Graphene Oxide Gel-Derived, Free-Standing, Hierarchically Porous Carbon for High-Capacity and High-Rate Rechargeable Li-O2 Batteries

2012 ◽  
Vol 22 (17) ◽  
pp. 3699-3705 ◽  
Author(s):  
Zhong-Li Wang ◽  
Dan Xu ◽  
Ji-Jing Xu ◽  
Lei-Lei Zhang ◽  
Xin-Bo Zhang
Keyword(s):  
Graphene Oxide ◽  
Porous Carbon ◽  
High Capacity ◽  
High Rate ◽  
Free Standing ◽  
Hierarchically Porous

Free-standing graphene-based porous carbon films with three-dimensional hierarchical architecture for advanced flexible Li–sulfur batteries

2015 ◽  
Vol 3 (18) ◽  
pp. 9438-9445 ◽  
Author(s):  
Chao Wu ◽  
Lijun Fu ◽  
Joachim Maier ◽  
Yan Yu
Keyword(s):  
Porous Carbon ◽  
Three Dimensional ◽  
Carbon Films ◽  
Hierarchical Architecture ◽  
Free Standing ◽  
Hierarchically Porous

A novel free-standing cathode film consisting of hierarchically porous carbon-encapsulated sulfur has been designed and fabricated for Li–sulfur batteries.

Blood-Capillary-Inspired, Free-Standing, Flexible, and Low-Cost Super-Hydrophobic N-CNTs@SS Cathodes for High-Capacity, High-Rate, and Stable Li-Air Batteries

2018 ◽  
Vol 8 (12) ◽  
pp. 1702242 ◽  
Author(s):  
Xiao-Yang Yang ◽  
Ji-Jing Xu ◽  
Zhi-Wen Chang ◽  
Di Bao ◽  
Yan-Bin Yin ◽  
...  
Keyword(s):  
Low Cost ◽  
High Capacity ◽  
High Rate ◽  
Blood Capillary ◽  
Free Standing

Hierarchically porous carbon architectures embedded with hollow nanocapsules for high-performance lithium storage

2015 ◽  
Vol 3 (9) ◽  
pp. 5054-5059 ◽  
Author(s):  
Chang Yu ◽  
Meng Chen ◽  
Xiaoju Li ◽  
Changtai Zhao ◽  
Lianlong He ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Carbon Sphere ◽  
High Rate Capability ◽  
Lithium Storage ◽  
Hierarchically Porous

Hierarchically porous carbon architectures composed of a micro-sized porous carbon sphere matrix embedded with hollow nanocapsules are configured, demonstrating a large capacity and an ultra-high rate capability in lithium ion batteries.

scholarly journals MXene-Derived Defect-Rich TiO2@rGO as High-Rate Anodes for Full Na Ion Batteries and Capacitors

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Yongzheng Fang ◽  
Yingying Zhang ◽  
Chenxu Miao ◽  
Kai Zhu ◽  
Yong Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrode Materials ◽  
Low Cost ◽  
Parent Phase ◽  
High Capacity ◽  
Cycling Performance ◽  
Maximum Energy ◽  
Sodium Ion ◽  
High Rate ◽  
Energy Storage Devices

AbstractSodium ion batteries and capacitors have demonstrated their potential applications for next-generation low-cost energy storage devices. These devices's rate ability is determined by the fast sodium ion storage behavior in electrode materials. Herein, a defective TiO2@reduced graphene oxide (M-TiO2@rGO) self-supporting foam electrode is constructed via a facile MXene decomposition and graphene oxide self-assembling process. The employment of the MXene parent phase exhibits distinctive advantages, enabling defect engineering, nanoengineering, and fluorine-doped metal oxides. As a result, the M-TiO2@rGO electrode shows a pseudocapacitance-dominated hybrid sodium storage mechanism. The pseudocapacitance-dominated process leads to high capacity, remarkable rate ability, and superior cycling performance. Significantly, an M-TiO2@rGO//Na3V2(PO4)3 sodium full cell and an M-TiO2@rGO//HPAC sodium ion capacitor are fabricated to demonstrate the promising application of M-TiO2@rGO. The sodium ion battery presents a capacity of 177.1 mAh g−1 at 500 mA g−1 and capacity retention of 74% after 200 cycles. The sodium ion capacitor delivers a maximum energy density of 101.2 Wh kg−1 and a maximum power density of 10,103.7 W kg−1. At 1.0 A g−1, it displays an energy retention of 84.7% after 10,000 cycles.

Hierarchically Porous N‐Doped Carbon Fibers as a Free‐Standing Anode for High‐Capacity Potassium‐Based Dual‐Ion Battery

2019 ◽  
Vol 9 (37) ◽  
pp. 1901663 ◽  
Author(s):  
Meng Zhang ◽  
Muhammad Shoaib ◽  
Huilong Fei ◽  
Tao Wang ◽  
Jiang Zhong ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
High Capacity ◽  
Free Standing ◽  
Hierarchically Porous
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