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SAE J2464 Standard ( EV Battery Testing )Introduction
  • SAE J2464 Testing divided into 3 parts.

    First , mechanical abuse testing ,testing item with shock impact test, free drop test, nail penetration test, roll-over test, immersion test, crush test.

    Second,thermal abuse testing , testing item with high temperature testing, thermal testing, thermal cycling testing.

    Third, electrical abuse testing, testing item with short circuit testing, over charge testing, over discharge testing. 

    SAE J2464 Mechanical Testing Item

    Test Item

    Testing Method

    Shock Impact Test

    Cell: Acceleration 150g, pulse duration 6ms, half-sine wave

    Module: Acceleration 50g, pulse duration 11ms, half-sine wave

    Pack: Acceleration 25g, pulse duration 15ms, half-sine wave

    Free Drop Test

    Drop from the most vulnerable direction with 2 feet height to the hard platform of the testing devices.

    Nail Penetration Test

    Cell: needle diameter 3mm , tapered off to a point. Nail penetration speed: 8cm/s or quicker, penetrate deepth, penetrate through the cell ;

    Module : needle diameter 20mm, tapered off to a point,. Speed 8cm/s or quicker, penetrate deepth: penetrate 3 cells or 100mm, choose the larger one.

    Roll-over Test

    1 round per minutes of the roll-over test devices

    Add 90 degree each time till the roll-over device rotate one round

    Observe 1 hour at each position

    Immersion Test

    Immersion the testing specimen into the salt water for at least 2 hours, salt water must inundate the test specimen

    Crush Test

    For battery module and battery packs, crush fixture should be one  half-column surface with lines fixture, the diameter same as the minimum size of the testing specimen.

    For X,Y,Z direction, at least test with two directions.

    Each testing specimen, crush to 85% of the initial dimension, and keep 5 minutes. Then continues crush to 50% of initial dimension, crush force can not larger than 1000 times of the testing specimens weight. 

    SAE J2464 Thermal Abuse Testing Item

    Test Item

    Testing Method

    Thermal Shock Cycling Test

    With the ECSS at 50% state of charge, contained in a closed volume,and all thermal controls disabled, thermally cycle the ECSS with ambient air cycling between 80to -40 . The time to reach each temperature extreme shall be 15 min or less, this test may be performed either through the use of fast-response chamber or by moving the test articles between two chambers at the two test temperatures. The ECSS shall remain at each extreme for a minimum of 1h at the cell level, 6h at the module level,or as required to reach uniform temperature at the pack level.A total of 5 cycles shall be performed

     

    SAE J2464 Electrical Abuse Testing

    Short Circuit Test

    Apply a hard short in less than 1s between the positive and negative terminals of the ECSS with and adequate conductor (5 mΩ)for10 min or until another condition occurs which prevents completion of the test. Continue observation for an additional period of 1 h.

    Over Charge Test

    Overcharge the fully charged ECSS at a constant charge current of 32A DC and voltage not to exceed 450V DC.Continue to overcharge until additional charge equal to the rated capacity of the battery is added or a test duration of 4 h is reached.

    Over Discharge Test

    Discharge the ECSS at the C/1 rate for 1h and 30 min or unitl every cell is reversed for 15 min. Passive integrated overdischarge protection shall remain operational throughout the test. All non passive protective devices shall be disabled prior to this test . 

Main Products : Environmental Chamber, Climatic Chamber, Thermal Shock Test Chamber, Walk in Test Chamber, Altitude Chamber, Battery safety testing equipments ,Tensile Testing Machine  etc. 

Tel:0086-769-23280910 Fax: 0086-769-22673576 Email : sales@bellgroup.cc Skype: bell.sales1&a