scholarly journals A three-dimensional self-assembled SnS2-nano-dots@graphene hybrid aerogel as an efficient polysulfide reservoir for high-performance lithium–sulfur batteries

2018 ◽  
Vol 6 (17) ◽  
pp. 7659-7667 ◽  
Author(s):  
Liu Luo ◽  
Sheng-Heng Chung ◽  
Arumugam Manthiram
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
High Loading ◽  
Graphene Aerogel ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Self Assembled ◽  
Physical And Chemical ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

A free-standing self-assembled graphene aerogel embedded with SnS2nano-dots (SnS2-ND@G) is established as an efficient substrate for high-loading sulfur cathodes with synergistically physical and chemical polysulfide-trapping capability.

scholarly journals Free-standing and binder-free highly N-doped carbon/sulfur cathodes with tailorable loading for high-areal-capacity lithium–sulfur batteries

2015 ◽  
Vol 3 (41) ◽  
pp. 20482-20486 ◽  
Author(s):  
A. Schneider ◽  
C. Suchomski ◽  
H. Sommer ◽  
J. Janek ◽  
T. Brezesinski
Keyword(s):  
High Loading ◽  
Carbon Paper ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Sulfur Host ◽  
Sulfur Cathodes ◽  
Areal Capacity ◽  
Lithium Sulfur

A practical high-loading Li–S battery is realized by using free-standing and highly conductive N-doped carbon paper as sulfur host.

scholarly journals A core–shell cathode substrate for developing high-loading, high-performance lithium–sulfur batteries

2018 ◽  
Vol 6 (48) ◽  
pp. 24841-24847 ◽  
Author(s):  
Ran Yu ◽  
Sheng-Heng Chung ◽  
Chun-Hua Chen ◽  
Arumugam Manthiram
Keyword(s):  
High Performance ◽  
Active Material ◽  
Three Dimensional ◽  
High Loading ◽  
Core Shell ◽  
Porous Core ◽  
Lithium Sulfur Batteries ◽  
Cathode Substrate ◽  
Dense Shell ◽  
Lithium Sulfur

The internal porous core and external dense shell of the three-dimensional cathode substrate, respectively, accommodate and encapsulate a large amount of active material.

scholarly journals Confined Polysulfides in N-Doped 3D-CNTs Network for High Performance Lithium-Sulfur Batteries

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6131
Author(s):  
Donghuang Wang ◽  
Aijun Zhou ◽  
Zhujun Yao ◽  
Xinhui Xia ◽  
Yongqi Zhang
Keyword(s):  
Discharge Capacity ◽  
High Performance ◽  
Synergetic Effect ◽  
Three Dimensional ◽  
Utilization Efficiency ◽  
Lithium Sulfur Batteries ◽  
3D Architecture ◽  
Novel Strategy ◽  
Physical And Chemical ◽  
Lithium Sulfur

Improving the utilization efficiency of active materials and suppressing the dissolution of lithium polysulfides into the electrolyte are very critical for development of high-performance lithium-sulfur batteries. Herein, a novel strategy is proposed to construct a three-dimensional (3D) N-doped carbon nanotubes (CNTs) networks to support lithium polysulfides (3D-NCNT-Li2S6) as a binder-free cathode for high-performance lithium-sulfur batteries. The 3D N-doped CNTs networks not only provide a conductive porous 3D architecture for facilitating fast ion and electron transport but also create void spaces and porous channels for accommodating active sulfur. In addition, lithium polysulfides can be effectively confined among the networks through the chemical bond between Li and N. Owing to the synergetic effect of the physical and chemical confinement for the polysulfides dissolution, the 3D-NCNT-Li2S6 cathodes exhibit enhanced charge capacity and cyclic stability with lower polarization and faster redox reaction kinetics. With an initial discharge capacity of 924.8 mAh g−1 at 1 C, the discharge capacity can still maintain 525.1 mAh g−1 after 200 cycles, which is better than that of its counterparts.

Three-dimensional hollow reduced graphene oxide spheres with a hierarchically porous structure for high-performance lithium–sulfur batteries

2019 ◽  
Vol 6 (9) ◽  
pp. 2528-2538
Author(s):  
Mengxia Li ◽  
Ying Dai ◽  
Xinmei Pei ◽  
Wen Chen
Keyword(s):  
Graphene Oxide ◽  
Porous Structure ◽  
High Performance ◽  
Three Dimensional ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure ◽  
Reduced Graphene ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
High Sulfur Loading

A three-dimensional HrGO with a hierarchically porous structure was successfully synthesized as a sulfur-hosting material with high sulfur loading for high-performance lithium–sulfur batteries.

scholarly journals Ultradispersed titanium dioxide nanoparticles embedded in a three-dimensional graphene aerogel for high performance sulfur cathodes

RSC Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 6568-6575 ◽  
Author(s):  
Mengmeng Liu ◽  
Xiaohang Zhu ◽  
Tianye Ma ◽  
Congcong Zhang ◽  
Xiang Chen ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
High Performance ◽  
Titanium Dioxide Nanoparticles ◽  
Three Dimensional ◽  
Graphene Aerogel ◽  
Excellent Electrochemical Performance ◽  
Sulfur Cathodes

GA–TiO2 composites as a cathode material realize an excellent electrochemical performance in Li–S batteries.

Fluorinated Covalent Organic Polymers for High Performance Sulfur Cathodes in Lithium–Sulfur Batteries

2019 ◽  
Vol 31 (19) ◽  
pp. 7910-7921 ◽  
Author(s):  
Hyuksoo Shin ◽  
Doyun Kim ◽  
Hyeon Jin Kim ◽  
Jiheon Kim ◽  
Kookheon Char ◽  
...  
Keyword(s):  
High Performance ◽  
Organic Polymers ◽  
Lithium Sulfur Batteries ◽  
Sulfur Cathodes ◽  
Lithium Sulfur
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