CN104749525B - Battery aging status detection means, system, method - Google Patents
Battery aging status detection means, system, method Download PDFInfo
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- CN104749525B CN104749525B CN201310752882.2A CN201310752882A CN104749525B CN 104749525 B CN104749525 B CN 104749525B CN 201310752882 A CN201310752882 A CN 201310752882A CN 104749525 B CN104749525 B CN 104749525B
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Abstract
The invention provides a kind of battery aging status detection method, it includes：Battery is controlled to carry out charge or discharge；Detect the magnitude of voltage and current value during battery charge or discharge；According to magnitude of voltage whether in the default voltage range with judge battery whether a certain phase transformation stage of the material in battery, wherein, corresponding voltage range when default voltage range is in a kind of equilibrium stage of phase transformation for the material of battery, the material that the phase transformation stage refers to the battery are renewed in the stage so that one kind is at a stalemate；When being integrated to the current value within the period corresponding to the phase transformation stage, when being in a certain phase transformation stage to obtain the material of battery, current value is integrated within the period corresponding to the phase transformation stage, to obtain capacitance of the battery within the period corresponding to the phase transformation stage, and according to the present battery state-of-charge function and present battery health status function of capacitance calculating power supply.The present invention can improve the convenience of detection battery charge state and cell health state.Present invention also offers a kind of cell degradation detection means and system.
Description
Technical field
The present invention relates to field of batteries, more particularly to a kind of battery aging status detection means, battery aging status to detect
System and battery aging status detection method.
Background technology
For battery, it usually needs estimation battery charge state（State of charge, SOC）And battery health
State（state of health,SOH）, to change the battery of aging in time.In the prior art, battery charge state is detected
And cell health state generally use open circuit voltage method detects, specifically, open circuit voltage method is when battery is at longer one section
Between（Usually more than one hour）It is offline it is static in the case of measure.However, need long time running for communication base station etc.
For electronic installation, battery offline static normal work that will have influence on communicator etc. within the time is allowed.Therefore, prior art
In detection to battery charge state and cell health state it is more inconvenient.
The content of the invention
A kind of battery aging status detection means, battery aging status detecting system and battery aging status detection is provided to set
It is standby, so as to improve the convenience of detection battery charge state and cell health state.
On the one hand, there is provided a kind of battery aging status detection means, for the battery charge state and battery to battery
Health status is detected.The battery aging status detection means includes current detecting unit, voltage detection unit and control
Unit, described control unit are used to control the battery to carry out charge or discharge, and the voltage detection unit is used to detect institute
Magnitude of voltage during battery charge or discharge is stated, the current detecting unit is used to detect the electric current during battery charge or discharge
Whether value, described control unit are used to be in a default voltage range whether to judge the battery according to the magnitude of voltage
The one phase transformation stage of the material in the battery, wherein, the default voltage range is in one for the material of the battery
Corresponding voltage range during the equilibrium stage of kind phase transformation, the material that the phase transformation stage refers to the battery renew so that one kind is at a stalemate
Stage, when the material of the battery is in a phase transformation stage, to the current value in the period corresponding to the phase transformation stage
Inside integrated, to obtain one in the period according to corresponding to the current value calculating battery in the phase transformation stage
Capacitance, and according to the present battery state-of-charge function and present battery health status letter of the capacitance calculating battery
Number.
In the first possible implementation, described control unit includes charge and discharge control subelement and judges that son is single
Member, the charge and discharge control subelement are used to control the battery to carry out charge or discharge, and the judgment sub-unit is used to judge
Whether the magnitude of voltage of the voltage is in a predetermined voltage range, when the magnitude of voltage is in the predetermined voltage range
When, the judgment sub-unit judges that the material of the battery is in the phase transformation stage；When the magnitude of voltage is in described default
Voltage range outside when, the material of the battery is not on the phase transformation stage.
With reference to the first possible implementation, in second of possible implementation, described control unit also includes
Computation subunit, the computation subunit are used to calculate differential of the voltage to electric capacity, described in the judgment sub-unit judges
Whether voltage is more than or equal to one first default value to the differential of electric capacity, and the voltage whether the differential of electric capacity is more than or
First default value and the electricity are more than or equal to the differential of electric capacity equal to one second default value, and in the voltage
When pressure value time differential is more than or equal to second default value, judge that the material of the battery is in a phase transformation
Stage, wherein, first default value and second default value are respectively the voltage to being obtained during the differential of electric capacity
Two extreme values and the corresponding predetermined voltage range two end points.
With reference to second of possible implementation, in the third possible implementation, charge and discharge control is single
Member is additionally operable to control the current value to be less than or equal to a pre-set current value, wherein, the pre-set current value represents the battery
The higher limit of electric current corresponding to ageing state detection method accuracy of detection.
In the 4th kind of possible implementation, the battery aging status detection means also includes a memory, described
Memory memory storage has the battery charge state function of the battery and cell health state function, described control unit also to include
Subelement is updated, the renewal subelement is used for the present battery state-of-charge function of the battery and present battery health shape
Current battery charge state function and cell health state function of the state function as the battery, to update the battery
Battery charge state function and cell health state function.
With reference to the 4th kind of mode in the cards, in the 5th kind of mode in the cards, the battery aging status inspection
Surveying device also includes alarm unit, and the alarm unit is used to receive a drive signal, and under the control of the drive signal
Send a warning, described control unit also includes an alarm and drives subelement, when the battery charge state according to the battery
When function obtains corresponding battery aging status more than a given threshold, or the cell health state function call according to the battery
When being less than or equal to a preset time to corresponding remaining battery run time, the alarm driving subelement sends driving letter
Number to the alarm unit, to drive the alarm unit to send a warning, wherein, the given threshold refers to the battery
The higher limit of ageing state, the preset time refer to the lower limit of the remaining runtime of battery.
