Advanced Technology Development Program for Lithium-Ion Batteries: Gen 2 GDR Performance Evaluation Report.

Christophersen, J. P. ; Ho, C. D. ; Henriksen, G. L. ; Howell, D.

Technical Information Center Oak Ridge Tennessee

关键词: Lithium batteries;    Acceleration;    Capacity;    Matrices;    Electric batteries;   

RP-ID  :  DE2008911665

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The Advanced Technology Development Program has completed the performance evaluation of the second generation of lithium-ion cells (i.e., Gen 2 cells). This report documents the testing and analysis of the Gen 2 GDR cells, which were used to learn and debug the newly developed Technology Life Verification Test Manual. The purpose of the manual is to project a 15-year, 150,000 mile battery life capability with a 90% confidence interval using predictive models and short-term testing. The GDR cells were divided into two different matrices. The core-life test matrix consisted of calendar- and cycle-life cells with various changes to the four major acceleration factors (temperature, state-of-charge, throughput, and power rating). The supplemental-life test matrix consisted of cells subjected either to a path dependence study, or a comparison between the standard hybrid pulse power characterization test and the newly-developed minimum pulse power characterization test. Resistance and capacity results are reported.