SAFETY TESTS FOR PHYLION Li-ion ion BATTERY

Transcription

1 SAFETY TESTS FOR PHYLION Li-ion ion BATTERY Prepared:Jun Li Approved:Yu Wu 1

2 CONTENTS 1. Introduction 2. Test Items Cells Battery Packs. Results Cells Battery Packs 4. Summary 2

3 1.INTRODUCTION 1.1 Cells: Type:XH-10AH Nominal Voltage:.7V Nominal Capacity:10AH Max Discharging Current:20A Weight:Approx.60g

4 1.INTRODUCTION 1.2 Battery Packs: Type:XH70-10J Nominal Voltage :7V Nominal Capacity :10AH Max Discharging Current :20A Weight :Approx..8Kg Application:E-bike 4

5 2.TEST ITEMS 2.1 Cells Test Items Test Conditions Requirements No.of cells Standards Impact Flat Vertical 9.1kg mass,0.61m height, Φ15.8mm bar UL Crush Flat 1KN force UL Vertical Hot Box 150,10min 5 UL (at a rate of 5 /min) Overcharge 0A,10V 5 UL Short Circuit R<100mΩ 5 UL Penetration Φ5mm nail penetrates the cell vertically 5 QB 5

6 2.TEST ITEMS 2.2 Battery Packs Test Items Test Conditions Requirements No.of packs Standards Crush Flat 1KN force UL Impact Flat Vertical 9.1kg mass,0.61m height, Φ15.8mm bar 2 UL Hot Box 10,0min UL Vibration g,10-50hz, 1oct/min, OCV<10%, QB directions mass loss<0.1% Overcharge 60V,5A QB Drop 1m height,6 surfaces UL Discharge at Max Discharge Current 20A QB Short Circuit R<100mΩ QB Forced Discharge 20A,0min,, Max. Temp.<150 QB 6

7 .RESULTS.1 Cells Test Items Requirements Evaluation Impact Flat Vertical Crush Flat Vertical Hot Box Overcharge Short Circuit Penetration 7

8 .RESULTS.2 Battery Packs Test Items Requirements Evaluation Crush Impact Flat Vertical Hot Box Vibration OCV<10%, mass loss<0.1% Overcharge Drop Discharge at Max Discharge Current Short Circuit Forced Discharge Max Temp.<150 8

9 .1.1 Impact Test Conditions:Fully charged, 4.2V A 9.1KG weight is dropped from a height of 0.61m onto the sample. (Bar: 15.8mm diameter) Requirements:No fire, No explosion(ul1642) Cell No. OCV before test (V) OCV after test (V) Temp. before test ( ) Max Temp. ( ) Fire, Explosion Result Flat Vertical

10 .1.1 Impact Flat Vertical Cells were deformed, but have no safety issue. 10

11 .1.2 Crush Test Conditions:Fully charged, 4.2V,Apply 1KN force Requirements:No fire, No explosion(ul1642) Cell No. OCV before test (V) OCV after test (V) Temp. before test ( ) Max Temp. ( ) Fire, Explosion Result Flat Vertical

12 .1.2 Crush Cells were deformed, but have no safety issue. Flat Vertical 12

13 .1. Hot Box Test Conditions:Fully charged, 4.2V, 150,10min (5 /min) Requirements:No fire, No explosion(ul1642) Cell No. OCV before test (V) Fire, Explosion Result

14 .1. Hot Box Cells were bulged, but have no safety issue. 14

15 .1.4 Overcharge Test Conditions:Fully charged, 4.2V, CC 0A, CV 10V Requirements:No fire, No explosion(ul1642) Cell No. OCV before test (V) Max Temp. ( ) Fire, Explosion Result

16 .1.4 Overcharge Cells were bulged, but have no safety issue. 16

17 .1.5 Short Circuit Test Conditions:Fully charged,r<100mω Requirements:No fire, No explosion(ul1642) Cell No. OCV before test (V) Max Temp. ( ) Fire, Explosion Result

