详情

Electric Vehicle Battery Durability and Reliability under Electric Utility Grid Operations

项目名称：	Electric Vehicle Battery Durability and Reliability under Electric Utility Grid Operations
摘要：	Battery degradation is extremely important to EV technologies and is a function of several factors, such as electrode chemistries, operating temperatures, and usage profiles (i.e. vehicle-only vs. vehicle-to-grid applications). The goal of this research is to assess such impacts. Laboratory testing of commercial "18650" Li-ion cells was conducted in Hawaii Natural Energy Institute’s Battery Testing laboratory. The battery test plan used two separate experiments: a cycling experiment to assess the impact of both V2G and G2V strategies and a calendar aging experiment to assess the impact of temperature and SOC. The results to date have shown an undeniable impact of V2G, temperature and SOC on the battery capacity loss and indicate that V2G strategies seem to double the capacity loss when performed twice daily. And, if continued at the current pace, the batteries should only last only 36 months before losing 20% of their capacity compared to at least 72 months for cells not participating in V2G. This result is yet to be confirmed by further testing and by modeling.
状态：	Active
资金：	261386.00
资助组织：	Research and Innovative Technology Administration
项目负责人：	Block, David
执行机构：	University of Hawaii, Manoa
开始时间：	20131001
实际结束时间：	20180930
主题领域：	Energy；Highways；Vehicles and Equipment；I15: Environment