Development and analysis of a lithium carbon monofluoride battery-lithium ion capacitor hybrid system for high pulse-power

JOURNAL OF POWER SOURCES

卷:327

Article

Smith, Patricia H.¹  Sepe, Raymond B., Jr.²  Waterman, Kyle G.²  Myron, L. Jeff³ 

[1] Naval Surface Warfare Ctr, Carderock Div, 9500 MacArthur Blvd, West Bethesda, MD 20817 USA

[2] Electro Stand Labs, 36 Western Ind Dr, Cranston, RI 02921 USA

[3] JSR Micro, 1280 North Mathilda Ave, Sunnyvale, CA 94089 USA

关键词: Hybrid;    Lithium ion capacitor;    Li/CFxMnO2 battery;   

DOI  :  10.1016/j.jpowsour.2016.07.035

来源: Elsevier

【 摘 要 】

Although Li/CFx and Li/CFxMnO2 have two of the highest energy densities of all commercial lithium primary batteries known to date, they are typically current-limited and therefore are not used in high power applications. In this work, a Li/CFxMnO2 battery (BA-5790) was hybridized with a 1000 F lithium ion capacitor to allow its use for portable electronic devices requiring 100 W 1-min pulses. An intelligent, power-management board was developed for managing the energy flow between the components. The hybrid architecture was shown to maintain the battery current to a level that minimized energy loss and thermal stress. The performance of the Li/CFxMnO(2) hybrid was compared to the standard Li/SO2 battery (BA-5590). The hybrid was shown to deliver the same number of 100 W pulse cycles as two BA-5590 batteries, resulting in a weight savings of 30% and a volumetric reduction of 20%. For devices requiring 8 h of operational time or less, a 5-cell Li/CFxMnO2 hybrid was found to be a lighter (55%) and smaller (45%) power source than the existing two BA-5590 battery option, and a lighter (42%) and smaller (27%) option than 1 1/2 BA-5790 batteries alone. At higher power requirements (>100 W), further weight and size improvements can be expected. (C) 2016 Published by Elsevier B.V.

【 授权许可】

Free