What is the capacity of the starter battery for new energy electric vehicles?
1 Answers
New energy electric vehicle starter batteries include nickel-metal hydride batteries with 80A.h, nickel-cadmium batteries with 55W.h/kg, and sodium-sulfur batteries with 760W.h/kg. Introduction to Nickel-Metal Hydride Batteries: Ovonie currently offers two types of unit batteries: 80A.h and 130A.h, with a specific energy of 75–80W.h/kg and a cycle life exceeding 600 cycles. Introduction to Nickel-Cadmium Batteries: Their specific energy can reach 55W.h/kg, and specific power exceeds 190W/kg. Introduction to Sodium-Sulfur Batteries: Their theoretical specific energy is 760W.h/kg, with practical values already exceeding 100W.h/kg, which is 3–4 times that of lead-acid batteries. Another feature is their ability to discharge at high currents and power. Their discharge current density can generally reach 200–300mA/mm2, and they can instantaneously release three times their inherent energy. Additionally, they have high charge-discharge efficiency.