The following electric vehicle resource network briefly introduces the power battery inspection items corresponding to GB/T31484-2015, GB/T31485-2015, GB/T31486-2015, and GB/T31467.3-2015.
First, GB/T31484-2015
GB/T31484-2015 "Recycling life requirements and test methods for power batteries for electric vehicles" stipulates the requirements for standard cycle life of electric power batteries for electric vehicles, test methods, inspection rules and test conditions and inspection rules for working cycle life. It evaluates the cycle life indicators of power battery cells and modules, covering two different markets of passenger cars and commercial vehicles, as well as power batteries of two different application types, power and energy.
GB/T31484-2015, the inspection items are: (1) room temperature discharge capacity and energy (2) room temperature power (3) standard cycle life (4) hybrid power car battery power cycle life (5) mixed Power commercial battery power battery cycle life (6) pure electric passenger car energy battery operating cycle life (7) pure electric commercial vehicle energy battery operating cycle life (8) plug-in and increase Program battery life cycle life of electric vehicles.
Second, GB/T31485-2015
GB/T31485-2015 "Safety Requirements and Test Methods for Power Battery for Electric Vehicles" stipulates the safety requirements, test methods and inspection rules for power batteries for electric vehicles. It mainly assesses the safety indicators of power battery cells and modules, and focuses on chemical energy. The protection, given a series of abuse conditions and safety requirements and inspection specifications in extreme cases, the standard applies to lithium-ion batteries and metal hydride nickel battery cells and modules loaded on electric vehicles, other types of batteries refer to the implementation .
In GB/T31485-2015, the single battery test items and battery module test items have the following 10 items, but the test methods are different: (1) over discharge (2) overcharge (3) short circuit (4) drop (5) heating (6) Extrusion (7) acupuncture (8) seawater immersion (9) temperature cycle (10) low pressure and the like. It should be noted that the acupuncture test is not implemented when applying for new energy vehicle product access.
Third, GB/T31486-2015
GB/T31486-2015 "Electrical Performance Requirements and Test Methods for Power Battery for Electric Vehicles" stipulates the electrical performance requirements, test methods and inspection rules for power batteries for electric vehicles, mainly for the appearance, size, weight and room temperature discharge of battery cells. The capacity, as well as the appearance, size, weight, room temperature performance, high and low temperature performance, vibration resistance, storage and other aspects of the module are specified. This standard applies to lithium-ion batteries and metal hydride nickel battery cells and modules mounted on electric vehicles. Other types of batteries are referred to.
GB/T31486-2015, single battery test items are: (1) appearance (2) polarity (3) external dimensions and quality (4) room temperature discharge capacity (5) -20 ° C discharge capacity (6) 55 ° C discharge Capacity (7) Normal temperature rate discharge capacity (energy type) (8) Normal temperature rate discharge capacity (power type) (9) Normal temperature charge retention and capacity recovery capability (10) High temperature charge retention and capacity recovery capability (11) Storage; The battery module inspection items are: (1) Appearance (2) Polarity (3) Dimensions and quality (4) Room temperature discharge capacity (5) Room temperature ratio Discharge capacity (energy type) (6) Normal temperature rate discharge capacity (power type) (7) Room temperature rate charging performance (8) Low temperature discharge capacity (9) High temperature discharge capacity (10) Normal temperature charge retention and capacity recovery capability (11) High temperature charge retention and capacity recovery capability (12) Vibration resistance (13) Storage Wait.
Fourth, GB/T31467.3-2015
GB/T31467.3-2015 "Lithium-ion power battery packs and systems for electric vehicles Part 3: Safety requirements and test methods" stipulates the requirements and test methods for the safety of lithium-ion battery packs and systems for electric vehicles. This part is applicable to lithium ion power battery packs and systems mounted on electric vehicles, and nickel-hydrogen power battery packs and systems can be referred to.
In GB/T31467.3-2015, the test items required for lithium ion power battery packs or systems are: (1) vibration test (2) mechanical shock (3) drop (4) flip (5) simulated collision (6) squeeze Pressure (7) Temperature shock (8) Wet heat cycle (9) Seawater immersion (10) External fire (11) Salt spray (12) High altitude (13) Over temperature protection (14) Short circuit protection (15) Overcharge protection (16 ) Over-discharge protection, etc. For the case that is covered by the vehicle body and constitutes the battery case, it is required to carry the case/body test; when the battery pack or system is large in size and cannot be tested for the stand, the subsystem test can be performed.
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