On the other hand, there is provided a kind of battery aging status detecting system, including a charging device, battery, load and one
Battery aging status detection means.The charging device is used to charge to the battery, and the battery is used for be described negative
Power supply is carried, the battery aging status detection means is used to examine the battery charge state and cell health state of battery
Survey, it is characterised in that it is single that the battery aging status detection means includes current detecting unit, voltage detection unit and control
Member, described control unit are used to control the battery to carry out charge or discharge, and the voltage detection unit is described for detecting
Magnitude of voltage during battery charge or discharge, the current detecting unit are used to detect the electric current during battery charge or discharge
Whether value, described control unit are used to be in a default voltage range whether to judge the battery according to the magnitude of voltage
The a certain phase transformation stage of material in the battery, wherein, the default voltage range is in for the material of the battery
Corresponding voltage range during a kind of equilibrium stage of phase transformation, the material that the phase transformation stage refers to the battery renew so that one kind is at a stalemate
In the stage, when the material of the battery is in the phase transformation stage, to the current value when corresponding to the phase transformation stage
Between integrated in section, with obtain according to the current value calculate the battery in the phase transformation stage corresponding to period in
One first capacitance, and the present battery state-of-charge function of the battery and current electricity are calculated according to first capacitance
Pond health status function.
In the first mode in the cards, described control unit includes charge and discharge control subelement and judges that son is single
Member, the charge and discharge control subelement are used to control the battery to carry out charge or discharge, and the judgment sub-unit is used to judge
Whether the magnitude of voltage of the voltage is in a predetermined voltage range, when the magnitude of voltage is in the predetermined voltage range
When, the judgment sub-unit judges that the material of the battery is in the phase transformation stage；When the magnitude of voltage is in described default
Voltage range outside when, the material of the battery is not on the phase transformation stage.
With reference to the first mode in the cards, in second of mode in the cards, described control unit also includes
Computation subunit, the computation subunit are used to calculate differential of the voltage to electric capacity, described in the judgment sub-unit judges
Whether voltage is more than or equal to one first default value to the differential of electric capacity, and the voltage whether the differential of electric capacity is more than or
First default value and the electricity are more than or equal to the differential of electric capacity equal to one second default value, and in the voltage
When pressure value time differential is more than or equal to second default value, judge that the material of the battery is in a phase transformation
Stage, wherein, first default value and second default value are respectively the voltage to being obtained during the differential of electric capacity
Two extreme values and the corresponding predetermined voltage range two end points.
With reference to second of mode in the cards, in the third mode in the cards, charge and discharge control is single
Member is additionally operable to control the current value to be less than or equal to a pre-set current value, wherein, the pre-set current value represents the battery
The higher limit of electric current corresponding to ageing state detection method accuracy of detection.
In the 4th kind of mode in the cards, the battery aging status detection means also includes a memory, described
Memory memory storage has the battery charge state function of the battery and cell health state function, described control unit also to include
Subelement is updated, the renewal subelement is used to be good for according to the present battery state-of-charge function and present battery of the battery
Current battery charge state function and cell health state function of the health function of state as the battery, to update the electricity
The battery charge state function and cell health state function in pond.
With reference to the 4th kind of mode in the cards, in the 5th kind of mode in the cards, the battery aging status inspection
Surveying device also includes alarm unit, and the alarm unit is used to receive a drive signal, and under the control of the drive signal
Send a warning, described control unit also includes an alarm and drives subelement, when the battery charge state according to the battery
When function obtains corresponding battery aging status more than a given threshold, or the cell health state function call according to the battery
When being less than or equal to a preset time to corresponding remaining battery run time, the alarm driving subelement sends driving letter
Number to the alarm unit, to drive the alarm unit to send a warning, wherein, the given threshold refers to the battery
The higher limit of ageing state, the preset time refer to the lower limit of the remaining runtime of battery.
On the other hand, there is provided a kind of battery aging status detection method, for the battery charge state and electricity to battery
Pond health status is detected.The battery aging status detection method comprises the following steps：
The battery is controlled to carry out charge or discharge；
Detect the magnitude of voltage and current value during the battery charge or discharge；
Whether it is according to the magnitude of voltage in a default voltage range to judge whether the battery is in the electricity
The one phase transformation stage of the material in pond, wherein, the default voltage range is in a kind of the flat of phase transformation for the material of the battery
Corresponding voltage range during the weighing apparatus stage, the material that the phase transformation stage refers to the battery are renewed in the stage so that one kind is at a stalemate；
When the material of the battery is in a phase transformation stage, to the current value in the time corresponding to the phase transformation stage
Integrated in section, to obtain in the period according to corresponding to the current value calculating battery in the phase transformation stage
First capacitance, and be good for according to the present battery state-of-charge function and present battery of first capacitance calculating battery
Health function of state.
In the first mode in the cards, judging whether the battery is in the battery according to the magnitude of voltage
Material a phase transformation stage etch in, including：
The magnitude of voltage of the voltage is judged whether in a default voltage range, when the magnitude of voltage is in described pre-
If voltage range in when, the material of the battery is in the phase transformation stage；When the magnitude of voltage of the voltage is in described pre-
If voltage range outside when, the material of the battery is not on the phase transformation stage.
With reference to the first possible implementation, in second of mode in the cards, the battery aging status inspection
Survey method also includes：
Calculate differential of the voltage to electric capacity；
Judge whether the voltage is more than or equal to one first default value to the differential of electric capacity, and judge the voltage pair
Whether the differential of electric capacity is more than or equal to one second default value, wherein, first default value and second present count
Value is respectively the voltage to two extreme values obtained during the differential of electric capacity and two end points of the corresponding predetermined voltage range；
When the voltage is to the differential of electric capacity is more than or equal to first default value and the voltage is to the micro- of electric capacity
When point being more than or equal to second default value, judge that the material of the battery is in the phase transformation stage.
