CN103278760B - Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment - Google Patents
Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment Download PDFInfo
- Publication number
- CN103278760B CN103278760B CN201310177941.8A CN201310177941A CN103278760B CN 103278760 B CN103278760 B CN 103278760B CN 201310177941 A CN201310177941 A CN 201310177941A CN 103278760 B CN103278760 B CN 103278760B
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- power
- multiplying powers
- discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000001419 dependent effect Effects 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 229910018095 Ni-MH Inorganic materials 0.000 description 3
- 229910018477 Ni—MH Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000019994 cava Nutrition 0.000 description 2
- 238000012887 quadratic function Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Secondary Cells (AREA)
Abstract
Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment, the present invention relates to power-type lithium ion battery remaining capacity estimation field.The present invention will solve existing estimation method of battery dump energy not consider the problem of temperature on the impact of battery dump energy.One, lithium ion battery is under six temperature conditions, carries out the discharge test of six multiplying powers; Two, select 10C multiplying power to be the highest discharge current, 1/3C multiplying power is minimum discharge current, obtains Peukert COEFFICIENT K and the n of six temperature conditions; Three, carry out curve fitting to 6, obtaining with T is independent variable, take k as the fitting formula of dependent variable; Four, carry out curve fitting to 6, obtaining with T is independent variable, take n as the fitting formula of dependent variable; Five, active volume formula; Six, by C
ava, I, Tbring battery dump energy formula (4) into estimate the power-type lithium ion battery dump energy under different temperatures environment.The present invention is applied to battery dump energy and estimates field.
Description
Technical field
The present invention relates to power-type lithium ion battery remaining capacity estimation field.
Background technology
The application under normal temperature condition is mainly considered in the research of battery dump energy, less to the battery dump energy Estimation Study under different temperatures environment.Traditional Peukert equation is a kind of method estimating battery dump energy, but does not also take into full account that temperature affects.
The estimation of battery active volume, most methods well known is the Peukert equation that Peukert in 1897 proposes, and equation that describes the relation of battery active volume and discharge current, and obtains and accept more widely, and this formula is:
C
ava,I=K*I
(1-n)
Wherein, K and n is constant, is called Peukert COEFFICIENT K and n.
But this formula does not consider the effect of temperature in active volume is estimated.
Documents 1 (Ni-MH battery method for estimating remaining capacity research used for electric vehicle, Wu Guoliang, China Ph.D. Dissertation full-text database engineering science and technology II volume, 08th phase in 2011, C035-8 page, on 08 15th, 2011), but the quadratic function matching of the Peukert equation coefficient of Ni-MH battery is accurately low, fails truly to reflect SOC numerical value.
Summary of the invention
The present invention is that the quadratic function matching of the Peukert equation coefficient that will solve Ni-MH battery in existing estimation method of battery dump energy is accurately low, fail truly to reflect the problem of SOC numerical value, and provide the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment.
Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment realizes according to the following steps:
One, by lithium ion battery under the temperature conditions of T1=35 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C1, C
7C1, C
5C1, C
3C1, C
1C1, C
1/3C1;
By lithium ion battery under the temperature conditions of T2=25 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C2, C
7C2, C
5C2, C
3C2, C
1C2, C
1/3C2;
By lithium ion battery under the temperature conditions of T3=10 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C3, C
7C3, C
5C3, C
3C3, C
1C3, C
1/3C3;
By lithium ion battery under the temperature conditions of T4=0 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C4, C
7C4, C
5C4, C
3C4, C
1C4, C
1/3C4;
By lithium ion battery under the temperature conditions of T5=-10 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C5, C
7C5, C
5C5, C
3C5, C
1C5, C
1/3C5;
By lithium ion battery under the temperature conditions of T6=-15 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C6, C
7C6, C
5C6, C
3C6, C
1C6, C
1/3C6;
Two, select 10C multiplying power to be the highest discharge current, 1/3C multiplying power is minimum discharge current:
With I
10C1, I
1/3C1, C
10C1and C
1/3C1for calculating data, obtaining at the Peukert coefficient of T1=35 DEG C of temperature conditions is k1 and n1;
With I
10C2, I
1/3C2, C
10C2and C
1/3C2for calculating data, obtain at the Peukert coefficient k 2 of T2=25 DEG C of temperature conditions and n2;
With I
10C3, I
1/3C3, C
10C3and C
1/3C3for calculating data, obtain at the Peukert coefficient k 3 of T3=10 DEG C of temperature conditions and n3;
With I
10C4, I
1/3C4, C
10C4and C
1/3C4for calculating data, obtain at the Peukert coefficient k 4 of T4=0 DEG C of temperature conditions and n4;
With I
10C5, I
1/3C5, C
10C5and C
1/3C5for calculating data, obtain at the Peukert coefficient k 5 of T5=-10 DEG C of temperature conditions and n5;
With I
10C6, I
1/3C6, C
10C6and C
1/3C6for calculating data, obtain at the Peukert coefficient k 6 of T6=-15 DEG C of temperature conditions and n6;
Three, take T as transverse axis, with k axle for the longitudinal axis, to six point (T1, k
1), (T2, k
2), (T3, k
3),
(T4, k
4), (T5, k
5) and (T6, k
6) carry out curve fitting, and use least square method, obtaining with T is independent variable, take k as the fitting formula of dependent variable,
k(T)=a
4T
4+a
3T
3+a
2T
2+a
1T+a
0(1)
Four, take T as transverse axis, with n axle for the longitudinal axis, to six point (T1, n
1), (T2, n
2), (T3, n
3),
(T4, n
4), (T5, n
5) and (T6, n
6) carry out curve fitting, and use least square method, obtaining with T is independent variable, take n as the fitting formula of dependent variable,
n(T)=b
4T
4+b
3T
3+b
2T
2+b
1T+b
0(2)
Five, active volume formula is:
(3) six, by C
ava, I, Tbring battery dump energy formula (4) into estimate the power-type lithium ion battery dump energy under different temperatures environment:
Wherein, SOCini is initial SOC, Cdis is discharge capacity, and Cava is active volume.
Effect of the present invention:
The present invention is under condition of different temperatures, for power-type lithium ion battery, carry out the discharge test under different multiplying, set up and push over the Peukert equation considering temperature, thus the active volume of battery under estimating different temperatures environment, set up the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment, thus estimate the battery dump energy under different temperatures environment.Present invention achieves the power-type lithium ion battery remaining capacity estimation under different temperatures environment.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Embodiment one: the power-type lithium ion battery method for estimating remaining capacity under the different temperatures environment of present embodiment realizes according to the following steps:
One, by lithium ion battery under the temperature conditions of T1=35 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C1, C
7C1, C
5C1, C
3C1, C
1C1, C
1/3C1;
By lithium ion battery under the temperature conditions of T2=25 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C2, C
7C2, C
5C2, C
3C2, C
1C2, C
1/3C2;
By lithium ion battery under the temperature conditions of T3=10 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C3, C
7C3, C
5C3, C
3C3, C
1C3, C
1/3C3;
By lithium ion battery under the temperature conditions of T4=0 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C4, C
7C4, C
5C4, C
3C4, C
1C4, C
1/3C4;
By lithium ion battery under the temperature conditions of T5=-10 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C5, C
7C5, C
5C5, C
3C5, C
1C5, C
1/3C5;
By lithium ion battery under the temperature conditions of T6=-15 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C6, C
