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Development of bipolar all-solid-state lithium battery based on quasi-solid-state electrolyte containing tetraglyme-LiTFSA equimolar complex.

Gambe Y, Sun Y, Honma I - Sci Rep (2015)

Bottom Line: Via the successful production of double-layered and triple-layered high-voltage devices, it was confirmed that these stacked batteries operated properly without any internal short-circuits of a single cell within the package: Their plateau potentials (6.7 and 10.0 V, respectively) were two and three times that (3.4 V) of the single-layered device, respectively.Further, the double-layered device showed a capacity retention of 99% on the 200th cycle at 0.5 C, which is an indication of good cycling properties.These results suggest that bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex could readily produce a high voltage of 10 V.

View Article: PubMed Central - PubMed

Affiliation: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 KatahiraAoba-ku, Sendai, Miyagi 980-8577, Japan.

ABSTRACT
The development of high energy-density lithium-ion secondary batteries as storage batteries in vehicles is attracting increasing attention. In this study, high-voltage bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex were prepared, and the performance of the device was evaluated. Via the successful production of double-layered and triple-layered high-voltage devices, it was confirmed that these stacked batteries operated properly without any internal short-circuits of a single cell within the package: Their plateau potentials (6.7 and 10.0 V, respectively) were two and three times that (3.4 V) of the single-layered device, respectively. Further, the double-layered device showed a capacity retention of 99% on the 200th cycle at 0.5 C, which is an indication of good cycling properties. These results suggest that bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex could readily produce a high voltage of 10 V.

No MeSH data available.


Related in: MedlinePlus

(a) Structure of the device of a triple-layered bipolar stacked all-solid-state Li battery and (b) photograph of the components of a bipolar stacked cell.
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f2: (a) Structure of the device of a triple-layered bipolar stacked all-solid-state Li battery and (b) photograph of the components of a bipolar stacked cell.

Mentions: Single-layer all-solid-state battery was prepared by stacking LiFePO4 cathode composite, quasi-soild-state electrolyte sheet and a Li metal anode. As shown in Figure 2, bipolar stacked all-solid-state batteries were fabricated by layering two or three single-layer batteries and trapping them with current collectors in the same CR2032 module of a coin cell. Figure 3 (a) shows the 10th charge–discharge profiles of the single-layered (one cell unit), double-layered (two cell units) and triple-layered (three cell units) all-solid-state lithium batteries at 35°C and 0.1 C. For the single-layered battery, the 10th discharge capacity was 161 mAh/g and the cathode utilization ratio was as high as 94%. For the double-layered and triple-layered batteries, the 10th discharge capacities were 155 and 156 mAh/g, respectively, and the cathode utilization ratios were 91% and 91%, respectively. The cathode utilization ratios of the double-layered and triple-layered batteries were as high as that of the single-layered battery. The double-layered and triple-layered batteries showed plateau potentials of 6.7–6.8 and 10.0–10.2 V, respectively. These values for double-layered and triple-layered batteries were two and three times than that (3.4 V) of the single-layered battery, respectively, confirming that the electric cells within a single package did not have internal short-circuits and the stacked batteries operated successfully.


Development of bipolar all-solid-state lithium battery based on quasi-solid-state electrolyte containing tetraglyme-LiTFSA equimolar complex.

Gambe Y, Sun Y, Honma I - Sci Rep (2015)

(a) Structure of the device of a triple-layered bipolar stacked all-solid-state Li battery and (b) photograph of the components of a bipolar stacked cell.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4352844&req=5

f2: (a) Structure of the device of a triple-layered bipolar stacked all-solid-state Li battery and (b) photograph of the components of a bipolar stacked cell.
Mentions: Single-layer all-solid-state battery was prepared by stacking LiFePO4 cathode composite, quasi-soild-state electrolyte sheet and a Li metal anode. As shown in Figure 2, bipolar stacked all-solid-state batteries were fabricated by layering two or three single-layer batteries and trapping them with current collectors in the same CR2032 module of a coin cell. Figure 3 (a) shows the 10th charge–discharge profiles of the single-layered (one cell unit), double-layered (two cell units) and triple-layered (three cell units) all-solid-state lithium batteries at 35°C and 0.1 C. For the single-layered battery, the 10th discharge capacity was 161 mAh/g and the cathode utilization ratio was as high as 94%. For the double-layered and triple-layered batteries, the 10th discharge capacities were 155 and 156 mAh/g, respectively, and the cathode utilization ratios were 91% and 91%, respectively. The cathode utilization ratios of the double-layered and triple-layered batteries were as high as that of the single-layered battery. The double-layered and triple-layered batteries showed plateau potentials of 6.7–6.8 and 10.0–10.2 V, respectively. These values for double-layered and triple-layered batteries were two and three times than that (3.4 V) of the single-layered battery, respectively, confirming that the electric cells within a single package did not have internal short-circuits and the stacked batteries operated successfully.

Bottom Line: Via the successful production of double-layered and triple-layered high-voltage devices, it was confirmed that these stacked batteries operated properly without any internal short-circuits of a single cell within the package: Their plateau potentials (6.7 and 10.0 V, respectively) were two and three times that (3.4 V) of the single-layered device, respectively.Further, the double-layered device showed a capacity retention of 99% on the 200th cycle at 0.5 C, which is an indication of good cycling properties.These results suggest that bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex could readily produce a high voltage of 10 V.

View Article: PubMed Central - PubMed

Affiliation: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 KatahiraAoba-ku, Sendai, Miyagi 980-8577, Japan.

ABSTRACT
The development of high energy-density lithium-ion secondary batteries as storage batteries in vehicles is attracting increasing attention. In this study, high-voltage bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex were prepared, and the performance of the device was evaluated. Via the successful production of double-layered and triple-layered high-voltage devices, it was confirmed that these stacked batteries operated properly without any internal short-circuits of a single cell within the package: Their plateau potentials (6.7 and 10.0 V, respectively) were two and three times that (3.4 V) of the single-layered device, respectively. Further, the double-layered device showed a capacity retention of 99% on the 200th cycle at 0.5 C, which is an indication of good cycling properties. These results suggest that bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex could readily produce a high voltage of 10 V.

No MeSH data available.


Related in: MedlinePlus