A high-areal-capacity lithium–sulfur cathode achieved by a boron-doped carbon–sulfur aerogel with consecutive core–shell structures

2019 ◽  
Vol 55 (8) ◽  
pp. 1084-1087 ◽  
Author(s):  
Yuqing Liu ◽  
Yan Yan ◽  
Kun Li ◽  
Yang Yu ◽  
Qinghong Wang ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Cycling Stability ◽  
Shell Structures ◽  
Core Shell ◽  
Sulfur Cathode ◽  
High Specific Capacity ◽  
Boron Doped ◽  
Areal Capacity ◽  
Lithium Sulfur

A boron-doped carbon–sulfur (BCS) aerogel with consecutive “core–shell” structures achieves a high specific capacity of 1326 mA h g−1, a high areal capacity of 13.5 mA h cm−2, and a long-term cycling stability.

scholarly journals Wire-in-Wire TiO2/C Nanofibers Free-Standing Anodes for Li-Ion and K-Ion Batteries with Long Cycling Stability and High Capacity

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Die Su ◽  
Yi Pei ◽  
Li Liu ◽  
Zhixiao Liu ◽  
Junfang Liu ◽  
...  
Keyword(s):  
Critical Role ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
High Capacity ◽  
Cycling Stability ◽  
Free Standing ◽  
High Specific Capacity ◽  
Tetracarboxylic Dianhydride ◽  
Carbon Network

AbstractWearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO2/C nanofibers (TiO2 ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire-in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ultimately, TiO2 ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g−1 at 5 A g−1 after 6000 cycles in Li half-cells, and the unique structure is well-reserved after long-term cycling. Moreover, even TiO2 has a large diffusion barrier of K+, TiO2 ww/CN film demonstrates excellent performance (259 mAh g−1 at 0.05 A g−1 after 1000 cycles) in K half-cells owing to extraordinary pseudocapacitive contribution. The Li/K full cells consisted of TiO2 ww/CN film anode and LiFePO4/Perylene-3,4,9,10-tetracarboxylic dianhydride cathode possess outstanding cycling stability and demonstrate practical application from lighting at least 19 LEDs. It is, therefore, expected that this material will find broad applications in portable and wearable Li/K-ion batteries.

Flexible freestanding sandwich-structured sulfur cathode with superior performance for lithium–sulfur batteries

2014 ◽  
Vol 2 (23) ◽  
pp. 8623-8627 ◽  
Author(s):  
Jiangxuan Song ◽  
Zhaoxin Yu ◽  
Terrence Xu ◽  
Shuru Chen ◽  
Hiesang Sohn ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Superior Performance ◽  
Sulfur Cathode ◽  
Lithium Sulfur Batteries ◽  
Excellent Cycling Stability ◽  
Sulfur Cathodes ◽  
Areal Capacity ◽  
Lithium Sulfur

Flexible freestanding sandwich-structured sulfur cathodes are developed for lithium–sulfur batteries, which exhibit excellent cycling stability and rate capability. A high areal capacity of ∼4 mA h cm−2 is also demonstrated based on this new cathode configuration.

Synergistically engineered self-standing silicon/carbon composite arrays as high performance lithium battery anodes

2015 ◽  
Vol 3 (2) ◽  
pp. 494-498 ◽  
Author(s):  
Bin Wang ◽  
Tengfei Qiu ◽  
Xianglong Li ◽  
Bin Luo ◽  
Long Hao ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Battery ◽  
Specific Capacity ◽  
Carbon Composite ◽  
Cycling Stability ◽  
High Specific Capacity ◽  
Ordered Arrays ◽  
Silicon Carbon ◽  
Areal Capacity

Self-standing, ordered arrays of uniform Si/C wire-in-tube nanocomposites are developed, showing high specific capacity and extraordinary cycling stability whilst delivering competitive areal capacity.

scholarly journals Improving the cycling stability of lithium–sulfur batteries by hollow dual-shell coating

RSC Advances ◽  
2018 ◽  
Vol 8 (17) ◽  
pp. 9161-9167 ◽  
Author(s):  
Jianhua Zhang ◽  
Rujia Zou ◽  
Qian Liu ◽  
Shu-ang He ◽  
Kaibing Xu ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Cycling Stability ◽  
Template Method ◽  
High Specific Capacity ◽  
Lithium Sulfur Battery ◽  
Lithium Sulfur Batteries ◽  
Sulfur Battery ◽  
Good Cycling Stability ◽  
Lithium Sulfur

The S@MnO2@C hybrid nanospheres-based cathode was designed by a simple template method and exhibited improved lithium–sulfur battery properties, including the good cycling stability and high specific capacity.

Sulfur gradient-distributed CNF composite: a self-inhibiting cathode for binder-free lithium–sulfur batteries

2014 ◽  
Vol 50 (71) ◽  
pp. 10277-10280 ◽  
Author(s):  
Kun Fu ◽  
Yanpeng Li ◽  
Mahmut Dirican ◽  
Chen Chen ◽  
Yao Lu ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Cycling Stability ◽  
High Specific Capacity ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Lithium Sulfur

A novel sulfur gradient cathode was developed with a high specific capacity and improved cycling stability for Li–S batteries.

scholarly journals Fabrication of core–shell, yolk–shell and hollow Fe3O4@carbon microboxes for high-performance lithium-ion batteries

2017 ◽  
Vol 1 (5) ◽  
pp. 823-830 ◽  
Author(s):  
Hao Tian ◽  
Hao Liu ◽  
Tianyu Yang ◽  
Jean-Pierre Veder ◽  
Guoxiu Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Core Shell ◽  
Rate Performance ◽  
High Specific Capacity ◽  
Hollow Structures ◽  
The Core

Fe3O4@C microboxes with core–shell, yolk–shell and hollow structures were synthesized, the core–shell microboxes exhibited high specific capacity, good rate performance, and exceptional cycling stability.

Nitrogen-Doped Multi-Channel Carbon Nanofibers Incorporated with Nickel Nanoparticles as Multifunctional Modification of Separator for Ultra Stable Li-S Batteries

2021 ◽  
Author(s):  
Zhikang Wang ◽  
Guiqiang Cao ◽  
Da Bi ◽  
Tian-Xiong Tan ◽  
Qingxue Lai ◽  
...  
Keyword(s):  
Nickel Nanoparticles ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Energy Storage Device ◽  
High Specific Capacity ◽  
Nitrogen Doped ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Lithium-Sulfur batteries have been regarded as the most promising electrochemical energy storage device in consideration of their satisfactory high specific capacity and high energy density. However, the inferior conversion efficiency...

Long-Term Cycling Stability of 18650 Li-Ion Batteries Cells Using NMC811 Core@Shell Structure with Tetra-Materials

2021 ◽  
Vol MA2021-01 (4) ◽  
pp. 246-246
Author(s):  
Chirayu Khunrugsa ◽  
Poramane Chiochan ◽  
Farkfun Duriyasart ◽  
Chonticha Jangsan ◽  
Pattranit Kullawattanapokin ◽  
...  
Keyword(s):  
Shell Structure ◽  
Cycling Stability ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Core Shell Structure
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