7C6, C
5C6, C
3C6, C
1C6, C
1/3C6;
Two, select 10C multiplying power to be the highest discharge current, 1/3C multiplying power is minimum discharge current:
With I
10C1, I
1/3C1, C
10C1and C
1/3C1for calculating data, obtaining at the Peukert coefficient of T1=35 DEG C of temperature conditions is k1 and n1;
With I
10C2, I
1/3C2, C
10C2and C
1/3C2for calculating data, obtain at the Peukert coefficient k 2 of T2=25 DEG C of temperature conditions and n2;
With I
10C3, I
1/3C3, C
10C3and C
1/3C3for calculating data, obtain at the Peukert coefficient k 3 of T3=10 DEG C of temperature conditions and n3;
With I
10C4, I
1/3C4, C
10C4and C
1/3C4for calculating data, obtain at the Peukert coefficient k 4 of T4=0 DEG C of temperature conditions and n4;
With I
10C5, I
1/3C5, C
10C5and C
1/3C5for calculating data, obtain at the Peukert coefficient k 5 of T5=-10 DEG C of temperature conditions and n5;
With I
10C6, I
1/3C6, C
10C6and C
1/3C6for calculating data, obtain at the Peukert coefficient k 6 of T6=-15 DEG C of temperature conditions and n6;
Three, take T as transverse axis, with k axle for the longitudinal axis, to six point (T1, k
1), (T2, k
2), (T3, k
3),
(T4, k
4), (T5, k
5) and (T6, k
6) carry out curve fitting, and use least square method, obtaining with T is independent variable, take k as the fitting formula of dependent variable,
k(T)=a
4T
4+a
3T
3+a
2T
2+a
1T+a
0(1)
Four, take T as transverse axis, with n axle for the longitudinal axis, to six point (T1, n
1), (T2, n
2), (T3, n
3),
(T4, n
4), (T5, n
5) and (T6, n
6) carry out curve fitting, and use least square method, obtaining with T is independent variable, take n as the fitting formula of dependent variable,
n(T)=b
4T
4+b
3T
3+b
2T
2+b
1T+b
0(2)
Five, active volume formula is:
(3)
Six, by C
ava, I, Tbring battery dump energy formula (4) into remain the power-type lithium ion battery under different temperatures environment
Remaining electricity is estimated:
Wherein, SOCini is initial SOC, Cdis is discharge capacity, and Cava is active volume.
Present embodiment effect:
Present embodiment is under condition of different temperatures, for power-type lithium ion battery, carry out the discharge test under different multiplying, set up and push over the Peukert equation considering temperature, thus the active volume of battery under estimating different temperatures environment, set up the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment, thus estimate the battery dump energy under different temperatures environment.Present embodiment achieves the power-type lithium ion battery remaining capacity estimation under different temperatures environment.
Embodiment two: present embodiment and embodiment one unlike: in step one by lithium ion battery under the temperature conditions of T1=35 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T1=35 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C1, C
7C1, C
5C1, C
3C1, C
1C1, C
1/3C1.Other step and parameter identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two unlike: in step one by lithium ion battery under the temperature conditions of T2=25 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T2=25 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C2, C
7C2, C
5C2, C
3C2, C
1C2, C
1/3C2.Other step parameter is identical with embodiment one or two.
Embodiment four: one of present embodiment and embodiment one to three unlike: in step one by lithium ion battery under the temperature conditions of T3=10 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T3=10 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C3, C
7C3, C
5C3, C
3C3, C
1C3, C
1/3C3.Other step and parameter identical with one of embodiment one to four.
Embodiment five: one of present embodiment and embodiment one to four unlike in step one by lithium ion battery under the temperature conditions of T4=0 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T4=0 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C4, C
7C4, C
5C4, C
3C4, C
1C4, C
1/3C4.Other step and parameter identical with one of embodiment one to five.
Embodiment six: one of present embodiment and embodiment one to five unlike in step one by lithium ion battery under the temperature conditions of T5=-10 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T5=-10 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C5, C
7C5, C
5C5, C
3C5, C
1C5, C
1/3C5.Other step and parameter identical with one of embodiment one to five.
Embodiment seven: one of present embodiment and embodiment one to six unlike: in step one by lithium ion battery under the temperature conditions of T6=-15 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T6=-15 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C6, C
7C6, C
5C6, C
3C6, C
1C6, C
1/3C6.Other step and parameter identical with one of embodiment one to six.
