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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

The 10th and 100th charge-discharge curves of triple-layered bipolar stacked cell at 35°C and 0.2 C.
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f4: The 10th and 100th charge-discharge curves of triple-layered bipolar stacked cell at 35°C and 0.2 C.

Mentions: Figure 3 (b) shows the charge–discharge profiles of the first and 100th cycles for the double-layered all-solid-state lithium battery at rates of 0.1 C, 0.2 C and 0.5 C. The initial capacities at 0.2 C and 0.5 C were 140 and 118 mAh/g, respectively, and plateau potentials were observed at 6.6–6.7 and 6.4–6.5 V, respectively. These results indicated that, at 0.2 C and 0.5 C, the double-layered battery showed a high cathode utilization ratio, i.e., similar to that of the single-layered battery, and showed that the device could be operated successfully without any internal short-circuiting. Figure 3 (c) shows the cycling properties and coulombic efficiencies of the double-layered all-solid-state device at 0.1 C, 0.2 C and 0.5 C. The coulombic efficiencies at 0.1 C, 0.2 C and 0.5 C were as high as 99, 98 and 99%, respectively. After the 200th cycle, the device retained 91, 89 and 99% of the capacity after the 10th cycle at each C-rate, respectively, indicating good cycling properties. Figure 4 shows the 10th and 100th charge–discharge profiles of the triple-layered all-solid-state lithium battery at rate of 0.2 C. The 10th and 100th discharge capacities were 98 and 96 mAh/g, respectively, indicating good cycle performance. Only a few studies on stacked all-solid-state devices have been reported to date and, although stacked devices using polymer electrolytes35 or Li3PO44 have been investigated, they showed low cathode utilization ratios because of their high internal electrolyte resistance. Furthermore, there have been a few studies on evaluation of cycle property to date. Thus, to the best of our knowledge, this is the first report on stacked all-solid-state lithium batteries which indicates good cycle properties, and we successfully developed the high-voltage all-solid-state lithium devices in 6 and 10 V classes.


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)

The 10th and 100th charge-discharge curves of triple-layered bipolar stacked cell at 35°C and 0.2 C.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

f4: The 10th and 100th charge-discharge curves of triple-layered bipolar stacked cell at 35°C and 0.2 C.
Mentions: Figure 3 (b) shows the charge–discharge profiles of the first and 100th cycles for the double-layered all-solid-state lithium battery at rates of 0.1 C, 0.2 C and 0.5 C. The initial capacities at 0.2 C and 0.5 C were 140 and 118 mAh/g, respectively, and plateau potentials were observed at 6.6–6.7 and 6.4–6.5 V, respectively. These results indicated that, at 0.2 C and 0.5 C, the double-layered battery showed a high cathode utilization ratio, i.e., similar to that of the single-layered battery, and showed that the device could be operated successfully without any internal short-circuiting. Figure 3 (c) shows the cycling properties and coulombic efficiencies of the double-layered all-solid-state device at 0.1 C, 0.2 C and 0.5 C. The coulombic efficiencies at 0.1 C, 0.2 C and 0.5 C were as high as 99, 98 and 99%, respectively. After the 200th cycle, the device retained 91, 89 and 99% of the capacity after the 10th cycle at each C-rate, respectively, indicating good cycling properties. Figure 4 shows the 10th and 100th charge–discharge profiles of the triple-layered all-solid-state lithium battery at rate of 0.2 C. The 10th and 100th discharge capacities were 98 and 96 mAh/g, respectively, indicating good cycle performance. Only a few studies on stacked all-solid-state devices have been reported to date and, although stacked devices using polymer electrolytes35 or Li3PO44 have been investigated, they showed low cathode utilization ratios because of their high internal electrolyte resistance. Furthermore, there have been a few studies on evaluation of cycle property to date. Thus, to the best of our knowledge, this is the first report on stacked all-solid-state lithium batteries which indicates good cycle properties, and we successfully developed the high-voltage all-solid-state lithium devices in 6 and 10 V classes.

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