Variability of Battery Wear in Light Duty Plug-In Electric Vehicles Subject to Ambient Temperature, Battery Size, and Consumer Usage: Preprint

Research output: Contribution to conferencePaper

Abstract

Battery wear in plug-in electric vehicles (PEVs) is a complex function of ambient temperature, battery size, and disparate usage. Simulations capturing varying ambient temperature profiles, battery sizes, and driving patterns are of great value to battery and vehicle manufacturers. A predictive battery wear model developed by the National Renewable Energy Laboratory captures the effects ofmultiple cycling and storage conditions in a representative lithium chemistry. The sensitivity of battery wear rates to ambient conditions, maximum allowable depth-of-discharge, and vehicle miles travelled is explored for two midsize vehicles: a battery electric vehicle (BEV) with a nominal range of 75 mi (121 km) and a plug-in hybrid electric vehicle (PHEV) with a nominal charge-depleting rangeof 40 mi (64 km). Driving distance distributions represent the variability of vehicle use, both vehicle-to-vehicle and day-to-day. Battery wear over an 8-year period was dominated by ambient conditions for the BEV with capacity fade ranging from 19% to 32% while the PHEV was most sensitive to maximum allowable depth-of-discharge with capacity fade ranging from 16% to 24%. The BEV and PHEV werecomparable in terms of petroleum displacement potential after 8 years of service, due to the BEV?s limited utility for accomplishing long trips.
Original languageAmerican English
Number of pages14
StatePublished - 2012
EventInternational Battery, Hybrid and Fuel Cell Electric Vehicle Symposium 26 (EVS26) - Los Angeles, California
Duration: 6 May 20129 May 2012

Conference

ConferenceInternational Battery, Hybrid and Fuel Cell Electric Vehicle Symposium 26 (EVS26)
CityLos Angeles, California
Period6/05/129/05/12

NREL Publication Number

  • NREL/CP-5400-53953

Keywords

  • battery calendar life
  • BEV
  • cycle life
  • EVS26
  • lithium ion batteries
  • PHEV

Fingerprint

Dive into the research topics of 'Variability of Battery Wear in Light Duty Plug-In Electric Vehicles Subject to Ambient Temperature, Battery Size, and Consumer Usage: Preprint'. Together they form a unique fingerprint.

Cite this