With reference to second of mode in the cards, in the third mode in the cards, the battery aging status inspection
Survey method also includes before the voltage is calculated to the differentiation step of electric capacity：
The current value is controlled to be less than or equal to a pre-set current value, wherein, the pre-set current value represents the battery
The higher limit of electric current corresponding to ageing state detection method accuracy of detection.
In the 4th kind of mode in the cards, the battery aging status detection method also includes：
Using the present battery state-of-charge function and present battery health status function of the battery as the battery
Current battery charge state function and cell health state function, to update the battery charge state function of the battery and electricity
Pond health status function.
With reference to the 4th kind of mode in the cards, in the 5th kind of mode in the cards, the battery aging status inspection
Survey method also includes：
Battery aging status is more than a given threshold corresponding to obtained according to the battery charge state function of the battery
When, or remaining battery run time is default less than or equal to one according to corresponding to obtaining the cell health state function of the battery
During the time, a drive signal a to alarm unit is sent, to drive the alarm unit to send a warning, wherein, it is described to set
Determine the higher limit that threshold value refers to the battery aging status, the preset time refers to the lower limit of the remaining runtime of battery
Value.
Battery aging status detection means, battery aging status detecting system and the battery provided according to each implementation is old
Change condition detection method, battery material has the different phase transformation stages when carrying out charge or discharge using the battery, passes through detection
Whether magnitude of voltage during battery charge or discharge carries out judging whether the battery is in a phase in a predetermined voltage range
The change stage, to choose a phase transformation stage in multiple phase transformation stages.Then, to the battery when corresponding to this phase transformation stage
Interior current value is integrated to obtain the first capacitance, and the current electricity of the battery is calculated according to first capacitance
Pond state-of-charge function and present battery health status function.It is achieved thereby that to battery charge state and battery when battery is online
The calculating of health status.And then improve the convenience of detection battery charge state and cell health state.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the circuit block diagram of the battery aging status detecting system of a better embodiment of the invention；
Fig. 2 is the block diagram of the control unit shown in Fig. 1；
Fig. 3 is the voltage of battery of the present invention relative to the curve synoptic diagram of the battery charge state of battery；
Fig. 4 is the flow chart of the battery aging status detection method of a better embodiment of the invention；
Fig. 5 is the flow chart of the sub-step included by step S203 in Fig. 4 of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, it is the circuit block diagram of the battery aging status detecting system 10 of a better embodiment of the invention.
Shown battery aging status detecting system 10 includes battery aging status detection means 100, charging device 200, battery 300 and born
Carry 400.The charging device 200 is used to charge to the battery 300, and the battery 300 is used to supply for the load 400
Electricity.The battery 300 can be, but not limited to, lithium ion battery.Preferably, it using materials such as graphite is negative that the battery 300, which is,
The lithium ion battery of pole.The battery check device 100 is used for the battery charge state to battery（State of charge,
SOC）And cell health state（State of health, SOH）Detected.The battery charge state of so-called battery refers to, electric
Pond using after a period of time or it is long-term lie idle after remaining capacitance be completely filled with electricity condition with it when capacitance ratio
Value.The span of the state-of-charge of battery is 0~1, when the state-of-charge of battery is equal to 0, represents that battery discharge is complete, electricity
Remaining capacity is zero in pond；When the state-of-charge of battery is equal to 1, represent that battery is completely filled with.And the battery health of battery
State plays an important role in maintenance, replacing and maintenance of battery etc..The battery aging status detection means 100 is wrapped
Include voltage detection unit 110, current detecting unit 120 and control unit 130.Described control unit 130 is used to control described fill
Electric installation 200 charges to the battery 300, or the control battery 300 discharges the load 400.It is described
Voltage detection unit 120 is used to detect magnitude of voltage during 300 charge or discharge of battery, and the current detection voltage 110 is used
Current value when 300 charge or discharge of battery are detected, described control unit 130 are used to judge institute according to the magnitude of voltage
The phase transformation stage whether battery 300 is in the material of the battery 300 is stated, when the material of the battery 300 is in a phase
During the change stage, the capacitance in period according to corresponding to the current value calculating battery 300 in the phase transformation stage,
To obtain the first capacitance, and the present battery state-of-charge function of the battery and current is calculated according to first capacitance
Cell health state function.So-called phase（phase）Refer to, composition is identical, structure is identical, has interface and with other parts segmentation
The uniform part of material.So-called phase transformation refers to that material turns when temperature or pressure or composition etc. change from a kind of phase
It is changed into the process of another phase.A so-called phase transformation stage refers to, the continuing of a kind of certain phase of material has the stage.
Also referring to Fig. 2, it is the block diagram of the control unit 130 shown in Fig. 1.Described control unit 130 includes charge and discharge
Automatically controlled subunit 131 and judgment sub-unit 132.The charge and discharge control subelement 131 is used to control the charging device 200
The battery 300 is charged, or the control battery 300 discharges the load 400.The judgment sub-unit
Whether 132 magnitudes of voltage for being used to judge the voltage are in a predetermined voltage range, when the magnitude of voltage is in described default
When in voltage range, the judgment sub-unit 132 judges that the material of the battery 300 is in the phase transformation stage.It is described default
Voltage range refers to that the material of the battery 300 is in voltage range corresponding during the equilibrium stage of certain phase transformation.When described
When the material of battery 300 is located in the predetermined voltage range, the material of the battery 300 is a certain specific phase.When described
In two end points of the predetermined voltage range, the material of the battery 300 is undergone phase transition the material of battery 300, i.e. described
The point that two end points of predetermined voltage range undergo phase transition for the material of the battery 300.When the material of the battery 300 is in institute
When stating outside predetermined voltage range, the material 300 of the battery is in other one or more phase transformation stages.Also referring to
Fig. 3, in figure 3 in voltage range（V1~V2）Interior, the material of the battery 300 is in a kind of equilibrium stage of phase transformation.It is described
The material of battery 300 is undergone phase transition in V1 and V2 2, in voltage range（V1~V2）Outside, at the material of institute's battery 300
Balanced each other the stage in other one or more.As can be seen here, the phase at the material of battery 300 has close with voltage range
The relation cut, therefore, it can judge whether the material of the battery 300 is in the equilibrium stage of certain phase transformation according to voltage range.
