Fundamental Characteristics of Stationary Lithium-Ion Secondary Cells and a Cell-Voltage-Equalizing Circuit

Autor: Shinya Takagi, Toshio Horie, Toshio Matsushima, Seiichi Muroyama
Rok vydání: 2005
Předmět:
Zdroj: IEICE Transactions on Communications. :3436-3442
ISSN: 1745-1345
0916-8516
DOI: 10.1093/ietcom/e88-b.8.3436
Popis: 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.
Databáze: OpenAIRE