1990-present: The dwindling of petroleum resources and the serious pollution of the
atmospheric environment make people pay more attention to electric vehicles. Before
1990, the use of electric vehicles was mainly promoted by the private sector. For
example, a non-governmental academic organization established in 1969: World Electric
Vehicle Association (World Electric Vehicle Association). The World Electric Vehicle
Association organizes professional electric vehicle academic conferences and
exhibitions in different countries and regions in the world every year and a half,
Electric Vehicle Symposium and Exposition (EVS). Since the 1990s, major automobile
manufacturers began to pay attention to the future development of electric vehicles and
began to invest funds and technology in the field of electric vehicles. At the Los
Angeles Auto Show in January 1990, the president of General Motors introduced Impact
pure electric cars to the world. Ecostar used calcium-sulfur batteries for Ford in
1992, RAV4LEV for Ni-MH batteries used by Toyota in 1996, Clio from Renault in France
in 1996, Prius hybrid car from Toyota rolled off the assembly line in 1997, and Nissan
was the world’s first car in 1997 Prairie Joy EV, an electric vehicle that uses
lithium-ion batteries, was launched and sold hybrid Insight in 1999 by Honda Motor.