Carbon Quantum Dots and Their Derivative 3D Porous Carbon Frameworks for Sodium-Ion Batteries with Ultralong Cycle Life

2015 ◽  
Vol 27 (47) ◽  
pp. 7861-7866 ◽  
Author(s):  
Hongshuai Hou ◽  
Craig E. Banks ◽  
Mingjun Jing ◽  
Yan Zhang ◽  
Xiaobo Ji
Keyword(s):  
Quantum Dots ◽  
Porous Carbon ◽  
Carbon Quantum Dots ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Batteries

scholarly journals Flexible sodium-ion batteries using electrodes from Samanea saman tree leaf-derived carbon quantum dots decorated with SnO2 and NaVO3

Clean Energy ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 354-374
Author(s):  
Baskar Thangaraj ◽  
Surawut Chuangchote ◽  
Nutthapon Wongyao ◽  
Pravin Raj Solomon ◽  
Kamonchanok Roongraung ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Discharge Capacity ◽  
Carbon Quantum Dots ◽  
Sodium Ion ◽  
Excitation Wavelength ◽  
Sodium Ion Batteries ◽  
Specific Discharge ◽  
Samanea Saman ◽  
Discharge Capacities

Abstract Carbonaceous materials with large interlayer spacing and disordered structure are considered suitable as electrodes in sodium-ion batteries so as to overcome the problem encountered in conventional electrodes. In this study, carbon quantum dots (CQDs) decorated with SnO2 and NaVO3 are used as electrodes in the fabrication of flexible Na-ion batteries. CQDs are prepared from dead leaves of the Samanea saman tree through alkaline-peroxide treatment and hydrothermal carbonization. As-prepared CQDs exhibit a quantum yield of 21.03% at an excitation wavelength of 360 nm. Various separators such as indium-doped tin oxide/polyoxyethylene tridecyl ether (ITO/PTE), rice paper (RP), silicone with three big holes (SIL BH), silicone with many small holes (SIL SH) and cellulose paper (CP) have been tried in flexible Na-ion batteries. SIL SH achieved higher specific capacitance (881 F g–1) than other separators due to the function of many small holes on the surface of the silicone. The SIL SH separator delivered higher discharge capacities of 141 and 114 mC g–1 at 1.5 and 2.5 V than SIL BH. The RP separator delivered specific discharge capacities of 1087 and 347 mC g–1 in the 1st and 50th cycles, respectively, at 1 V. The RP separator delivered a high initial specific discharge capacity of 698 mC g–1 at 2 V and maintained a good discharge capacity of 222 mC g–1 in the 50th cycle. As compared to RP, SIL SH delivered high specific discharge capacity of 4246 in 1st cycle at 2 V but maintained a capacity of 71 mC g–1 in the 50th cycle. This study reveals the scope of developing flexible Na-ion batteries with high capacity and cyclability using carbonaceous materials derived from the leaves of the S. saman tree. Carbon quantum dots (CQDs)-decorated with SnO2 and NaVO3 are used as electrodes in the fabrication of flexible Na-ion batteries. CQDs exhibit a quantum yield of 21% at the excitation wavelength of 360 nm. The electrochemical performances of fabricated batteries are investigated by cyclic voltammetry.

Carbon quantum dots from glucose oxidation as a highly competent anode material for lithium and sodium-ion batteries

2019 ◽  
Vol 297 ◽  
pp. 250-257 ◽  
Author(s):  
Mohsin Javed ◽  
Ahmad Nauman Shah Saqib ◽  
Ata-ur-Rehman ◽  
Basit Ali ◽  
Muhammad Faizan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Anode Material ◽  
Glucose Oxidation ◽  
Carbon Quantum Dots ◽  
Sodium Ion ◽  
Sodium Ion Batteries

Hollow Ni–NiO nanoparticles embedded in porous carbon nanosheets as a hybrid anode for sodium-ion batteries with an ultra-long cycle life

2018 ◽  
Vol 6 (26) ◽  
pp. 12663-12671 ◽  
Author(s):  
Chun Cheng Yang ◽  
Dong Mei Zhang ◽  
Li Du ◽  
Qing Jiang
Keyword(s):  
Porous Carbon ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nio Nanoparticles ◽  
Carbon Nanosheets ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Cycling Life

The hybrid electrode of hollow Ni–NiO nanoparticles in porous carbon nanosheets shows an ultra-long cycling life in sodium-ion batteries.

Na3V2(PO4)3@nitrogen,sulfur-codoped 3D porous carbon enabling ultra-long cycle life sodium-ion batteries

Nanoscale ◽  
2017 ◽  
Vol 9 (18) ◽  
pp. 6048-6055 ◽  
Author(s):  
Yu Jiang ◽  
Haochuan Zhang ◽  
Hai Yang ◽  
Zhenyu Qi ◽  
Yan Yu
Keyword(s):  
Porous Carbon ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Long Cycle ◽  
Long Cycle Life

Carbon-coated Na3V2(PO4)2F3 nanoparticles embedded in a mesoporous carbon matrix as a potential cathode material for sodium-ion batteries with superior rate capability and long-term cycle life

2015 ◽  
Vol 3 (43) ◽  
pp. 21478-21485 ◽  
Author(s):  
Qiang Liu ◽  
Dongxue Wang ◽  
Xu Yang ◽  
Nan Chen ◽  
Chunzhong Wang ◽  
...  
Keyword(s):  
Cathode Material ◽  
Mesoporous Carbon ◽  
Rate Capability ◽  
Carbon Matrix ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Hrtem Image ◽  
Carbon Coated

The HRTEM image and long-term cycle life with capacity retentions of 70% and 50% over 1000 and 3000 cycles at 10C and 30C rates, respectively.

N/S Co-Doped 3 D Porous Carbon Nanosheet Networks Enhancing Anode Performance of Sodium-Ion Batteries

2017 ◽  
Vol 23 (57) ◽  
pp. 14261-14266 ◽  
Author(s):  
Lei Zou ◽  
Yanqing Lai ◽  
Hongxing Hu ◽  
Mengran Wang ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Co Doped

Hysteresis Abated P2-type NaCoO2 Cathode Reveals Highly Reversible Multiple Phase Transitions for High-Rate Sodium-ion Batteries

2021 ◽  
Author(s):  
VENKATA RAMI REDDY BODDU ◽  
Manikandan Palanisamy ◽  
Lichchhavi Sinha ◽  
Subhash Yadav ◽  
Vilas Pol ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Discharge Rate ◽  
Cycle Life ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Long Cycle Life ◽  
Multiple Phase ◽  
Ion Intercalation ◽  
Charge Discharge

Despite multiple phase transitions occur during Na+ ion intercalation and deintercalation, enhanced charge-discharge rate, and long cycle life are achieved to hexagonal shaped P2-type NaCoO2 cathode for sodium-ion batteries (SIBs)....

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