CN107611505A - A kind of decision method and its system of secondary accumulator battery health degree - Google Patents
A kind of decision method and its system of secondary accumulator battery health degree Download PDFInfo
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- CN107611505A CN107611505A CN201710802391.2A CN201710802391A CN107611505A CN 107611505 A CN107611505 A CN 107611505A CN 201710802391 A CN201710802391 A CN 201710802391A CN 107611505 A CN107611505 A CN 107611505A
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Abstract
The present invention relates to a kind of decision method and its system of secondary accumulator battery health degree, this method includes the relevant information for obtaining battery；The charging feature section of battery is obtained according to relevant information；Judge whether the charging voltage of battery is equal to the threshold value in charging feature section；If so, obtain the charging capacity or rechargeable energy of battery；Judge whether the charging voltage of battery is equal to the end point values in charging feature section；If so, the degree of aging of battery is obtained according to the charging capacity or rechargeable energy.The present invention is by determining charging feature section, obtain charge capacity or energy of the battery in charging feature section, relative to the rate of change of normative reference value, the degree of aging of battery is obtained with this, realize solve the decision problem of battery degree of aging, it is less demanding to decision condition, temperature is taken into account, reduce the difficulty of commercial applications and judge difficulty, be easy to detect the current degree of aging of battery.
Description
Technical field
The present invention relates to secondary accumulator battery, more specifically refer to a kind of secondary accumulator battery health degree decision method and
Its system.
Background technology
In recent years, dependence of the people to the energy starts change occurred, gradually transfers electrification to from fossil fuel, causes
The maximum key factor of this turnover is the progress of secondary accumulator battery, since generation nineteen ninety, the secondary electric power storage based on lithium
Pond is commercialized, and miscellaneous accumulator product application is released successively, and as the evolution in epoch, new electrode material are brought up
The secondary accumulator battery of more high-energy-density, and possess more efficient life cycle, even if in this way, the decline of accumulator property still
Very big application puzzlement is so brought, the battery of aging is more seriously difficult to estimate its storage in addition to energy storage density reduces
Electricity condition (State of Charge) so that battery management system occurs serious erroneous judgement to this battery, influences user's body
Test, or even trigger safety problem.
For without the battery for retaining historical record, want to learn its current degree of aging be it is very difficult, the most
Effective manner is discharge test method, and this method needs just have reference value under the experiment condition in off line, specially, and this is straight
Connect and have impact on practical commercial application.And method, such as internal resistance method are judged in other agings, also because battery status fluctuations
Greatly, the difference of electric power storage state or temperature can all influence the performance of internal resistance so that the relation of internal resistance and degree of aging presents highly non-
Linear state, improve the difficulty of judgement.
Therefore, it is necessary to design a kind of decision method of secondary accumulator battery health degree, realize solve battery aging journey
The decision problem of degree, reduce the difficulty of commercial applications and judge difficulty, be easy to detect the current degree of aging of battery.
The content of the invention
A kind of the defects of it is an object of the invention to overcome prior art, there is provided judgement side of secondary accumulator battery health degree
Method and its system.
To achieve the above object, the present invention uses following technical scheme：A kind of judgement side of secondary accumulator battery health degree
Method, methods described include：
Obtain the relevant information of battery；
The charging feature section of battery is obtained according to relevant information；
Judge whether the charging voltage of battery is equal to the threshold value in charging feature section；
If so, obtain the charging capacity or rechargeable energy of battery；
Judge whether the charging voltage of battery is equal to the end point values in charging feature section；
If so, the degree of aging of battery is obtained according to the charging capacity or rechargeable energy.
Its further technical scheme is：The step of obtaining the relevant information of battery, including step in detail below：
Obtain the material category information and rated capacitance or rated energy of battery；
Obtain Current Temperatures information, charging modes and the charging current or charge power of battery.
