|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM353998702 |
| 003 |
DE-627 |
| 005 |
20231226061254.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231226s2023 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/adma.202211487
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n1179.xml
|
| 035 |
|
|
|a (DE-627)NLM353998702
|
| 035 |
|
|
|a (NLM)36894169
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Dong, Jiufeng
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Scalable Polyimide-Organosilicate Hybrid Films for High-Temperature Capacitive Energy Storage
|
| 264 |
|
1 |
|c 2023
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 18.05.2023
|
| 500 |
|
|
|a Date Revised 18.05.2023
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a © 2023 Wiley-VCH GmbH.
|
| 520 |
|
|
|a High-temperature polymer dielectrics have broad application prospects in next-generation microelectronics and electrical power systems. However, the capacitive energy densities of dielectric polymers at elevated temperatures are severely limited by carrier excitation and transport. Herein, a molecular engineering strategy is presented to regulate the bulk-limited conduction in the polymer by bonding amino polyhedral oligomeric silsesquioxane (NH2 -POSS) with the chain ends of polyimide (PI). Experimental studies and density functional theory (DFT) calculations demonstrate that the terminal group NH2 -POSS with a wide-bandgap of Eg ≈ 6.6 eV increases the band energy levels of the PI and induces the formation of local deep traps in the hybrid films, which significantly restrains carrier transport. At 200 °C, the hybrid film exhibits concurrently an ultrahigh discharged energy density of 3.45 J cm-3 and a high gravimetric energy density of 2.74 J g-1 , with the charge-discharge efficiency >90%, far exceeding those achieved in the dielectric polymers and nearly all other polymer nanocomposites. Moreover, the NH2 -POSS terminated PI film exhibits excellent charge-discharge cyclability (>50000) and power density (0.39 MW cm-3 ) at 200 °C, making it a promising candidate for high-temperature high-energy-density capacitors. This work represents a novel strategy to scalable polymer dielectrics with superior capacitive performance operating in harsh environments
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a capacitors
|
| 650 |
|
4 |
|a elevated temperature
|
| 650 |
|
4 |
|a energy storage
|
| 650 |
|
4 |
|a hybrid films
|
| 650 |
|
4 |
|a molecular engineering
|
| 700 |
1 |
|
|a Li, Li
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Qiu, Peiqi
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Pan, Yupeng
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Niu, Yujuan
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Sun, Liang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Pan, Zizhao
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Liu, Yuqi
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Tan, Li
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Xu, Xinwei
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Xu, Chen
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Luo, Guangfu
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Wang, Qing
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Wang, Hong
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 20 vom: 01. Mai, Seite e2211487
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
|
| 773 |
1 |
8 |
|g volume:35
|g year:2023
|g number:20
|g day:01
|g month:05
|g pages:e2211487
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/adma.202211487
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 35
|j 2023
|e 20
|b 01
|c 05
|h e2211487
|