18 .1.5 Short Circuit Cells were bulged, but have no safety issue. 18

19 .1.6 Penetration Test Conditions:Fully charged, 4.2V,cells was penetrated vertically by aφ5mm nail (the nail remained in cells) Requirements:No fire, No explosion (QB) Cell No. OCV before test (V) Max Temp. ( ) Fire, Explosion Result

20 .1.6 Penetration Cells penetrated by a nail Cells were penetrated, but have no safety issue. 20

21 .2.1 Crush Test Conditions:Fully charged, 42V,Apply 1KN force Requirements:No fire, No explosion (UL2054) Pack No. OCV before test (V) Fire, Explosion Result

22 .2.1 Crush Vertical Battery packs were not deformed. And no obvious change of voltage & temp. 22

23 .2.2 Impact Test Conditions: Fully charged, 42V A 9.1KG weight is dropped from a height of 0.61m onto the sample. (Bar: 15.8mm diameter) Requirements:No fire, No explosion(ul2054) Pack No. OCV before test (V) OCV after test (V) Max Temp. ( ) Fire, Explosion Result Flat Vertical

24 .2.2 Impact Flat Vertical Batteries deformed, BMS s case was split. But it have no safety issue. 24

25 .2.2 Impact There was no change of voltage & temp. 25

26 .2. Hot Box Test Conditions: Fully charged, 42V,10, 0min (5 /min) Requirements:No fire, No explosion(ul2054) Pack No. OCV before test (V) Max Temp. ( ) Fire, Explosion Result

27 .2. Hot Box Battery packs were deformed, but have no safety issue. 27

28 .2.4 Drop Test Conditions: Fully charged, 42V, Battery pack is dropped per each of directions onto concrete from 1 meter height Requirements:No fire, No explosion(ul2054) Pack No. OCV before test (V) OCV after test (V) Max Temp. ( ) Fire, Explosion Result

29 .2.4 Drop Top Bottom Front Back BMS was destructed, but the pack has no safety issue. Left Right 29

30 .2. 4 Drop There was no obvious change of voltage & temp 0

31 .2.5 Vibration Test Conditions:Fully charged, 42V, g, 10-50HZ, 1oct/min, directions Requirements:No fire, No explosion, OCV<10%, mass loss<0.1% (QB) Pack No. OCV before test (V) OCV after test (V) Smoke Fire, Explosion Result

32 .2.5 Vibration There was no obvious change of voltage & temp. 2

33 .2.6 Overcharge Test Conditions: Fully charged, 42V, CC 5A,CV 60V Requirements:No fire, No explosion, Temp.<150 (QB) BMS was operated and simultaneously charging was cut off. No obvious change of temp.

34 .2.7 Short Circuit Test Conditions: Fully charged, 42V <100mΩ(with BMS and Fuse) Requirements:No fire, No explosion, Temp.<150 (QB) Fuse was disconnected and discharging was cut off. 4

35 .2.8 Forced Discharge Test Conditions: Fully charged, 42V, 20A CC discharge Requirements:No fire, No explosion, Temp.<150 (QB) BMS was operated and simultaneously charging was cut off. 5

36 .2.9 Discharge at Max Discharge Current Test Conditions: Fully charged, 42V, 20 CC discharge Requirements:No fire, No explosion, Temp.<150 (QB) Discharge Current=20A 6

37 4.SUMMARY Cells Test Items Test Conditions Requirements Standards Evaluation Impact Flat Vertical 9.1kg mass,0.61m height, Φ15.8mm bar UL Crush Flat 1KN force UL Vertical Hot Box 150,10min (at a rate of 5 /min) UL Overcharge 0A,10V UL Short Circuit R<100mΩ QB Penetration Φ5mm nail penetrates the cellvertically QB 7

38 4.SUMMARY Battery Packs Test Items Test Conditions Requirements Standards Evaluation Crush Flat 1KN force UL Impact Flat Vertical 9.1kg mass,0.61m height, Φ15.8mm bar UL Hot Box 10,0min UL Vibration g,10-50hz, 1oct/min, OCV<10%, QB directions mass loss<0.1% Overcharge 60V,5A QB Drop 1m height, direction UL Discharge at Max Discharge Current 20A QB Short Circuit R<100mΩ UL Forced Discharge 20A, 0min, Max. Temp.<150 QB 8

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