Its further technical scheme is：The step of obtaining the charging capacity or rechargeable energy of battery, specifically usesThe charging capacity of battery is obtained, or is usedObtain the rechargeable energy of battery；Wherein,
I represents charging current；Symbol P represents charge power；Symbol Δ t represents sensor sample time interval.
Its further technical scheme is：The step of the degree of aging of battery is obtained according to the charging capacity or rechargeable energy
Suddenly, including in detail below step：
Obtain the theoretical initial charge capacity of setting or theoretical initial charge energy；
Obtain the ratio or the rechargeable energy and theoretical initial charge of the charging capacity and theoretical initial charge capacity
The ratio of energy；
Ratio is multiplied by the setting coefficient of upper level, obtains percentage, forms the degree of aging value of battery.
Present invention also offers a kind of decision-making system of secondary accumulator battery health degree, including information acquisition unit, section
Acquiring unit, starting point judging unit, charge volume acquiring unit, endpoint unit and degree of aging acquiring unit；
Described information acquiring unit, for obtaining the relevant information of battery；
The section acquiring unit, for obtaining the charging feature section of battery according to relevant information；
The starting point judging unit, for judging whether the charging voltage of battery is equal to the starting point in charging feature section
Value；
The charge volume acquiring unit, for if so, obtaining the charging capacity or rechargeable energy of battery；
The endpoint unit, for judging whether the charging voltage of battery is equal to the terminal in charging feature section
Value；
The degree of aging acquiring unit, for if so, obtaining battery according to the charging capacity or rechargeable energy
Degree of aging.
Its further technical scheme is：Described information acquiring unit includes Back ground Information acquisition module and current information obtains
Modulus block；
The Back ground Information acquisition module, for obtaining the material category information and rated capacitance or specified of battery
Energy；
The current information acquisition module, for obtaining Current Temperatures information, charging modes and the charging electricity of battery
Stream or charge power.
Its further technical scheme is：The degree of aging acquiring unit includes initial value acquisition module, ratio obtains mould
Block and degree value acquisition module；
The initial value acquisition module, for the theoretical initial charge capacity for obtaining setting or theoretical initial charge energy；
The ratio acquisition module, for obtaining the ratio of the charging capacity and theoretical initial charge capacity or described filling
The ratio of electric flux and theoretical initial charge energy；
The degree value acquisition module, for ratio to be multiplied by the setting coefficient of upper level, percentage is obtained, forms electric power storage
The degree of aging value in pond.
Compared with the prior art, the invention has the advantages that：A kind of judgement of secondary accumulator battery health degree of the present invention
Method, by material category, rated capacitance or the rated energy, Current Temperatures, charging modes and the charging that obtain battery
Electric current or charge power, charging feature section is determined, obtains charge capacity or energy of the battery in charging feature section,
Relative to the rate of change of normative reference value, the degree of aging of battery is obtained with this, realizes solve sentencing for battery degree of aging
Determine problem, it is less demanding to decision condition, temperature is taken into account, reduces the difficulty of commercial applications and judges difficulty, just
In the current degree of aging of detection battery.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the decision method for secondary accumulator battery health degree that the specific embodiment of the invention provides；
Fig. 2 is the flow chart of the relevant information for the acquisition battery that the specific embodiment of the invention provides；
Fig. 3 is the aging that battery is obtained according to the charging capacity or rechargeable energy that the specific embodiment of the invention provides
The flow chart of degree；
Fig. 4 is a kind of structural frames of the decision-making system for secondary accumulator battery health degree that the specific embodiment of the invention provides
Figure；
Fig. 5 is the structured flowchart for the information acquisition unit that the specific embodiment of the invention provides；
Fig. 6 is the structured flowchart for the degree of aging acquiring unit that the specific embodiment of the invention provides；
Fig. 7 is the battery cycle performance capacity of experiment decay pattern that the specific embodiment of the invention provides；
Fig. 8 is that the battery cycle performance that the specific embodiment of the invention provides is tested in the Comparative result that temperature is 20 DEG C
Figure；
Fig. 9 is that the battery cycle performance that the specific embodiment of the invention provides is tested in the Comparative result that temperature is 40 DEG C
Figure；
Figure 10 is the characteristic interval test value form for the brand-new battery that the specific embodiment of the invention provides.
