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Fuel Cell
The fuel cell is a device that can directly convert the chemical energy contained in the fuel and oxidant into electrical energy. Advantage: High-efficiency power generation, less environmental pollution Disadvantage: price is too high,Limited hydrogen storage technology
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Li-ion Batteries
Lithium-ion battery is a rechargeable battery, which mainly depends on the lithium ions moving between the positive electrode and the negative electrode. Advantage: high voltage , long life,low self-discharge rate Disadvantage:Poor safety performance
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Problem
1. Battery technology is not mature enough, car traveling a short distance with the battery, if add the battery, the weight of car will increase, the efficiency will decline. 2. Large current discharge easily result the battery单击此处添加 heating, causing 单击此处添加 段落文字内容 段落文字内容 the battery to burn. 3. Short circuit the battery prone to explosion 4. Battery charging time is too long.
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Summary
Today, energy shortages, environmental pollution is getting worse. clean energy vehicles have become the trend of the future development of the automotive industry. But the technology is not very mature. There are some problems in security, fast-charging, decline the cost, increasing the battery capacity.
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Classification
Lead-acid battery Ni-MH battery
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Fuel Cell
Li-ion Batteries
Page 44L来自GOLead-acid battery
Lead-acid batteries are batteries whose electrode mainly made of lead, and electrolyte is a sulfuric acid solution. Advantage: voltage stability, low price Disadvantage: low specific energy,Life is short, frequent routine maintenance
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Guanglou Jia
Contents
Classification Development Status Problems Summary
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Background
With the development of new energy vehicles, new energy automotive batteries are also more and more innovative. New energy automotive batteries is the use of new energy technologies to reduce "greenhouse gas" emissions.
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Ni-MH battery
Certain metal has a strong ability to capture hydrogen.At a certain temperature and pressure conditions,these metals can absorb a large number of hydrogen, the reaction of metal hydrides, 文字内容 and release heat.文字内容 Then, the metal hydride is heated, they will decompose to hydrogen and released. Advantage: high specific energy,life is long Disadvantage:price is too high, poor uniformity, high self-discharge rate