Estimating method for power-type lithium ion battery remaining capacity under different temperature environments
A lithium-ion battery, temperature environment technology, applied in the direction of single semiconductor device testing, etc., can solve the problem that the battery does not consider the impact of temperature on the remaining battery power
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specific Embodiment approach 1
[0035] Specific implementation mode 1: The method for estimating the remaining power of a power type lithium-ion battery under different temperature environments in this implementation mode is implemented according to the following steps:
[0036] 1. Under the temperature condition of T1=35℃, the lithium-ion battery is subjected to six rate discharge tests of 10C, 7C, 5C, 3C, 1C and 1 / 3C, and the lithium-ion battery is tested at 10C, 7C, 5C, 3C, The discharge capacity of the six rates of 1C and 1 / 3C is denoted as C 10C1 , C 7C1 , C 5C1 , C 3C1 , C 1C1 , C 1 / 3C1 ;
[0037] Under the temperature condition of T2=25°C, the lithium-ion battery was subjected to six rate discharge tests of 10C, 7C, 5C, 3C, 1C and 1 / 3C, and the lithium-ion battery was tested at 10C, 7C, 5C, 3C, 1C and The discharge capacity of the six rates of 1 / 3C is denoted as C 10C2 , C 7C2 , C 5C2 , C 3C2 , C 1C2 , C 1 / 3C2 ;
[0038]Under the temperature condition of T3=10°C, the lithium-ion battery w...
specific Embodiment approach 2
[0061] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 1, the lithium-ion battery is subjected to six steps of 10C, 7C, 5C, 3C, 1C and 1 / 3C under the temperature condition of T1=35°C. The specific rate discharge test is as follows:
[0062] Step 1: Charge the lithium-ion battery at a rate of 1 / 3C at room temperature;
[0063] Step 2: Place the lithium-ion battery in an incubator whose temperature is set to T1=35°C for 12 hours;
[0064] Step 3: Then discharge, discharge to the cut-off voltage, and record the discharge capacity of the lithium-ion battery at six rates of 10C, 7C, 5C, 3C, 1C and 1 / 3C, respectively denoted as C 10C1 , C 7C1 , C 5C1 , C 3C1 , C 1C1 , C 1 / 3C1 . Other steps and parameters are the same as those in Embodiment 1.
specific Embodiment approach 3
[0065] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is that in step 1, the lithium-ion battery is subjected to 10C, 7C, 5C, 3C, 1C and 1 / 3C under the temperature condition of T2=25°C The discharge test of six rates is as follows:
[0066] Step 1: Charge the lithium-ion battery at a rate of 1 / 3C at room temperature;
[0067] Step 2: Place the lithium-ion battery in an incubator whose temperature is set to T2 = 25°C for 12 hours;
[0068] Step 3: Then discharge, discharge to the cut-off voltage, and record the discharge capacity of the lithium-ion battery at six rates of 10C, 7C, 5C, 3C, 1C and 1 / 3C, respectively denoted as C 10C2 , C 7C 2,C 5C2 , C 3C2 , C 1C2 , C 1 / 3C2 . Other step parameters are the same as those in Embodiment 1 or 2.
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