Embodiment
In order to more fully understand the technology contents of the present invention, technical scheme is entered with reference to specific embodiment
One step introduction and explanation, but it is not limited to this.
Specific embodiment as shown in Fig. 1~10, a kind of judgement for secondary accumulator battery health degree that the present embodiment provides
Method, secondary accumulator battery product, energy storage device, the means of transport with secondary accumulator battery driven by power can be used in, realize solution
The certainly decision problem of battery degree of aging, reduce the difficulty of commercial applications and judge difficulty, be easy to detection battery to work as
Preceding degree of aging.
As shown in figure 1, present embodiments providing a kind of decision method of secondary accumulator battery health degree, this method includes：
S1, the relevant information for obtaining battery；
S2, the charging feature section according to relevant information acquisition battery；
S3, judge whether the charging voltage of battery is equal to the threshold value in charging feature section；
S4, if so, obtain battery charging capacity or rechargeable energy；
S5, judge whether the charging voltage of battery is equal to the end point values in charging feature section；
S6, if so, obtaining the degree of aging of battery according to the charging capacity or rechargeable energy.
Further, above-mentioned S3 steps, judge battery charging voltage whether be equal to charging feature section rise
After the step of point value, in addition to：
If it is not, then S31, continue waiting for, and return to the S3 steps.
Above-mentioned S5 steps, judge the step of whether charging voltage of battery is equal to the end point values in charging feature section it
Afterwards, in addition to：
If it is not, then S51, judge the charging voltage of battery whether in the charging feature section；
If the charging voltage of battery is located in charging feature section, S4 steps are returned；
If the charging voltage of battery is not in charging feature section, into end step.
Further, above-mentioned S1 steps, the step of obtaining the relevant information of battery, including step in detail below：
S11, the material category information and rated capacitance or rated energy for obtaining battery；
S12, Current Temperatures information, charging modes and the charging current or charge power for obtaining battery.
For above-mentioned S11 steps, the material category of battery is obtained, is to determine the charging feature area of battery
Between, the charging feature section of the battery of different materials is different, charge power of the battery in 1Erate that material is NCM/C
Under, its charging feature section is 4.05~4.18Volt；Material be NCA/C battery under 0.5Erate charge power,
Its charging feature section is 3.80~4.00Volt；Material be LFP/C battery under 0.5Erate charge power, it fills
Electrical feature section is 3.53~3.60Volt；The charging feature section of the battery of other materials needs to test and to experimental result
Carry out analysis acquisition.Acquisition for rated capacitance or rated energy, be in order to obtain the battery of this type number its
The normative reference value in charging feature section.
For above-mentioned S12 steps, because temperature has an impact to the degree of aging of secondary accumulator battery, therefore, it is necessary to obtain
Current temperature information, with the amendment entered to above-mentioned normative reference value on trip temperature, the degree of accuracy of judgement is improved with this.And not
Same charging modes can influence the voltage change in charging feature section, and the voltage change in charging feature section can correspond to different ginsengs
Examine standard value.Determine that charging modes then can determine that normative reference value.Charging current or charge power are obtained, can be used to count in filling
The capacitance or electric flux being charged into electrical feature section.
For above-mentioned S2 steps, charging feature section Criterion of Selecting is as follows：In permanent Huan borders Wen Du ﹑ and invariable power or perseverance
Under the experimental condition of electric current charging, capture one section of trickle charge section, the voltage versus capacity in the section or electric flux it is secondary
Derivative value is less than or equal to φ, and first order derivative value is more than or equal to ψ, and the variable quantity of voltage is more than or equal to κ, wherein symbol φ ﹑ ψ ﹑ κ
A setting constant is represented, meets charging feature section of the continuum preferably as the battery of this condition.