So that the battery 300 is lithium ion battery as an example, because electrode material is during Lithium-ion embeding or abjection
Discontinuous phase transformation, therefore, magnitude of voltage can occur -- stepped change is presented in SOC curves, as shown in figure 3, it is present invention electricity
The voltage in pond relative to the battery charge state of battery curve synoptic diagram.As seen from Figure 3, the magnitude of voltage of the battery 300 --
Obvious stepped change is presented in the SOC curves, in figure 3 it can be seen that the magnitude of voltage of the battery -- and SOC curves include three
Staircase curve, for convenience of describing, three staircase curves are respectively designated as the first curve I, the second curve II and the 3rd
Curve III.The first curve I, the second curve II and the 3rd curve III correspond to a kind of balance rank of phase transformation respectively
Section.By taking the second curve II as an example, the change of the voltage range of the second curve II turns to V1~V2, the second curve II
Two end points be V1 and V2.The present invention is exactly the magnitude of voltage during charge or discharge using the battery 300 --
The characteristic of this stepped change of SOC curves, a staircase curve in three staircase curves is chosen to the battery
What 300 SOC and SOH was calculated.Because the voltage difference in each staircase curve at two-end-point is smaller, usually ten
It is several to tens millivolts.Therefore, it is necessary to which the voltage change between a staircase curve is amplified, essence is judged to improve
Degree.
In the present embodiment, described control unit 130 also includes computation subunit 133.The computation subunit 133 is used
In the calculating magnitude of voltage time differential.The computation subunit 133 carries out differential process to the magnitude of voltage to the time
Purpose be to be amplified the voltage change between a staircase curve, to improve judgement precision.
The charge and discharge electronic unit 131 is additionally operable to control the current value to be less than or equal to a pre-set current value.In order that
The magnitude of voltage of the battery 300 -- the first curve I, the second curve II and the 3rd curve III ladder becomes in SOC staircase curves
Change is relatively obvious, to improve judgement precision, it is also necessary to which electric current during to 300 charge or discharge of battery limits.At this
In embodiment, the charge and discharge electronic unit 131 controls the current value during charge or discharge of the battery 300 to be less than or equal to
The pre-set current value.Wherein, the pre-set current value refers to obtain stepped good magnitude of voltage -- needed for SOC curves
The maximum for the electric current wanted.That is, in the higher limit of electric current corresponding to current accuracy of detection.When the battery 300 charging or
When current value during electric discharge is less than or equal to the pre-set current value, the magnitude of voltage -- the first curve I in SOC curves, second
Curve II and the 3rd curve III stepped change are relatively obvious, are advantageous to raising and judge precision；When the charging of the battery 300
Or current value during electric discharge is when being more than the pre-set current value, the magnitude of voltage -- the first curve I, the second curve in SOC curves
II and the 3rd curve III stepped change are unfavorable for raising and judge precision with respect to unobvious.
The judgment sub-unit 132 is used to judge that the voltage is preset to whether the differential of electric capacity is more than or equal to one first
Whether numerical value, and the magnitude of voltage are more than or equal to one second default value to the differential of electric capacity, and in the voltage to electric capacity
Differential be more than or equal to first default value and the voltage to be more than or equal to described second to the differential of electric capacity default
During numerical value, the material that the battery 300 is judged as the battery 300 is in a phase transformation stage.Wherein, described first is default
Numerical value and the second value are respectively the voltage to two extreme values obtained during the differential of electric capacity, i.e. described first is default
Numerical value and second default value correspond to two end points of the predetermined voltage range.
Specifically, there is extreme value to the differential of electric capacity at the phase transformation of the material of the battery 300 in the voltage；And in phase
Equilibrium stage, the voltage almost levels off to zero to the differential of electric capacity.For the second curve II, the battery 300
Material is undergone phase transition in V1 and V2 2, therefore, the battery to the differential of electric capacity to there is extreme value at V1 and the points of V2 two,
That is, described second curve II is at point corresponding to V1 and V2 is phase transformation；And in the second curve II in addition to 2 points of V1 and V2,
Remaining each point is in and balanced each other the stage, and the voltage almost levels off to zero to the integration of electric capacity.Therefore, the judgment sub-unit
132 judge whether the voltage is more than or equal to first default value to the differential of electric capacity, and the magnitude of voltage is to electric capacity
Differential whether be more than or equal to second default value, you can judge whether the battery 300 is in one of its material
The phase transformation stage.
So that the battery 300 is charged as an example, for the second curve II, the judgment sub-unit 132 is sentenced
Whether the voltage that breaks is more than or equal to first default value to the differential of electric capacity.When the magnitude of voltage is to the differential of electric capacity
During more than or equal to first default value, judge that the magnitude of voltage of the battery 300 is located at one of the second curve II
End points V1.The end points V1 corresponding time points when the battery 300 is charged are named as first time point t1, now,
The computation subunit 133 starts to proceed by integration relative to the time in the first time point t1 to the electric current.I.e.