Embodiment eight: one of present embodiment and embodiment one to seven unlike: in step 2, the power-type lithium ion battery dump energy under different temperatures environment is estimated:
Wherein,
k(T)=a
4T
4+a
3T
3+a
2T
2+a
1T+a
0(6)
n(T)=b
4T
4+b
3T
3+b
2T
2+b
1T+b
0(7)。
Other step and parameter identical with one of embodiment one to seven.
Claims (8)
1. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment, is characterized in that the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment realizes according to the following steps:
One, by lithium ion battery under the temperature conditions of T1=35 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain the discharge capacity of lithium ion battery in 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, be designated as C respectively
10C1, C
7C1, C
5C1, C
3C1, C
1C1, C
1/3C1;
By lithium ion battery under the temperature conditions of T2=25 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain the discharge capacity of lithium ion battery in 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, be designated as C respectively
10C2, C
7C2, C
5C2, C
3C2, C
1C2, C
1/3C2;
By lithium ion battery under the temperature conditions of T3=10 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain the discharge capacity of lithium ion battery in 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, be designated as C respectively
10C3, C
7C3, C
5C3, C
3C3, C
1C3, C
1/3C3;
By lithium ion battery under the temperature conditions of T4=0 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain the discharge capacity of lithium ion battery in 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, be designated as C respectively
10C4, C
7C4, C
5C4, C
3C4, C
1C4, C
1/3C4;
By lithium ion battery under the temperature conditions of T5=-10 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain the discharge capacity of lithium ion battery in 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, be designated as C respectively
10C5, C
7C5, C
5C5, C
3C5, C
1C5, C
1/3C5;
By lithium ion battery under the temperature conditions of T6=-15 DEG C, carry out the discharge test of 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, obtain the discharge capacity of lithium ion battery in 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers, be designated as C respectively
10C6, C
7C6, C
5C6, C
3C6, C
1C6, C
1/3C6;
Two, select 10C multiplying power to be the highest discharge current, 1/3C multiplying power is minimum discharge current:
With I
10C1, I
1/3C1, C
10C1and C
1/3C1for calculating data, obtaining at the Peukert coefficient of T1=35 DEG C of temperature conditions is k1 and n1;
With I
10C2, I
1/3C2, C
10C2and C
1/3C2for calculating data, obtain at the Peukert coefficient k 2 of T2=25 DEG C of temperature conditions and n2;
With I
10C3, I
1/3C3, C
10C3and C
1/3C3for calculating data, obtain at the Peukert coefficient k 3 of T3=10 DEG C of temperature conditions and n3;
With I
10C4, I
1/3C4, C
10C4and C
1/3C4for calculating data, obtain at the Peukert coefficient k 4 of T4=0 DEG C of temperature conditions and n4;
With I
10C5, I
1/3C5, C
10C5and C
1/3C5for calculating data, obtain at the Peukert coefficient k 5 of T5=-10 DEG C of temperature conditions and n5;
With I
10C6, I
1/3C6, C
10C6and C
1/3C6for calculating data, obtain at the Peukert coefficient k 6 of T6=-15 DEG C of temperature conditions and n6;
Three, take T as transverse axis, with k axle for the longitudinal axis, to six point (T1, k
1), (T2, k
2), (T3, k
3), (T4, k
4), (T5, k
5) and (T6, k
6) carry out curve fitting, and use least square method, obtaining with T is independent variable, take k as the fitting formula of dependent variable,
k(T)=a
4T
4+a
3T
3+a
2T
2+a
1T+a
0(1)
Four, take T as transverse axis, with n axle for the longitudinal axis, to six point (T1, n
1), (T2, n
2), (T3, n
3), (T4, n
4), (T5, n
5) and (T6, n
6) carry out curve fitting, and use least square method, obtaining with T is independent variable, take n as the fitting formula of dependent variable,
n(T)=b
4T
4+b
3T
3+b
2T
2+b
1T+b
0(2)
Five, active volume formula is:
Six, by C
ava, I, Tbring battery dump energy formula (4) into estimate the power-type lithium ion battery dump energy under different temperatures environment:
Wherein, SOC
inifor initial SOC, C
disfor discharge capacity, C
avafor active volume.
2. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment according to claim 1, it is characterized in that: in step one by lithium ion battery under the temperature conditions of T1=35 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery, to electricity full state;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T1=35 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C1, C
7C1, C
5C1, C
3C1, C
1C1, C
1/3C1.
3. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment according to claim 1, it is characterized in that: in step one by lithium ion battery under the temperature conditions of T2=25 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery, to electricity full state;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T2=25 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C2, C
7C2, C
5C2, C
3C2, C
1C2, C
1/3C2.
4. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment according to claim 1, it is characterized in that: in step one by lithium ion battery under the temperature conditions of T3=10 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery, to electricity full state;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T3=10 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C3, C
7C3, C
5C3, C
3C3, C
1C3, C
1/3C3.
5. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment according to claim 1, it is characterized in that: in step one by lithium ion battery under the temperature conditions of T4=0 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery, to electricity full state;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T4=0 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C4, C
7C4, C
5C4, C
3C4, C
1C4, C
1/3C4.
6. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment according to claim 1, it is characterized in that: in step one by lithium ion battery under the temperature conditions of T5=-10 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery, to electricity full state;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T5=-10 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C5, C
7C5, C
5C5, C
3C5, C
1C5, C
1/3C5.
7. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment according to claim 1, it is characterized in that: in step one by lithium ion battery under the temperature conditions of T6=-15 DEG C, the discharge test of carrying out 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers is specially:
Step 1: under normal temperature condition, charges with 1/3C multiplying power to lithium ion battery, to electricity full state;
Step 2: the constant temperature oven 12 hours lithium ion battery laying temperature being set as T6=-15 DEG C;
Step 3: then discharge, is discharged to cut-off voltage, and respectively record lithium ion battery 10C, 7C, 5C, 3C, 1C and 1/3C six multiplying powers discharge capacity, be designated as C respectively
10C6, C
7C6, C
5C6, C
3C6, C
1C6, C
1/3C6.
8. the power-type lithium ion battery method for estimating remaining capacity under different temperatures environment according to claim 1, is characterized in that: estimate the power-type lithium ion battery dump energy under different temperatures environment in step 2:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310177941.8A CN103278760B (en) | 2013-05-14 | 2013-05-14 | Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310177941.8A CN103278760B (en) | 2013-05-14 | 2013-05-14 | Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103278760A CN103278760A (en) | 2013-09-04 |
CN103278760B true CN103278760B (en) | 2015-11-18 |
Family
ID=49061335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310177941.8A Active CN103278760B (en) | 2013-05-14 | 2013-05-14 | Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103278760B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103529400A (en) * | 2013-10-29 | 2014-01-22 | 哈尔滨工业大学 | Battery capacity forecasting method with self-adaptive temperature compensating function |
CN105807232B (en) * | 2016-03-16 | 2019-01-25 | 青岛理工大学 | A kind of lead-acid accumulator remaining capacity and battery health estimation method |
CN106324358B (en) * | 2016-08-17 | 2020-06-16 | 惠州市蓝微新源技术有限公司 | Dynamic detection method for internal resistance of battery cell |
CN106680722B (en) * | 2016-12-01 | 2020-08-04 | 威胜集团有限公司 | Method and device for predicting OCV-SOC curve on line in real time |
CN107169170B (en) * | 2017-04-20 | 2019-11-12 | 华中科技大学 | A kind of prediction technique of battery remaining power |
