试验项目章节号标准要求Testtemperature 4.4Generalchargeconditions 7.1 Temperature°CBEV application02545SOCadjustment7.31/3ItCapacity 7.2c) Current-voltage characteristic testCurrent-voltage characteristics shall be determined bsecond pulse, when a constant current is discharged and charged under the conditio1) SOC shall be adjusted to 20 %, 50 %, and 80 % acco2) The cell temperature at test commencement shall be, , , and –.3) The cell is charged or discharged at each value ofrated capacity level, and the voltage is measured at the end of the 10 s pulse. Thcharge and discharge current shall be specified by the manufacturer, and the standinterval shall be 1 s. If the voltage after 10 s exceeds the discharge lower limitupper limit voltage, the measurement data shall be omitted.NOTE The charge/discharge limits at low temperature specified by 7.4.1Test methodThe test shall be carried out in accordance with the a) Mass measurement Mass of the cell shall be measured as specified in Clause 6.b) Dimension measurementDimension of the cell shall be measured as specified Step 2 – The cell shall be discharged at specified temperature at a constant currend-of-discharge voltage that is provided by the manufacturer. The discharge curreNOTE Selective test conditions are shown in Table A Annex A.The method of designation of test current It is defined in IEC 61434.Discharge current AStep 3 – Measure the discharge duration until the specified end-of discharge voltcalculate the capacity of cell expressed in Ah up to three significant figures.The test cells shall be charged as specified below. Tfor preparing cells to the various SOCs for the tests in this standard.Step 1 - Thcharged in accordance with 7.1.Step 2 - The cell sh...