One time point t1 is the starting point of current integration.The judgment sub-unit 132 is additionally operable to judge that the voltage is to the differential of electric capacity
It is no to be more than or equal to second default value.When the voltage is more than or equal to second default value to the differential of electric capacity
When, judge that the magnitude of voltage of the battery 300 reaches another end points V2 of the second curve II.The end points V2 is in the electricity
Pond 300 when being charged corresponding time point be named as the second time point t2, second time point t2 is the current integration
Terminal.As can be seen here, the current value that the computation subunit 133 detects according to the current detecting unit 120 is first
The integration of period between time point t1 and the second time point t2, that is, the battery 300 is obtained in one phase transformation stage
The first capacitance in the corresponding period.Here, first capacitance is expressed as Q1.The computation subunit 133
The battery charge state function and cell health state function are modified according to first capacitance, to obtain current electricity
Pond state-of-charge function and present battery health status function.In the present embodiment, the present battery state-of-charge function
And present battery health status function is expressed as SOC1And SOH1, SOH1=(1-a+Q1/Q0)*100%;SOC1=Qfcc*f
(SOC0)=Q0*SOH1*f(SOC0)=Q0*(1-a+Q1/Q0)*f(SOC0).Wherein, a is constant, Q0It is unaged for the battery 300
When capacitance, SOC0It is datum for the original state-of-charge of battery.
The battery status degradation detecting device 100 also includes a memory cell 140.The internal memory of memory 140 contains
The initial battery charge state function of the battery 300 and initial cell health state function.Described control unit 130 is also wrapped
Include a renewal subelement 134.The renewal subelement 134 is used for the present battery state-of-charge function according to the battery 300
And current battery charge state function and cell health state of the present battery health status function as the battery
Function, to update the battery charge state function of the battery and cell health state function.
The battery aging status detection means 100 also includes alarm unit 150.The alarm unit 150 is used to receive
One drive signal, and sent a warning under the control of the drive signal.Described control unit 130 also includes alarm driving
Subelement 135.Battery aging status is more than one corresponding to obtained according to the present battery state-of-charge function of the battery 300
During given threshold, or the remaining runtime of battery 300 is small according to corresponding to obtaining the cell health state function of the battery 300
When a preset time, the alarm driving subelement 135 sends a drive signal to the alarm unit 150, with
The alarm unit 150 is driven to send a warning, to remind user to change battery 300 in time.Wherein, the given threshold is
Refer to the higher limit of the ageing state of the battery 300.When the ageing state of the battery 300 is without departing from the given threshold
When, the indices of the output of battery 300（Such as output voltage, output current etc.）It is attained by rated value；When the electricity
When the ageing state in pond 300 exceedes the given threshold, the output indices of the battery 300（Such as output voltage, output
Electric current etc.）Rated value can not all be reached, such as, output voltage can not reach rated output voltage, now, it is believed that the battery
300 need to change.The preset time can be the lower limit of the remaining runtime of the battery 300.When the battery 300
When remaining runtime is less than or equal to the preset time, then show that the remaining runtime of the battery is few, now, can
Think that the battery 300 needs to change.It is to be appreciated that the preset time can be configured according to being actually needed, such as
The preset time is 10 minutes.
Battery aging status detection means and battery aging status detecting system provided by the invention utilize the battery 300
Battery material has the different phase transformation stages when carrying out charge or discharge, by detecting magnitude of voltage during 300 charge or discharge of battery
Whether carry out judging whether the battery 300 is in a phase transformation stage in a predetermined voltage range, to choose multiple phase transformations
A phase transformation stage in stage.Then, current value of the battery 300 within the time corresponding to this phase transformation stage is accumulated
Divide to obtain the first capacitance, and the present battery state-of-charge function of the battery 300 is calculated according to first capacitance
And present battery health status function.It is achieved thereby that to battery charge state and cell health state when battery 300 is online
Calculate.And then improve the convenience of detection battery charge state and cell health state.
It is introduced with reference to Fig. 1~3 pair battery aging status detection method of the present invention, referring to Fig. 4, it is this hair
The flow chart of the battery aging status detection method of a bright better embodiment.The cell degradation detection method is used for battery
300 state-of-charge and cell health state is detected.The cell degradation detection method comprises the following steps.
Step S201, the battery 300 is controlled to carry out charge or discharge.
Specifically, the charge and discharge control subelement 131 controls the charging device 200 to fill the battery 300
Electricity, or the control battery 300 discharge the load 400.
Step S202, detect magnitude of voltage and current value during 300 charge or discharge of battery.
Specifically, the magnitude of voltage when voltage detection unit 110 detects 300 charge or discharge of battery；The electricity
Stream detection unit 120 detects current value during 300 charge or discharge of battery.
Step S203, judge whether the battery 300 is in a phase of the material of the battery 300 according to the magnitude of voltage
The change stage.
Specifically, the judgment sub-unit 132 judges the battery value whether in a predetermined voltage range, when described
When magnitude of voltage is in the predetermined voltage range, the judgment sub-unit 132 judges that the material of the battery 300 is in a phase
The change stage.When the magnitude of voltage is not in the default voltage range, the judgment sub-unit 132 judges the battery
300 material is not in a complete phase transformation stage, or in other phase transformations.
In other change embodiments, judge whether the battery 300 is in the battery 300 according to the magnitude of voltage
The method in a phase transformation stage of material can also comprise the following steps.Referring to Fig. 5, it is step in Fig. 4 of the present invention
The flow chart of sub-step included by S203.
Step S2031, the current value is controlled to be less than or equal to a pre-set current value.
Specifically, the charge and discharge electronic unit 131 controls the current value to be less than or equal to a pre-set current value.In order that
The ladder of the first curve I, the second curve II and the 3rd curve III in the magnitude of voltage of the battery 300-SOC staircase curves
Shape change is relatively obvious, to improve judgement precision, when the charge and discharge electronic unit 131 is to 300 charge or discharge of battery
Electric current is limited.
