Musings about Electric Vehicles (EVs) （思考关于电动车(电动汽车)）.pdf

Musings about Electric Vehicles (EVs) /science/ElectricCarsMusings.pdf L. David Roper, roperld@, /personal/roperldavid.htm 22 May 2017 When an affordable 500-miles battery is ready, say goodbye to the gasoline car. /science/BEVvsICECost.htm Introduction I have been interested in electric vehicles (EVs) for several years. I bought my first EV, a small pickup, the ZAP Xebra PK, in 2007. I drove it about 3000 miles and gave it away in January 2010. I describe it as a toy electric car. I learned from that experience never again to drive an electric vehicle that uses lead-acid batteries for propulsion. (Ref. 1) Prior to that I bought a Toyota Prius in 2005 and converted it to a Hymotion plug-in in October 2008. When I leased a Nissan LEAF in 2013 I sold the plug-in Prius to my granddaughter for about half price. (Ref. 2) In May 2012 I leased a 2012 Nissan LEAF SL (range: 73 miles) for 3 years. It was an excellent vehicle. In March 2015 I leased a 2015 Nissan LEAF SV for 2 years. It has a longer EPA range (84 miles) than the 2012 LEAF and charges about twice as fast (6.6 kW versus 3.3 kW). I leased because the technology, especially for batteries, used in electric vehicles is changing rapidly and because batteries’ capacity decay with time. Later, Consumer Reports recommended leasing EVs for the same reasons, the first time they have recommended leasing a car. (Ref. 3) My oldest daughter bought the 2015 LEAF after I returned it to Nissan. In 2017 I bought a Chevrolet Bolt EV (CBEV) Premium with Driver Confidence Package and fast-charging capability. With its EPA range of 238 miles and fast acceleration (0-30-mph in 2.9 seconds and 0-60-mph in 6.5 seconds) I am extremely pleased Cajun Red Tintcoat By driving these electric vehicles I learned