1, lead-acid batteries
Lead-acid batteries have more than 100 years of history, widely used as a starting power source for internal combustion engine vehicles.
2, nickel-cadmium batteries
At present, the nickel-cadmium battery is the second most widely used lead-acid battery, its specific energy is up to 55W · h / kg and the specific power is more than 190W / kg. It can be recharged quickly and has a long cycle life, twice that of lead-acid battery More than 2000 times, but the price of 4-5 times for lead-acid batteries.
3, nickel-metal hydride batteries
Nickel-metal hydride batteries and nickel-cadmium batteries, also belong to alkaline batteries, and its characteristics and nickel-cadmium batteries similar, but nickel-metal hydride batteries do not contain cadmium, copper, there is no heavy metal pollution problems.
4, sodium sulfur battery
Sodium sulfur battery is also generally optimistic about the recent electric car battery. Sodium sulfur batteries exist mainly in high temperature corrosion, short battery life. Performance stability and the use of security is not ideal and other issues.
5, zinc air battery
The potential specific energy of zinc-air batteries is about 200w · h / kg. It currently has short life, low power, can not output large current and difficult to charge shortcomings
6, flywheel battery
Flywheel battery is the concept of the new concept of the battery put forward in the 90s, it broke through the limitations of chemical batteries, using physical methods to achieve energy storage.
7, fuel cell
A fuel cell is a power plant that converts the chemical energy stored in fuel and oxidizer directly into electricity through electrode reactions. It does not experience the heat process, not limited by the thermodynamic cycle, so the energy conversion efficiency.
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