Question

Example 1 Consider a battery package of 50 kWh. Figures below show the specific resistance and reversible potential of the battery as a function of SoC. The Tafel overpotential is δTafel-_0.05+ 0.08 logi At a charge rate of 2C, the cross-sectional current density is 50 A/m2. Ignore the potential loss due to concentration 2.5 Assume the battery pack has a POC of 50%. Charging at 2C, what is the Specific Resistance -Reversible Potential ntial Efficiency Irre 2.1 よ。 1.9 e heat 3.7 What is the effect when the charging rate is increased to 4C? 3.4 3.1 SOC / % 2.8 100 1.5 20 40 60 80

Answer 1