CN108983947A (en) * | 2018-06-28 | 2018-12-11 | 联想(北京)有限公司 | Control method and electronic equipment |
CN109342955A (en) * | 2018-11-19 | 2019-02-15 | 台州钱江新能源研究院有限公司 | A kind of projectional technique and system of capacity of lithium ion battery |
CN112083343B (en) * | 2019-06-12 | 2023-08-08 | 联合汽车电子有限公司 | Method for acquiring battery remaining energy |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5404106A (en) * | 1993-05-26 | 1995-04-04 | Fuji Jukogyo Kabushiki Kaisha | Battery capacity estimating system and method |
CN102544607A (en) * | 2012-02-13 | 2012-07-04 | 北京海博思创科技有限公司 | Method and device for obtaining residual electricity value of lithium ion battery and battery system |
CN102590755A (en) * | 2012-02-13 | 2012-07-18 | 北京海博思创科技有限公司 | Method and device for acquiring lithium ion battery capacity |
-
2013
- 2013-05-14 CN CN201310177941.8A patent/CN103278760B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5404106A (en) * | 1993-05-26 | 1995-04-04 | Fuji Jukogyo Kabushiki Kaisha | Battery capacity estimating system and method |
CN102544607A (en) * | 2012-02-13 | 2012-07-04 | 北京海博思创科技有限公司 | Method and device for obtaining residual electricity value of lithium ion battery and battery system |
CN102590755A (en) * | 2012-02-13 | 2012-07-18 | 北京海博思创科技有限公司 | Method and device for acquiring lithium ion battery capacity |
Non-Patent Citations (2)
Title |
---|
基于温度的Peukert方程在电池管理系统中的应用;武国良等;《仪器仪表学报》;20090630;第30卷(第6期);摘要、第730页左栏第1段-731页左栏第3段 * |
电动汽车用镍氢电池剩余电量估计方法研究;武国良;《中国博士学位论文全文数据库 工程科技Ⅱ辑》;20110815(第08期);论文第54页第1段-第62页第1段,图4-20、4-21 * |
Also Published As
Publication number | Publication date |
---|---|
CN103278760A (en) | 2013-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103278760B (en) | Power-type lithium ion battery method for estimating remaining capacity under different temperatures environment | |
EP3018753B1 (en) | Battery control method based on ageing-adaptive operation window | |
CN107037374B (en) | A kind of SOC and SOH combined estimation method of lithium ion battery | |
US10345390B2 (en) | Method and apparatus for correcting error occurring in estimation of battery life | |
CN105223487B (en) | A kind of multimode decoupling method of estimation of lithium ion battery | |
CN103257323B (en) | A kind of method of estimation of lithium ion battery residue utilisable energy | |
CN103197251B (en) | A kind of discrimination method of dynamic lithium battery Order RC equivalent model | |
CN103399277B (en) | A kind of power battery actual capacity estimation method | |
CN103823189B (en) | Method for calculating residual capacity of power battery pack | |
CN105676138B (en) | A kind of method and system of the remaining capacity of prediction battery | |
Xiong et al. | Research on an online identification algorithm for a thevenin battery model by an experimental approach | |
CN105548896A (en) | Power-cell SOC online closed-loop estimation method based on N-2RC model | |
CN103698710A (en) | Prediction method for life cycle of battery | |
CN108363017B (en) | Method for calibrating stable capacity value of retired lithium battery stored for long time | |
CN103744026A (en) | Storage battery state of charge estimation method based on self-adaptive unscented Kalman filtering | |
CN104459551A (en) | Electric vehicle power battery state-of-energy estimation method | |
CN103197256A (en) | State of charge (SOC) estimation method of lithium ion battery | |
CN105572596B (en) | Lithium battery SOC estimation method and system | |
CN103529400A (en) | Battery capacity forecasting method with self-adaptive temperature compensating function | |
Zhang et al. | A method of SOC estimation for power Li-ion batteries based on equivalent circuit model and extended Kalman filter | |
Petricca et al. | Automated generation of battery aging models from datasheets | |
CN105116338A (en) | Parallel type battery system modeling method based on SOC compensator | |
Degla et al. | Improved lithium‐ion battery model for photovoltaic applications based on comparative analysis and experimental tests | |
Lian et al. | Noise-immune state of charge estimation for lithium-ion batteries based on optimized dynamic model and improved adaptive unscented Kalman filter under wide temperature range | |
CN103235269A (en) | Method for estimating energy type lithium ion battery remaining capacity in wide temperature environment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |