电动汽车科技含量高、经济效益好、资源消耗低、环境污染少,是当代汽车产业竞争的焦点之一。美国、法国、日本、德国、英国、意大利、瑞士等国已率先跨入电动汽车产业化、商业化的行列。我国在电动汽车研发方面呈现出明显的跟进战略特点,与发达国家的科技水平差距不是很大,我国 Electric vehicle technology is high, good economic returns, low resource consumption, less environmental pollution, is one of the contemporary automobile industry competition focus. The United States, France, Japan, Germany, Britain, Italy, Switzerland and other countries have taken the lead in entering the industrialization and commercialization of electric vehicles. China has shown obvious follow-up strategic features in the R & D of electric vehicles. The gap between the technology level of developed countries and that of developed countries is not large. Our country