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GB/T31485 - 2015 'electric car battery with dynamic safety requirements and test methods, technical requirements

by:GESTER Instruments     2020-12-17
Should the market demand, electric cars, more and more popular, is not only expanding its application range and quantity, single battery energy demand is becoming more and more high. And out of lithium battery safety accidents of electric vehicle and that consumers are paying more attention to the safety of lithium-ion batteries. Security with lithium batteries for electric cars, were published on May 15, 2015 is suitable for the national standard GB/T31485 - 2015 'electric car battery with dynamic safety requirements and test methods, this standard. And we have also developed a design for the standard for the standard technical requirements of the relevant equipment tested, finishing as follows: a, monomer battery safety testing: 6. 2. All safety trials 1 general requirements under the environmental conditions with full security and protection. If you have any additional test object active protection circuit or device, should be removed. 6. 1. 3 monomer battery at room temperature, monomer battery with 1 i1 (first A) Current discharge to the discharge specified in the technical conditions of the enterprise termination voltage, put 1 h ( Or enterprises with no greater than 1 h on time) And then according to the enterprise to provide charging method for charging. If the enterprise fails to provide the charging method, the charging method based on the following: a) For lithium ion battery to 1 i1 ( A) Current constant current charging to the charging termination specified in the technical conditions of the enterprise when the voltage constant voltage charging, and charging current drop to zero. 05I1( A) When to stop charging, charging shelved after 1 h ( Or enterprises with no more than 1 h on time) ; b) For nickel metal hydride batteries, il 1 ( A) Current constant current charging 1 h, and then to 0. After 2 i1 charging 1 h, charging stand for 1 h ( Or enterprises with no greater than 1 h incubation time) 。 Detailed technical requirements and test methods as follows: 2, the battery module safety testing: 6. 3. 1 general requirements test battery module samples shall meet the following conditions: & ndash; — The total voltage not less than 5 times of single battery voltage; — — Nominal capacity is not lower than zO Ah, or nominal capacity is consistent with the vehicle battery systems. Note: test battery module may consist of series-parallel actual module. All safety trials in full security and protection of the environment conditions. If you have any additional test object active protection circuit or device, should be removed. 6. 1. 4 battery charging module at room temperature, battery module according to the first 1 i1 ( A) Current discharge to any single battery voltage to discharge end voltage. Put 1 h ( Or enterprises with no more than 1 h on time) And then according to the enterprise to provide charging method for charging. If the enterprise fails to provide the charging method, the charging method based on the following: a) For lithium ion battery to 1 i1 ( A) ) Current constant current charging to the charging termination specified in the technical conditions of the enterprise when the voltage constant voltage charging, and charging current drop to zero. 05I1( A) Stop charging, if have a monomer in the process of charging battery charging voltage than termination voltage is 0. 1 stop charging Ⅴ. Charging shelved after 1 h ( Or enterprises with no more than 1 h on time) 。 b) For nickel metal hydride batteries, with 1 i1 ( A) Current constant current charging 1 h, and then to 0. After 2 i1 charging 1 h, charging stand for 1 h ( Or enterprises with no more than 1 h incubation time) 。 Detailed technical requirements and test methods as follows: note: this article from the jester testing equipment, reprint please indicate the url: https://www. gesterinstruments。 Com/tags: & nbsp  lithium battery test equipment & nbspGB/T 31485 test requirements and methods & NBSP power battery safety testing equipment
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