Presentation is loading. Please wait.

Presentation is loading. Please wait.

Fig. 1 RELATIONSHIP BETWEEN SOC AND THERMAL STARTING TEMPERATURE.

Similar presentations


Presentation on theme: "Fig. 1 RELATIONSHIP BETWEEN SOC AND THERMAL STARTING TEMPERATURE."— Presentation transcript:

1 Fig. 1 RELATIONSHIP BETWEEN SOC AND THERMAL STARTING TEMPERATURE

2 Fig. 2 RELATIONSHIP BETWEEN SOC AND CALORIFIC VALUE

3 FIG. 3 INTERNAL SHORT CIRCUIT(SIMULATION) CYLINDRICAL :ICR18650 SOC :50% HIGHEST TEMPERATURE :336℃ AMBIENT TEMPERATURE :100℃

4 FIG. 4 INTERNAL SHORT CIRCUIT (SIMULATION) CYLINDRICAL :ICR186 50 SOC :70% HIGHEST TEMPERATURE :387℃ AMBIENT TEMPERATURE :100℃

5 FIG. 5 INTERNAL SHORT CIRCUIT (SIMULATION) CYLINDRICAL :ICR 18650 SOC :100% AMBIENT TEMPERATURE :100℃

6 FIG. 6 HEAT SPREAD AFTER SHORT CIRCUIT ( at100 ℃) s0.2s0.3s0.4s0.5s0.6s0.7s0.8s SOC 100% SOC 70% SOC 50% TEMPERATURE BECOMES OVER DECOMPOSING TEMTERATURE OF ACTIVE MATERIALS AT LIMITED AREA AT PLACES OF INTERNAL SHORT CIRCUIT ALL BATTERIES BURNT DOWN DUE TO CHAIN REACTION TEMPERATURE BECOMES DOWN DUE TO HEAT SPREAD

7 GRAPH 1. INTERNAL SHORT CIRCUIT TEST (CRUSH TEST) PRISMATIC :ICP103450 AMBIENT TEMPERATURE :100℃ ● : HEAT GENERATED ( NO THERMAL RUNAWAY ) DATA AT TEST ATTACHED △ : SMOKE OR BURST OCCURED VOLTAGESOC 4.19V100% 100 ℃△△△△△△△△△△ 3.82V50% 100 ℃ ○○○○○ LEGEND OF TEST RESULT HIGHEST TEMP. OF BATTERIES (℃) CHRGE CONDITIONS TEST TEMP.TEST RESULTS

8 FIG. 7 INTERNAL SHORT CIRCUIT TEST (CRUSH TEST) PRISMATIC :ICP103450 SOC :100 % AMBIENT TEMPERATURE :100℃ The burst occurred at the moment of short circuit Cell Temperature Cell Voltage

9 FIG. 8 INTERNAL SHORT CIRCUIT TEST (CRUSH TEST) PRISMATIC :ICP103 450 SOC :50 % AMBIENT TEMPERATURE : 100℃ Heat generation occurred by short circuit after reaching the highest temperature ( 116 ℃), cell temperature fell gradually. Cell Temperature Cell Voltage

10 FIG. 9 INTERNAL SHORT CIRCUIT TEST(CRUSH TEST ) PICTURE SHOWN AFTER CRUSH PRISMATIC :ICP103450 SOC :100 % AMBIENT TEMPERATURE :100℃ No.1No.2 No.3No.4 No.5 BATTERY TOP BATTERY SIDE

11 FIG. 10 INTERNAL SHORT CIRCUIT TEST(CRUSH TEST ) PICTURE SHOWN AFTER CRUSH PRISMATIC :ICP103450 SOC :50 % AMBIENT TEMPERATURE :100℃ No.4 No.1 No.2 No.3 No.5 BATTERY TOP BATTERY SIDE


Download ppt "Fig. 1 RELATIONSHIP BETWEEN SOC AND THERMAL STARTING TEMPERATURE."

Similar presentations


Ads by Google