Further, above-mentioned S3 steps, as long as being in charging voltage in charging feature section, can just utilize secondary
In the expected charging process of battery, the degree of aging of the battery is obtained.
In addition, for above-mentioned S4 steps, the step of obtaining the charging capacity or rechargeable energy of battery, specifically useThe charging capacity of battery is obtained, or is usedObtain the rechargeable energy of battery；Its
In, I represents charging current；Symbol P represents charge power；Symbol Δ t represents sensor sample time interval.
For above-mentioned S5 steps, specifically filled to obtain charging voltage and be changed to from the threshold value in charging feature section
The charging capacity or rechargeable energy of the end point values in electrical feature section, two are obtained with the charging capacity during this or rechargeable energy
The health degree of secondary battery.
Further, above-mentioned S6 steps, the aging journey of battery is obtained according to the charging capacity or rechargeable energy
The step of spending, including step in detail below：
S61, the theoretical initial charge capacity for obtaining setting or theoretical initial charge energy；
S62, the acquisition charging capacity and the ratio of theoretical initial charge capacity or the rechargeable energy and theory are initial
The ratio of rechargeable energy；
S63, the setting coefficient that ratio is multiplied by upper level, percentage is obtained, form the degree of aging value of battery.
For above-mentioned S61 steps, the theoretical initial charge capacity of setting or theoretical initial charge energy i.e. above-mentioned
Normative reference value, be specifically, using experimental data and linear interpolation come the database for the value that theorizes, then obtain temperature letter
Breath, charging current or power search the corresponding numerical value recorded of this database, and the form of database can refer to Figure 10.
It is specifically special using certain charging in the expected charging process of secondary accumulator battery, is measured for above-mentioned S62 steps
Levy in section, its voltage compares relative to capacity or the rate of change of energy, then by this rate of change with initial value, obtains the electric power storage
The degree of aging in pond.
For above-mentioned S63 steps, above-mentioned initialization system is that the coefficient obtained, tool are tested according to battery cycle performance
Body, obtained according to Fig. 7, Fig. 8 and Fig. 9.
Such as：Accumulator positive/negative electrode material is NCM/C, rated capacity 7.2Ah, rated energy 25.92Wh, is filled
Electrically charge, power 25.92W, charged equivalent to 1Erate for invariable power.The charging feature of the battery of this material type
Section is 4.05~4.18Volt.When recording each charge and discharge cycles, in the energy variation of battery in charging feature section, adjust
Compared with theoretical initial value, and this ratio is multiplied by the degree of aging that the battery is represented after an empirical coefficient.It is calculated
Formula is as follows：Wherein accord with HnRepresent current degree of aging percentage；γ is experience weighted number,
The battery of different materials has the weight values of difference, and its value is all between 0~2；W0(T, E) is normative reference value, i.e., brand-new electricity
Charging feature section test value of the pond in T temperature and the charging of E power, i.e. electric energy quantitative change of the brand new cells in feature charging section
Change result of the test, as shown in Figure 10；WnFor the charging capacity or rechargeable energy of this measurement.This can be obtained by this calculating formula
The current degree of aging of battery.
The decision method of above-mentioned a kind of secondary accumulator battery health degree, by the material category, specified for obtaining battery
Capacitance or rated energy, Current Temperatures, charging modes and charging current or charge power, determine charging feature section, obtain
Charge capacity or energy of the battery in charging feature section are taken, relative to the rate of change of normative reference value, is obtained with this
The degree of aging of battery, realize solve the decision problem of battery degree of aging, it is less demanding to decision condition, temperature is examined
Including worry, reduce the difficulty of commercial applications and judge difficulty, be easy to detect the current degree of aging of battery.
As shown in figure 4, the present embodiment additionally provides a kind of decision-making system of secondary accumulator battery health degree, it includes information
Acquiring unit 1, section acquiring unit 2, starting point judging unit 3, charge volume acquiring unit 4, endpoint unit 5 and aging journey
Spend acquiring unit 6.
Information acquisition unit 1, for obtaining the relevant information of battery.