Step S2032, calculate differential of the voltage to electric capacity.
Specifically, the computation subunit 133 calculates differential of the voltage to electric capacity.The computation subunit 133 is same
Calculate the voltage and differential is carried out to electric capacity so that the voltage change in each staircase curve to be amplified, judge essence to improve
Degree.
Step S2033, judges whether the voltage is more than or equal to one first default value to the differential of electric capacity, and judges
Whether the voltage is more than or equal to one second default value to the differential of electric capacity, wherein, first default value and described
Second default value corresponds to two end points of the predetermined voltage range.
Specifically, the judgment sub-unit 132 judges whether the voltage is more than or equal to described the to the differential of electric capacity
One default value, and judge whether the voltage is more than or equal to one or two default value to the differential of electric capacity.The voltage
There is extreme value at the phase transformation of the material of the battery 300 to the differential of electric capacity；And in the equilibrium stage of phase transformation, the voltage pair
The differential of electric capacity almost levels off to zero.Therefore, the judgment sub-unit 132 judges whether the voltage is big to the differential of electric capacity
In whether being more than or equal to second present count to the differential of electric capacity equal to first default value, and the magnitude of voltage
Value, to judge that the battery 300 is in a phase transformation stage of its material.
Step S2034, when the voltage is more than or equal to first default value and the voltage to the differential of electric capacity
When being more than or equal to second default value to the differential of electric capacity, judge that the material of the battery 300 is in a phase transformation
Stage.
Step S2035, when the voltage is to the differential of electric capacity is less than first default value and the voltage is to electric capacity
Differential when being less than second default value, the material of the battery 300 is not at the phase transformation stage.
Step S204, when the material of the battery 300 is in a phase transformation stage, the electricity is calculated according to the current value
Capacitance of the pond 300 within the period corresponding to the phase transformation stage, and the battery 300 is calculated according to the capacitance
Present battery state-of-charge function and present battery health status function.
Step S205, according to the present battery state-of-charge function of the battery 300 and the present battery health status
Function updates the battery charge state function and cell health state function of the battery 300.
Specifically, using current the state-of-charge function and current health function of state of the battery 300 as the battery
300 current state-of-charge function and cell health state function, to update the battery charge state function of the battery 300
And cell health state function.
Step S206, the cell degradation shape corresponding to obtained according to the present battery state-of-charge function of the battery 300
When state is more than a given threshold, or remaining battery is run according to corresponding to obtaining the present battery health status function of the battery
When time is less than or equal to a preset time, a drive signal a to alarm unit 150 is sent, to drive the alarm unit
150 send a warning.To remind user to change battery 300 in time.
Battery aging status detection method provided by the invention, by controlling battery to carry out charge or discharge, detection charging
Or magnitude of voltage and current value during electric discharge, judge whether battery is in a phase transformation rank of battery material according to the battery value
Section, and when the material of battery is in the stage of phase transformation, battery is calculated in the phase transformation stage according to the current value
The first capacitance in the corresponding period, and according to the present battery state-of-charge letter of first capacitance calculating battery
Number and present battery health status function.It is achieved thereby that to battery charge state and the meter of cell health state when battery is online
Calculate.And then improve the convenience of detection battery charge state and cell health state.
The above disclosed power for being only a kind of preferred embodiment of the present invention, the present invention can not being limited with this certainly
Sharp scope, one of ordinary skill in the art will appreciate that realizing all or part of flow of above-described embodiment, and weighed according to the present invention
Profit requires made equivalent variations, still falls within and invents covered scope.
Claims (18)
1. a kind of battery aging status detection means, is examined for the battery charge state to battery and cell health state
Survey, it is characterised in that it is single that the battery aging status detection means includes current detecting unit, voltage detection unit and control
Member, described control unit are used to control the battery to carry out charge or discharge, and the voltage detection unit is described for detecting
Magnitude of voltage during battery charge or discharge, the current detecting unit are used to detect the electric current during battery charge or discharge
Whether value, described control unit are used to be in a default voltage range whether to judge the battery according to the magnitude of voltage
The one phase transformation stage of the material in the battery, wherein, the default voltage range is in one for the material of the battery
Corresponding voltage range during the equilibrium stage of kind phase transformation, the material that the phase transformation stage refers to the battery renew so that one kind is at a stalemate
Stage, when the material of the battery is in a phase transformation stage, to the current value in the period corresponding to the phase transformation stage
Inside integrated, to obtain one in the period according to corresponding to the current value calculating battery in the phase transformation stage
Capacitance, and according to the present battery state-of-charge function and present battery health status letter of the capacitance calculating battery
Number.
2. battery aging status detection means as claimed in claim 1, it is characterised in that described control unit includes discharge and recharge
Subelement and judgment sub-unit are controlled, the charge and discharge control subelement is used to control the battery to carry out charge or discharge, institute
State judgment sub-unit and be used to judge whether the magnitude of voltage of the voltage to be in a predetermined voltage range, when the magnitude of voltage is in
When in the predetermined voltage range, the judgment sub-unit judges that the material of the battery is in the phase transformation stage；When described
When magnitude of voltage is in outside the default voltage range, the material of the battery is not on the phase transformation stage.
3. battery aging status detection means as claimed in claim 2, it is characterised in that described control unit also includes calculating
Subelement, the computation subunit are used to calculate differential of the voltage to electric capacity, and the judgment sub-unit judges the voltage
Whether one first default value is more than or equal to the differential of electric capacity, and whether the voltage is more than or equal to the differential of electric capacity
One second default value, and first default value and the magnitude of voltage are more than or equal to the differential of electric capacity in the voltage
When time differential is more than or equal to second default value, judge that the material of the battery is in the phase transformation rank
Section, wherein, first default value and second default value are respectively the voltage to being obtained during the differential of electric capacity
Two end points of two extreme values and the corresponding predetermined voltage range.
