TY - JOUR
T1 - Vanadium solid-salt battery
T2 - Solid state with two redox couples
AU - Yamamura, Tomoo
AU - Wu, Xiongwei
AU - Ohta, Suguru
AU - Shirasaki, Kenji
AU - Sakuraba, Hiroki
AU - Satoh, Isamu
AU - Shikama, Tatsuo
N1 - Funding Information:
We thank Dr. T. Noguchi of Tohoku University; Prof. Y.P. Wu of Fudan University, Shanghai, China; Prof. K. Huang of Central South University, China; and Mr. M. Takahashi of the Experimental Facility for Alpha-Emitters from the Institute for Materials Research (IMR), Tohoku University for their helpful cooperation and discussions. We acknowledge Toyobo Co., Ltd., Japan, for supplying carbon felts and Asahi Glass Co., Ltd., Japan, for supplying membranes. This work was also performed at the International Research Center for Nuclear Materials Science, IMR, Tohoku University. This work was supported by a Grant-in-Aid for Scientific Research (B) (22360408).
PY - 2011/4/15
Y1 - 2011/4/15
N2 - We present the "vanadium solid-salt battery" (VSSB), which has high energy density, is low cost, is easily recycled, operates at ambient temperature, and has no requirement for special solvents. The VSSB contains two types of vanadium solid salts that are supported on carbon felts with a minimal amount of hydrosulfuric acid added to moisten the ion-exchange membrane. The optimized VSSB shows a cell potential of 1.34 V, excellent reproducibility for charging and discharging for nearly 100 cycles, a high energy efficiency (87%) and a high energy density (77 W h kg-1 at 5 mA cm-2 using the carbon felt XF208). The energy density is enhanced by 250-350% compared with conventional vanadium redox-flow batteries.
AB - We present the "vanadium solid-salt battery" (VSSB), which has high energy density, is low cost, is easily recycled, operates at ambient temperature, and has no requirement for special solvents. The VSSB contains two types of vanadium solid salts that are supported on carbon felts with a minimal amount of hydrosulfuric acid added to moisten the ion-exchange membrane. The optimized VSSB shows a cell potential of 1.34 V, excellent reproducibility for charging and discharging for nearly 100 cycles, a high energy efficiency (87%) and a high energy density (77 W h kg-1 at 5 mA cm-2 using the carbon felt XF208). The energy density is enhanced by 250-350% compared with conventional vanadium redox-flow batteries.
KW - High energy density
KW - Hybrid vehicles
KW - Smart grid
KW - Solid salt battery
KW - Vanadium
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U2 - 10.1016/j.jpowsour.2010.12.010
DO - 10.1016/j.jpowsour.2010.12.010
M3 - Article
AN - SCOPUS:79751525490
SN - 0378-7753
VL - 196
SP - 4003
EP - 4011
JO - Journal of Power Sources
JF - Journal of Power Sources
IS - 8
ER -