Section acquiring unit 2, for obtaining the charging feature section of battery according to relevant information.Select in charging feature section
Take criterion as follows：Under the experimental condition of permanent environment temperature and invariable power or constant current charge, one section of trickle charge area is captured
Between, the voltage versus capacity in the section or the second derivative value of electric flux are less than or equal to φ, and first order derivative value is more than or equal to ψ,
And the variable quantity of voltage is more than or equal to κ, wherein symbol φ ﹑ ψ ﹑ κ represent that one sets constant, and the continuum for meeting this condition is preferred
Charging feature section as the battery.
Starting point judging unit 3, for judging whether the charging voltage of battery is equal to the threshold value in charging feature section；
Charge volume acquiring unit 4, for if so, obtaining the charging capacity or rechargeable energy of battery；
Endpoint unit 5, for judging whether the charging voltage of battery is equal to the end point values in charging feature section；
Degree of aging acquiring unit 6, for if so, obtaining the aging of battery according to the charging capacity or rechargeable energy
Degree.
In addition, above-mentioned information acquisition unit 1 includes Back ground Information acquisition module 11 and current information acquisition module 12.
Back ground Information acquisition module 11, for obtaining the material category information and rated capacitance or specified energy of battery
Amount；
Current information acquisition module 12, for obtaining Current Temperatures information, charging modes and the charging current of battery
Or charge power.
Back ground Information acquisition module 11 obtains the material category of battery, is to determine the charging feature area of battery
Between, the charging feature section of the battery of different materials is different, charge power of the battery in 1Erate that material is NCM/C
Under, its charging feature section is 4.05~4.18Volt；Material be NCA/C battery under 0.5Erate charge power,
Its charging feature section is 3.80~4.00Volt；Material be LFP/C battery under 0.5Erate charge power, it fills
Electrical feature section is 3.53~3.60Volt；The charging feature section of the battery of other materials needs to test and to experimental result
Carry out analysis acquisition.Acquisition for rated capacitance or rated energy, be in order to obtain the battery of this type number its
The normative reference value in charging feature section.
For above-mentioned current information acquisition module 12, because temperature has shadow to the degree of aging of secondary accumulator battery
Ring, therefore, it is necessary to obtain current temperature information, with the amendment entered to above-mentioned normative reference value on trip temperature, improved with this
The degree of accuracy of judgement.And different charging modes can influence the voltage change in charging feature section, the voltage in charging feature section
Change can correspond to different normative reference values.Determine that charging modes then can determine that normative reference value.Obtain charging current or charging
Power, it can be used to count in the capacitance or electric flux that are charged into charging feature section.
For starting point judging unit 3, as long as being in charging voltage in charging feature section, secondary storage can be just utilized
In the expected charging process of battery, the degree of aging of the battery is obtained.
Charge volume acquiring unit 4 obtains the charging capacity or rechargeable energy of battery, specifically uses
The charging capacity of battery is obtained, or is usedObtain the rechargeable energy of battery；Wherein, I represents charging electricity
Stream；Symbol P represents charge power；Symbol Δ t represents sensor sample time interval.
Endpoint unit 5 is specifically to be changed to charging spy from the threshold value in charging feature section to obtain charging voltage
The charging capacity or rechargeable energy of the end point values in section are levied, secondary storage is obtained with the charging capacity during this or rechargeable energy
The health degree of battery.
Further, above-mentioned degree of aging acquiring unit 6 includes initial value acquisition module 61, ratio acquisition module 62
And degree value acquisition module 63.
Initial value acquisition module 61, for the theoretical initial charge capacity for obtaining setting or theoretical initial charge energy.If
Fixed theoretical initial charge capacity or theoretical initial charge energy i.e. above-mentioned normative reference value, it is specifically, utilizes experiment
Data and linear interpolation are come the database for the value that theorizes, then obtain temperature information, charging current or power to search this number
According to the corresponding numerical value recorded of place, the form of database can refer to Figure 10.