4. battery aging status detection means as claimed in claim 3, it is characterised in that the charge and discharge control subelement is also
For controlling the current value to be less than or equal to a pre-set current value, wherein, the pre-set current value represents battery aging status
The higher limit of electric current corresponding to detection method accuracy of detection.
5. battery aging status detection means as claimed in claim 1, it is characterised in that the battery aging status detection dress
Putting also includes a memory, and the memory memory storage has the battery charge state function and cell health state letter of the battery
Number, described control unit also include renewal subelement, and the renewal subelement is used for the charged shape of the present battery of the battery
The current battery charge state function and battery health shape of state function and present battery health status function as the battery
State function, to update the battery charge state function of the battery and cell health state function.
6. battery aging status detection means as claimed in claim 5, it is characterised in that the battery aging status detection dress
Putting also includes alarm unit, and the alarm unit is used to receive a drive signal, and is sent under the control of the drive signal
Warning information, described control unit also includes an alarm and drives subelement, when the battery charge state function according to the battery
When battery aging status corresponding to obtaining is more than a given threshold, or obtained pair according to the cell health state function of the battery
When the remaining battery run time answered is less than or equal to a preset time, the alarm driving subelement sends a drive signal extremely
The alarm unit, to drive the alarm unit to send a warning, wherein, the given threshold refers to the cell degradation
The higher limit of state, the preset time refer to the lower limit of the remaining runtime of battery.
7. a kind of battery aging status detecting system, including a charging device, battery, load and battery aging status detection dress
Put, the charging device is used to charge to the battery, and it is the load supplying that the battery, which is used for, the cell degradation
Condition checkout gear is used to detect the battery charge state and cell health state of battery, it is characterised in that the electricity
Pond ageing state detection means includes current detecting unit, voltage detection unit and control unit, and described control unit is used to control
Make the battery and carry out charge or discharge, the voltage detection unit is used to detect the voltage during battery charge or discharge
Value, the current detecting unit are used to detect the current value during battery charge or discharge, and described control unit is used for basis
Whether the magnitude of voltage is in a default voltage range to judge whether the battery is in certain of the material of the battery
One phase transformation stage, wherein, when the default voltage range is in a kind of equilibrium stage of phase transformation for the material of the battery pair
The voltage range answered, the material that the phase transformation stage refers to the battery is renewed in the stage so that one kind is at a stalemate, when the material of the battery
When material is in the phase transformation stage, the current value is integrated within the period corresponding to the phase transformation stage, to obtain
One first capacitance in period according to corresponding to the current value calculating battery in the phase transformation stage, and according to
First capacitance calculates the present battery state-of-charge function and present battery health status function of the battery.
8. battery aging status detecting system as claimed in claim 7, it is characterised in that described control unit includes discharge and recharge
Subelement and judgment sub-unit are controlled, the charge and discharge control subelement is used to control the battery to carry out charge or discharge, institute
State judgment sub-unit and be used to judge whether the magnitude of voltage of the voltage to be in a predetermined voltage range, when the magnitude of voltage is in
When in the predetermined voltage range, the judgment sub-unit judges that the material of the battery is in the phase transformation stage；When described
When magnitude of voltage is in outside the default voltage range, the material of the battery is not on the phase transformation stage.
9. battery aging status detecting system as claimed in claim 8, it is characterised in that described control unit also includes calculating
Subelement, the computation subunit are used to calculate differential of the voltage to electric capacity, and the judgment sub-unit judges the voltage
Whether one first default value is more than or equal to the differential of electric capacity, and whether the voltage is more than or equal to the differential of electric capacity
One second default value, and first default value and the magnitude of voltage are more than or equal to the differential of electric capacity in the voltage
When time differential is more than or equal to second default value, judge that the material of the battery is in the phase transformation rank
Section, wherein, first default value and second default value are respectively the voltage to being obtained during the differential of electric capacity
Two end points of two extreme values and the corresponding predetermined voltage range.
10. battery aging status detecting system as claimed in claim 9, it is characterised in that the charge and discharge control subelement
It is additionally operable to control the current value to be less than or equal to a pre-set current value, wherein, the pre-set current value represents cell degradation shape
The higher limit of electric current corresponding to state detection method accuracy of detection.
11. battery aging status detecting system as claimed in claim 7, it is characterised in that the battery aging status detection
Device also includes a memory, and the memory memory storage has the battery charge state function and cell health state of the battery
Function, described control unit also include renewal subelement, and the renewal subelement is used for the present battery of the battery is charged
The current battery charge state function and battery health of function of state and present battery health status function as the battery
Function of state, to update the battery charge state function of the battery and cell health state function.
12. battery aging status detecting system as claimed in claim 11, it is characterised in that the battery aging status detection
Device also includes alarm unit, and the alarm unit is used to receive a drive signal, and is issued in the control of the drive signal
Go out warning information, described control unit also includes an alarm and drives subelement, when the battery charge state letter according to the battery
When number obtains corresponding battery aging status more than a given threshold, or obtained according to the cell health state function of the battery
When corresponding remaining battery run time is less than or equal to a preset time, the alarm driving subelement sends a drive signal
The extremely alarm unit, to drive the alarm unit to send a warning, wherein, the given threshold refers to that the battery is old
The higher limit of change state, the preset time refer to the lower limit of the remaining runtime of battery.
