空气污染、全球变暖和不断增长的能源需求，是人类目前面对的三大问题。汽车的电动化有望缓解或部分解决这些问题。一些主要国家已经制定了雄心勃勃的未来目标：到2020年，中国将有500万辆电动汽车上路，日本国200万辆，德国100万辆；而美国，到2015年，将有100万辆。这些国家正在热心地开发先进电池、燃料电池汽车、安全汽车、零碰撞汽车、联网汽车和自主汽车；此外，还包括“车到家、家到车”系統、用于居住社区的超小型汽车和紧急呼叫系統。借助于这些广泛领域的技术，人类有望创建一个新的产业乃至一个可持续性的社会。%World people are simultaneously dealing with the air pol ution, global warming and increasing energy demand. So, the automobile electriifcation is expected to be a promising solution in major countries to overcome the worldwide stringent regulation of the fuel saving after 2020. Their ambitious goals of the electric vehicles on roads in 2020 are ifve mil ion in China, two mil ion in Japan, one mil ion in Germany, and one mil ion in USA in 2015. Those countries are keen on developing advanced batteries, fuel-cel vehicles, safety vehicles, col ision-free vehicles, connected vehicles and autonomous vehicles, moreover, vehicle-to-home/home-to-vehicle systems, ultra-smal mobility used in residential areas, and emergency cal systems. Through technologies from these wide ifelds, people are aiming at creating a new business and even a sustainable society.
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