Matches in SemOpenAlex for { <https://semopenalex.org/work/W3182047752> ?p ?o ?g. }
- W3182047752 abstract "Abstract Symmetric aqueous microsupercapacitors (MSCs) generally show a low working voltage ( ≤ 1 V) and narrow operating temperature window in the vicinity of 25 ° C due to the poor temperature tolerance and instability of conventional aqueous electrolytes under high voltage. It is challenging to develop MSCs that can offer a high‐voltage output (>2 V) under complex ambient temperature. In this work, a symmetric MSC is fabricated by using the anti‐freezing and heat‐tolerant aqueous polyacrylamide polyelectrolyte (HVTT‐PAM‐10.5) and carbon nanotube microelectrodes, which achieves a record high output voltage of 2.3 V and the widest operating temperature window of − 40 to 100 ° C among the aqueous MSCs reported previously. It can deliver an ultrahigh areal energy density of above 4.9 μ Wh cm −2 at temperatures from − 40 to 100 ° C, outperforming the previous carbon‐based MSCs with aqueous electrolytes at room temperature. Additionally, even after 324 000 cycles at − 40 ° C and 10 000 cycles at 100 ° C, the MSC still retains the high capacitance retention of 92.6% and 90.4%, respectively. Impressively, the HVTT‐PAM‐10.5 polyelectrolyte can also be paired with other electrode materials such as CNT/polyaniline to obtain the highest energy density of 48.6 μ Wh cm −2 among all symmetric/asymmetric MSCs with aqueous electrolytes." @default.
- W3182047752 created "2021-07-19" @default.
- W3182047752 creator A5007000283 @default.
- W3182047752 creator A5013181595 @default.
- W3182047752 creator A5015625878 @default.
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- W3182047752 creator A5052340237 @default.
- W3182047752 creator A5053885185 @default.
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- W3182047752 creator A5082256458 @default.
- W3182047752 creator A5085911348 @default.
- W3182047752 creator A5090166634 @default.
- W3182047752 date "2021-07-14" @default.
- W3182047752 modified "2023-10-14" @default.
- W3182047752 title "An Aqueous Anti‐Freezing and Heat‐Tolerant Symmetric Microsupercapacitor with 2.3 V Output Voltage" @default.
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