日本将对电动汽车的购买激励措施提高一倍，补贴最高达到7,000美元，与美国和欧洲的类似措施相当，此外日本还计划对充电基础设施进行补贴。

Japan will double its incentives to buy electric vehicles, with subsidies up to $7000, which is equivalent to similar measures in the United States and Europe. In addition, Japan plans to subsidize charging infrastructure.