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Fundamental Characteristics of Stationary Lithium-Ion Secondary Cells and a Cell-Voltage-Equalizing Circuit Toshio MATSUSHIMA Shinya TAKAGI Seiichi MUROYAMA Toshio HORIE Publication IEICE TRANSACTIONS on Communications Vol.E88-B No.8 pp.3436-3442 Publication Date: 2005/08/01 Online ISSN: DOI: 10.1093/ietcom/e88-b.8.3436 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Energy in Electronics Communications Keyword: lithium-ion cell, discharge, change cell-voltage-equalizing circuit, assembled cell, Full Text: PDF(1.3MB)>>
Summary: This paper describes the characteristics of lithium-ion cells developed for stationary use, as in the case of stand-by sources in power systems. The effect of a cell-voltage-equalizing circuit developed for batteries of cells is also demonstrated. The tested lithium-ion cells were suitable to be charged by the constant-current, constant-voltage (CCCV) method and could be charged efficiently over a wide range of temperatures. They also showed good discharge performance with little dependence on the discharge current and temperature. Total capacity reduction of over 60% can be expected in batteries of lithium-ion cells. The cell-voltage-equalizing circuit was shown to be useful and necessary for batteries of lithium-ion cells in order to suppress deviations in the cell voltage and capacity loss. | |||||
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