Evaluation of lead/carbon devices for utility applications : a study for the DOE Energy Storage Program.

Walmet, Paula S. (MeadWestvaco Corporation,North Charleston, SC)

关键词: ACTIVATED CARBON;    CAPACITORS;    CARBON;    ELECTRODES;    ENERGY STORAGE;    EVALUATION;    GRAPHITE;    LEAD-ACID BATTERIES;    PERFORMANCE Capacitors-Design and construction.;    Storage batteries-Materials;    Congresses.;    Lead Acid Batteries;    Energy storage.;    Storage batteries.;   

DOI  :  10.2172/973661
RP-ID  :  SAND2009-5537
PID  :  OSTI ID: 973661
Others  :  TRN: US201007%%283

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This report describes the results of a three-phase project that evaluated lead-based energy storage technologies for utility-scale applications and developed carbon materials to improve the performance of lead-based energy storage technologies. In Phase I, lead/carbon asymmetric capacitors were compared to other technologies that used the same or similar materials. At the end of Phase I (in 2005) it was found that lead/carbon asymmetric capacitors were not yet fully developed and optimized (cost/performance) to be a viable option for utility-scale applications. It was, however, determined that adding carbon to the negative electrode of a standard lead-acid battery showed promise for performance improvements that could be beneficial for use in utility-scale applications. In Phase II various carbon types were developed and evaluated in lead-acid batteries. Overall it was found that mesoporous activated carbon at low loadings and graphite at high loadings gave the best cycle performance in shallow PSoC cycling. Phase III studied cost/performance benefits for a specific utility application (frequency regulation) and the full details of this analysis are included as an appendix to this report.