1
What is?
The material constituting the interior of the battery, the battery will be divided into different types.
2
You know what?
new energy battery are roughly classified into five categories, namely, lead-acid batteries, nickel-cadmium batteries and nickel hydrogen batteries, lithium batteries, lithium iron phosphate batteries, fuel cells.
3
To develop
Lead-acid batteries
Lead-acid battery as a relatively mature technology, because lower costs, but also high-rate discharge, remains the only available mass-produced electric vehicle batteries. When the Beijing Olympic Games, there are 20 lead-acid batteries for electric vehicles, to provide transport services for the Olympic Games. But the specific energy of lead-acid batteries are very low specific power and energy density as a power source for electric vehicles can not have good speed and mileage.
Nickel-cadmium batteries and nickel-hydrogen battery
Although the performance is better than lead-acid batteries, but contains heavy metals, abandoned after use will pollute the environment. Nickel-hydrogen battery has just entered the mature stage, is currently used in hybrid electric vehicle battery system is the only real validation was commercial, large-scale battery system, the existing hybrid battery market share of 99 percent nickel hydrogen batteries, commercial on behalf of Toyota Prius. The world’s major automotive battery manufacturers are Japan PEVE and Sanyo, PEVE Global Hybrid-powered cars occupy the nickel-metal hydride battery 85 percent market share.
Lithium Battery
traditional lead-acid batteries, nickel-cadmium batteries and nickel-metal hydride battery technology itself is relatively mature, but they are used in the car as a battery there is a big problem. At present, more and more car manufacturers to choose battery power lithium batteries as a new energy vehicles. Because the lithium ion battery has the following advantages: high voltage (nickel-cadmium batteries hydrogen –3 fold Ni batteries); than the energy (up to 165WH / kg, 3 times a nickel hydrogen battery); small; light weight ; long cycle life; self-discharge rate; no memory effect; no pollution.
Lithium iron phosphate battery
Lithium iron phosphate is a lithium battery, lithium cobalt oxide of less than half of its specific energy, but its safe, can be up to 2000 times the number of cycles, the discharge stability, low price to become the new vehicle selection power. “Iron battery”, people in the industry believe that BYD is a greater possibility of lithium iron phosphate.
Fuel cell
Briefly, a fuel cell (FuelCell) is a fuel with an oxidant present in the chemical energy directly into electrical energy generating device. Feeding fuel and air, respectively the fuel cell, electricity is produced wonderful. From the outside it has positive and negative electrodes and electrolytes, like a battery, but in fact it can not “power storage” but a “power plant.” It is most promising for automotive proton exchange membrane fuel cell.