13. a kind of battery aging status detection method, is examined for the battery charge state to battery and cell health state
Survey, including：
The battery is controlled to carry out charge or discharge；
Detect the magnitude of voltage and current value during the battery charge or discharge；
According to the magnitude of voltage whether in the default voltage range to judge the battery whether in the battery
The one phase transformation stage of material, wherein, the default voltage range is in a kind of balance rank of phase transformation for the material of the battery
Corresponding voltage range during section, the material that the phase transformation stage refers to the battery are renewed in the stage so that one kind is at a stalemate；
When the material of the battery is in a phase transformation stage, to the current value within the period corresponding to the phase transformation stage
Integrated, to obtain capacitance of the battery within the period corresponding to the phase transformation stage, and according to the electric capacity
Value calculates the present battery state-of-charge function and present battery health status function of the battery.
14. battery aging status detection method as claimed in claim 13, it is characterised in that judge according to the magnitude of voltage
The battery whether in the battery material a phase transformation stage etch in, including：
The magnitude of voltage of the voltage is judged whether in a default voltage range, when the magnitude of voltage is in described default
When in voltage range, the material of the battery is in the phase transformation stage；When the magnitude of voltage of the voltage is in described default
When outside voltage range, the material of the battery is not on the phase transformation stage.
15. battery aging status detection method as claimed in claim 14, it is characterised in that the battery aging status detection
Method also includes：
Calculate differential of the voltage to electric capacity；
Judge whether the voltage is more than or equal to one first default value to the differential of electric capacity, and judge the voltage to electric capacity
Differential whether be more than or equal to one second default value, wherein, first default value and second default value point
Not Wei the voltage to two extreme values obtained during the differential of electric capacity and two end points of the corresponding predetermined voltage range；
When the voltage is more than or equal to first default value and the voltage is big to the differential of electric capacity to the differential of electric capacity
When second default value, judge that the material of the battery is in the phase transformation stage.
16. battery aging status detection method as claimed in claim 15, it is characterised in that the battery aging status detection
Method also includes before the voltage is calculated to the differentiation step of electric capacity：
The current value is controlled to be less than or equal to a pre-set current value, wherein, the pre-set current value represents the cell degradation
The higher limit of electric current corresponding to condition detection method accuracy of detection.
17. battery aging status detection method as claimed in claim 13, it is characterised in that the battery aging status detection
Method also includes：
Using the present battery state-of-charge function and present battery health status function of the battery as the current of the battery
Battery charge state function and cell health state function, be good for updating the battery charge state function of the battery and battery
Health function of state.
18. battery aging status detection method as claimed in claim 17, it is characterised in that the battery aging status detection
Method also includes：
When battery aging status is more than a given threshold corresponding to being obtained according to the battery charge state function of the battery, or
Remaining battery run time is less than or equal to a preset time according to corresponding to obtaining the cell health state function of the battery
When, a drive signal a to alarm unit is sent, to drive the alarm unit to send a warning, wherein, the setting threshold
Value refers to the higher limit of the battery aging status, and the preset time refers to the lower limit of the remaining runtime of battery.
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| CN105866690B (en) * | 2016-03-28 | 2018-09-11 | 广州市香港科大霍英东研究院 | A kind of battery status detection method and system based on capacitance sensor |
| CN106443498A (en) * | 2016-12-16 | 2017-02-22 | 东莞新能德科技有限公司 | Detection method and detection device for battery pack |
| US10620247B2 (en) | 2017-09-27 | 2020-04-14 | Quanta Computer Inc. | System and method to detect capacitance of a power supply unit |
| KR102542958B1 (en) * | 2017-12-12 | 2023-06-14 | 현대자동차주식회사 | Controlling method and system for monitoring deterioration of battery of vehicle |
| EP3591413B1 (en) * | 2018-07-03 | 2023-08-30 | Electricité de France | Method for evaluating an electric battery state of health |
| DE102019003823A1 (en) * | 2019-05-31 | 2020-12-03 | Daimler Ag | Battery management system and operation of an energy storage device for electrical energy |
| CN110531276B (en) * | 2019-09-05 | 2022-04-26 | 江苏智蓝电源科技有限公司 | Battery condition detection method and device |
| CN111257755B (en) * | 2020-03-31 | 2022-06-10 | 上海玫克生储能科技有限公司 | Method for preventive detection and diagnosis of battery pack |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101365941A (en) * | 2005-08-03 | 2009-02-11 | 加州理工学院 | Electrochemical thermodynamic measurement system |
| CN102981124A (en) * | 2012-11-06 | 2013-03-20 | 清华大学 | Spot test method and test device for fuel cell stack membrane electrode conditions |
| CN103022552A (en) * | 2012-12-20 | 2013-04-03 | 中国东方电气集团有限公司 | Long-life lithium ion battery used under shallow charging and discharging conditions and preparation method of same |
| CN103168383A (en) * | 2010-09-03 | 2013-06-19 | 安维亚系统公司 | Very long cycling of lithium ion batteries with lithium rich cathode materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4817647B2 (en) * | 2004-11-29 | 2011-11-16 | 三洋電機株式会社 | Secondary battery life judgment method. |
-
2013
- 2013-12-31 CN CN201310752882.2A patent/CN104749525B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101365941A (en) * | 2005-08-03 | 2009-02-11 | 加州理工学院 | Electrochemical thermodynamic measurement system |
| CN103168383A (en) * | 2010-09-03 | 2013-06-19 | 安维亚系统公司 | Very long cycling of lithium ion batteries with lithium rich cathode materials |
| CN102981124A (en) * | 2012-11-06 | 2013-03-20 | 清华大学 | Spot test method and test device for fuel cell stack membrane electrode conditions |
| CN103022552A (en) * | 2012-12-20 | 2013-04-03 | 中国东方电气集团有限公司 | Long-life lithium ion battery used under shallow charging and discharging conditions and preparation method of same |
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