Ratio acquisition module 62, for the ratio for obtaining the charging capacity and theoretical initial charge capacity or the charging
The ratio of energy and theoretical initial charge energy.Specifically utilize in the expected charging process of secondary accumulator battery, measure certain and fill
In electrical feature section, its voltage compares relative to capacity or the rate of change of energy, then by this rate of change with initial value, is somebody's turn to do
The degree of aging of battery.
Degree value acquisition module 63, for ratio to be multiplied by the setting coefficient of upper level, percentage is obtained, forms battery
Degree of aging value.Above-mentioned initialization system be according to battery cycle performance test obtain coefficient, specifically, according to Fig. 7,
Fig. 8 and Fig. 9 is obtained.
Such as：Accumulator positive/negative electrode material is NCM/C, rated capacity 7.2Ah, rated energy 25.92Wh, is filled
Electrically charge, power 25.92W, charged equivalent to 1Erate for invariable power.The charging feature of the battery of this material type
Section is 4.05~4.18Volt.When recording each charge and discharge cycles, in the energy variation of battery in charging feature section, adjust
Compared with theoretical initial value, and this ratio is multiplied by the degree of aging that the battery is represented after an empirical coefficient.It is calculated
Formula is as follows：Wherein accord with HnRepresent current degree of aging percentage；γ is experience weighted number,
The battery of different materials has the weight values of difference, and its value is all between 0~2；W0(T, E) is normative reference value, i.e., brand-new electricity
Charging feature section test value of the pond in T temperature and the charging of E power, i.e. electric energy quantitative change of the brand new cells in charging feature section
Change result of the test, as shown in Figure 10；WnFor the charging capacity or rechargeable energy of this measurement.This can be obtained by this calculating formula
The current degree of aging of battery.
The decision-making system of above-mentioned a kind of secondary accumulator battery health degree, by the material category, specified for obtaining battery
Capacitance or rated energy, Current Temperatures, charging modes and charging current or charge power, determine charging feature section, obtain
Charge capacity or energy of the battery in charging feature section are taken, relative to the rate of change of normative reference value, is obtained with this
The degree of aging of battery, realize solve the decision problem of battery degree of aging, it is less demanding to decision condition, temperature is examined
Including worry, reduce the difficulty of commercial applications and judge difficulty, be easy to detect the current degree of aging of battery.
The above-mentioned technology contents that the present invention is only further illustrated with embodiment, in order to which reader is easier to understand, but not
Represent embodiments of the present invention and be only limitted to this, any technology done according to the present invention extends or recreation, by the present invention's
Protection.Protection scope of the present invention is defined by claims.
Claims (7)
1. a kind of decision method of secondary accumulator battery health degree, it is characterised in that methods described includes：
Obtain the relevant information of battery；
The charging feature section of battery is obtained according to relevant information；
Judge whether the charging voltage of battery is equal to the threshold value in charging feature section；
If so, obtain the charging capacity or rechargeable energy of battery；
Judge whether the charging voltage of battery is equal to the end point values in charging feature section；
If so, the degree of aging of battery is obtained according to the charging capacity or rechargeable energy.
2. the decision method of a kind of secondary accumulator battery health degree according to claim 1, it is characterised in that obtain electric power storage
The step of relevant information in pond, including step in detail below：
Obtain the material category information and rated capacitance or rated energy of battery；
Obtain Current Temperatures information, charging modes and the charging current or charge power of battery.
3. the decision method of a kind of secondary accumulator battery health degree according to claim 2, it is characterised in that obtain electric power storage
The step of charging capacity or rechargeable energy in pond, specifically useThe charging capacity of battery is obtained, or is adopted
WithObtain the rechargeable energy of battery；Wherein, I represents charging current；Symbol P represents charge power；Symbol
Δ t represents sensor sample time interval.
