Abstract
With an objective to elucidate life extending requirement in lithium secondary battery, discussions were given on effects of operating conditions on cycle life and integrated capacity using commercially available Li/MoS2 cells. The following matters were made clear: A trend was observed that the battery life extends when discharge depths are held shallow, but the integrated capacity remains constant in low discharge conditions (0.1 C to 0.125 C) regardless of discharge depths, and the total charge amount required for batteries discharged to various depths remained the same: the integrated discharge capacity at high-rate discharge (0.3 C) increased largely (about seven times) over the case of low-rate discharge to the same depth; and the cycle life of a lithium battery is affected not only by discharge depths, but also by charge/discharge currents and charge/discharge voltages, wherein the targeted cycle life for this cell (2,500 cycles or more) was achieved when the cell was charged and discharged at 1.5 V to 2.0 V with the discharge depth held low (30% D.O.D.) at a low-rate discharge (0.1 C) and high-rate discharge (0.3 C). 18 refs., 16 figs.
Kumai, K;
Ikeya, T;
Ishihara, K;
Iwahori, T
[1]
- Central Reserach Institute of Electric Power Industry, Tokyo (Japan)
Citation Formats
Kumai, K, Ikeya, T, Ishihara, K, and Iwahori, T.
Approach to extending the cycle life of lithium secondary battery. Effect of discharge current on cycle life and integrated capacity; Lithium niji denchi no chojumyoka hosaku. Cycle jumyo, sohoden yoryo ni oyobosu hoden denryu no eikyo.
Japan: N. p.,
1992.
Web.
Kumai, K, Ikeya, T, Ishihara, K, & Iwahori, T.
Approach to extending the cycle life of lithium secondary battery. Effect of discharge current on cycle life and integrated capacity; Lithium niji denchi no chojumyoka hosaku. Cycle jumyo, sohoden yoryo ni oyobosu hoden denryu no eikyo.
Japan.
Kumai, K, Ikeya, T, Ishihara, K, and Iwahori, T.
1992.
"Approach to extending the cycle life of lithium secondary battery. Effect of discharge current on cycle life and integrated capacity; Lithium niji denchi no chojumyoka hosaku. Cycle jumyo, sohoden yoryo ni oyobosu hoden denryu no eikyo."
Japan.
@misc{etde_10136199,
title = {Approach to extending the cycle life of lithium secondary battery. Effect of discharge current on cycle life and integrated capacity; Lithium niji denchi no chojumyoka hosaku. Cycle jumyo, sohoden yoryo ni oyobosu hoden denryu no eikyo}
author = {Kumai, K, Ikeya, T, Ishihara, K, and Iwahori, T}
abstractNote = {With an objective to elucidate life extending requirement in lithium secondary battery, discussions were given on effects of operating conditions on cycle life and integrated capacity using commercially available Li/MoS2 cells. The following matters were made clear: A trend was observed that the battery life extends when discharge depths are held shallow, but the integrated capacity remains constant in low discharge conditions (0.1 C to 0.125 C) regardless of discharge depths, and the total charge amount required for batteries discharged to various depths remained the same: the integrated discharge capacity at high-rate discharge (0.3 C) increased largely (about seven times) over the case of low-rate discharge to the same depth; and the cycle life of a lithium battery is affected not only by discharge depths, but also by charge/discharge currents and charge/discharge voltages, wherein the targeted cycle life for this cell (2,500 cycles or more) was achieved when the cell was charged and discharged at 1.5 V to 2.0 V with the discharge depth held low (30% D.O.D.) at a low-rate discharge (0.1 C) and high-rate discharge (0.3 C). 18 refs., 16 figs.}
place = {Japan}
year = {1992}
month = {May}
}
title = {Approach to extending the cycle life of lithium secondary battery. Effect of discharge current on cycle life and integrated capacity; Lithium niji denchi no chojumyoka hosaku. Cycle jumyo, sohoden yoryo ni oyobosu hoden denryu no eikyo}
author = {Kumai, K, Ikeya, T, Ishihara, K, and Iwahori, T}
abstractNote = {With an objective to elucidate life extending requirement in lithium secondary battery, discussions were given on effects of operating conditions on cycle life and integrated capacity using commercially available Li/MoS2 cells. The following matters were made clear: A trend was observed that the battery life extends when discharge depths are held shallow, but the integrated capacity remains constant in low discharge conditions (0.1 C to 0.125 C) regardless of discharge depths, and the total charge amount required for batteries discharged to various depths remained the same: the integrated discharge capacity at high-rate discharge (0.3 C) increased largely (about seven times) over the case of low-rate discharge to the same depth; and the cycle life of a lithium battery is affected not only by discharge depths, but also by charge/discharge currents and charge/discharge voltages, wherein the targeted cycle life for this cell (2,500 cycles or more) was achieved when the cell was charged and discharged at 1.5 V to 2.0 V with the discharge depth held low (30% D.O.D.) at a low-rate discharge (0.1 C) and high-rate discharge (0.3 C). 18 refs., 16 figs.}
place = {Japan}
year = {1992}
month = {May}
}