 2012-02-27 | 2013-09-05 | Honda Motor Co Ltd | Determination device for determining memory effect of battery and discharge control device of battery |
| CN102610792A (en) * | 2012-04-01 | 2012-07-25 | 东莞新能源科技有限公司 | Detecting method of specific capacity of negative electrode material of lithium ion battery after circulation |
| DE102012012633A1 (en) * | 2012-06-26 | 2014-01-02 | Daimler Ag | Method for optimization of operating window of lithium-ion cell of battery of electric vehicle, involves measuring temperature of electrode and determining anode potential, and regulating maximum power and performance values of cell |
| CN103018301A (en) * | 2012-12-18 | 2013-04-03 | 深圳市金润能源材料有限公司 | Quick test technique for electrochemical performances of carbon anode materials |
| CN103472401A (en) * | 2013-09-09 | 2013-12-25 | 东莞新能源科技有限公司 | Detection method for specific capacity of lithium ion battery negative electrode active material after circulation |
| CN105988085A (en) * | 2015-02-06 | 2016-10-05 | 国家电网公司 | Health state assessment method of retired electric automobile power cell |
| CN106154172A (en) * | 2016-06-17 | 2016-11-23 | 清华大学 | The quantitative estimation method of lithium-ion-power cell internal short-circuit degree |
Non-Patent Citations (1)
| Title |
|---|
| 张勇: "V_2O_5正极材料及其复合物的制备与研究", 《中国优秀博硕士学位论文全文数据库 (博士) 工程科技Ⅱ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658473A (en) * | 2019-12-02 | 2020-01-07 | 湖南长远锂科股份有限公司 | Method for evaluating storage performance of lithium ion battery anode material |
| CN110658473B (en) * | 2019-12-02 | 2020-04-28 | 湖南长远锂科股份有限公司 | Method for evaluating storage performance of lithium ion battery anode material |
| CN111722120A (en) * | 2020-06-04 | 2020-09-29 | 国联汽车动力电池研究院有限责任公司 | Method and system for evaluating reversible lithium consumption of lithium ion battery |
| CN112557920A (en) * | 2020-11-20 | 2021-03-26 | 天津力神电池股份有限公司 | Method for rapidly evaluating stability of high-voltage lithium ion battery system |
| CN112731174A (en) * | 2020-12-25 | 2021-04-30 | 惠州市豪鹏科技有限公司 | Method for evaluating full-charge and shallow-discharge performance of lithium battery positive electrode material |
| CN112858922A (en) * | 2021-02-06 | 2021-05-28 | 苏州酷卡环保科技有限公司 | Performance detection method of lithium ion battery |
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