4. the decision method of a kind of secondary accumulator battery health degree according to claim 3, it is characterised in that according to described
The step of charging capacity or rechargeable energy obtain the degree of aging of battery, including step in detail below：
Obtain the theoretical initial charge capacity of setting or theoretical initial charge energy；
Obtain the ratio or the rechargeable energy and theoretical initial charge energy of the charging capacity and theoretical initial charge capacity
Ratio；
Ratio is multiplied by the setting coefficient of upper level, obtains percentage, forms the degree of aging value of battery.
5. a kind of decision-making system of secondary accumulator battery health degree, it is characterised in that obtained including information acquisition unit, section single
Member, starting point judging unit, charge volume acquiring unit, endpoint unit and degree of aging acquiring unit；
Described information acquiring unit, for obtaining the relevant information of battery；
The section acquiring unit, for obtaining the charging feature section of battery according to relevant information；
The starting point judging unit, for judging whether the charging voltage of battery is equal to the threshold value in charging feature section；
The charge volume acquiring unit, for if so, obtaining the charging capacity or rechargeable energy of battery；
The endpoint unit, for judging whether the charging voltage of battery is equal to the end point values in charging feature section；
The degree of aging acquiring unit, for if so, obtaining the aging of battery according to the charging capacity or rechargeable energy
Degree.
A kind of 6. decision-making system of secondary accumulator battery health degree according to claim 5, it is characterised in that described information
Acquiring unit includes Back ground Information acquisition module and current information acquisition module；
The Back ground Information acquisition module, for obtaining the material category information and rated capacitance or specified energy of battery
Amount；
The current information acquisition module, for obtain battery Current Temperatures information, charging modes and charging current or
Charge power.
A kind of 7. decision-making system of secondary accumulator battery health degree according to claim 6, it is characterised in that the aging
Degree acquiring unit includes initial value acquisition module, ratio acquisition module and degree value acquisition module；
The initial value acquisition module, for the theoretical initial charge capacity for obtaining setting or theoretical initial charge energy；
The ratio acquisition module, for the ratio for obtaining the charging capacity and theoretical initial charge capacity or the charging energy
Amount and the ratio of theoretical initial charge energy；
The degree value acquisition module, for ratio to be multiplied by the setting coefficient of upper level, percentage is obtained, forms battery
Degree of aging value.
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| CN110361664A (en) * | 2019-08-23 | 2019-10-22 | 清华四川能源互联网研究院 | Battery detection method, battery monitoring device and charging equipment |
| CN113960480A (en) * | 2021-09-10 | 2022-01-21 | 奇瑞商用车（安徽）有限公司 | Power battery SOH estimation method |
| CN114062953A (en) * | 2021-10-26 | 2022-02-18 | 三一汽车起重机械有限公司 | Storage battery health state determination method and device and working machine |
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| CN102866361A (en) * | 2012-08-31 | 2013-01-09 | 惠州市亿能电子有限公司 | SOH (state-of-health) online estimation method of battery pack |
| CN103197257A (en) * | 2013-04-03 | 2013-07-10 | 华为技术有限公司 | Method and device for detecting state of health (SOH) of battery |
| CN103308864A (en) * | 2013-07-09 | 2013-09-18 | 中国人民解放军国防科学技术大学 | Method for estimating secondary cell SOH value and testing residual service life |
| CN107064818A (en) * | 2017-04-26 | 2017-08-18 | 广州汽车集团股份有限公司 | Battery pack SOH evaluation methods and system |
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| CN110361664A (en) * | 2019-08-23 | 2019-10-22 | 清华四川能源互联网研究院 | Battery detection method, battery monitoring device and charging equipment |
| CN113960480A (en) * | 2021-09-10 | 2022-01-21 | 奇瑞商用车（安徽）有限公司 | Power battery SOH estimation method |
| CN114062953A (en) * | 2021-10-26 | 2022-02-18 | 三一汽车起重机械有限公司 | Storage battery health state determination method and device and working machine |
| CN114062953B (en) * | 2021-10-26 | 2024-02-13 | 三一汽车起重机械有限公司 | Method and device for determining health state of storage battery and working machine |
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