听新闻，学英语 - 特斯拉电池大改进，续航加速更加强筋

New car battery: a milestone unveil /ʌn’veɪl/ v. 公布，揭幕，揭露 acceleration /əkselə’reɪʃ(ə)n/ n. 加速 reconfigure /riːkən'fɪgə/ v. 重新装配 sedan /sɪ’dæn/ n. 小轿车 Tesla Motors has unveiled a new battery pack for the performance versions of its Model S and X cars that will extend the range and mean faster acceleration. Elon Musk, chief executive of the electric car maker, hailed the upgraded battery as a "profound milestone". He said the battery cell chemistry is the same, but the reconfigured product stored more energy in the same space. Tesla, which this month posted a steeper-than-expected loss, is adding a new sedan car to its sports line-up. Mr Musk claimed that the new 100-kilowatt hour battery pack means high-end versions of the Model S sedan, called the P100D, will be the world's fastest accelerating car in production. It will do 0-60 mph in 2.5 seconds. He said there were faster cars on the market, but these were limited-run vehicles, while the Tesla is aimed at the mass market, he said.