Facile Fabrication of Free-Standing and Flexible Anodes Composed of Entangled N-Doped Carbon Nanotubes for Application in Lithium Ion Batteries

NANO ◽  
2020 ◽  
pp. 2150011
Author(s):  
Yihua Tang ◽  
Xinxin Wang ◽  
Jingjing Chen ◽  
Zehua Liu ◽  
Zhiyong Mao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Current Collector ◽  
Free Standing ◽  
Flexible Battery ◽  
Simple Compression ◽  
Facile Fabrication ◽  
High Flexibility

In this work, innate free-standing and flexible anode composed of entangled N-doped carbon nanotubes (CNTs) is fabricated by a facile annealing method following a simple compression without needing any tedious processing operations. The well cross-linked CNTs of the resultant free-standing anode enable robust diffusion channels for lithium ions and high flexibility. Served as the anode in lithium-ion batteries (LIBs) without the utilization of binder and current collector, the fabricated free-standing electrode can deliver a reversible area capacity of 2.14[Formula: see text]mAh[Formula: see text]cm[Formula: see text] at 1[Formula: see text]mA[Formula: see text]cm[Formula: see text] with superior cycling stability and excellent rate capability. The obtained reversible area capacity for the fabricated free-standing electrode material is much higher than that of the commercial graphite anode ([Formula: see text][Formula: see text]mAh[Formula: see text]cm[Formula: see text] at 1[Formula: see text]mA[Formula: see text]cm[Formula: see text]). Furthermore, the assembled full flexible battery utilizing the fabricated free-standing electrode also exhibits attractive performance and can substantially supply power for an electronic watch at flat and 180∘ bending positions, indicating the promising application in flexible electronic devices.

Intermetallic SnSb nanodots embedded in carbon nanotubes reinforced nanofabric electrodes with high reversibility and rate capability for flexible Li-ion batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13282-13288 ◽  
Author(s):  
Renpeng Chen ◽  
Xiaolan Xue ◽  
Yi Hu ◽  
Weihua Kong ◽  
Huinan Lin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Li Ion Batteries ◽  
Free Standing ◽  
Li Ion

Free-standing and flexible SnSb-CNTs@NCNFs electrodes are prepared and exhibit excellent electrochemical performances for lithium ion batteries.

Flexible additive-free CC@TiOxNy@SnS2 nanocomposites with excellent stability and superior rate capability for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24366-24372 ◽  
Author(s):  
Fengqi Lu ◽  
Qiang Chen ◽  
Yibin Wang ◽  
Yonghao Wu ◽  
Pengcheng Wei ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Storage Performance ◽  
Excellent Stability

The free-standing CC@TiOxNy@SnS2 nanocomposites have been synthesized via two steps hydrothermal process and exhibited excellent lithium storage performance.

Novel Cathode Electrode with Superior Rate Capability Using Perforated Aluminum Current Collector for Lithium-Ion Batteries

2020 ◽  
Vol 12 (10) ◽  
pp. 1465-1468
Author(s):  
Jin-Ju Bae ◽  
Ji-Woong Shin ◽  
Seong-Jae Kim ◽  
Tae-Whan Hong
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Performance Indicators ◽  
Rate Capability ◽  
Lithium Ion ◽  
Current Collector ◽  
Aluminum Foil ◽  
Cathode Electrode ◽  
The Relationship

Electrodes were fabricated using a perforated aluminum current collector and a standard aluminum foil, and the relationship between the electrochemical performance of the battery and the current collector was investigated. The perforated aluminum foil improved the contact characteristics between the cathode materials particles and the current collector. Also, electrochemical performance indicators such discharge capacity and rate characteristics were improved due to the increased adhesion of the electrode using the perforated current collector.

Flexible and Free-Standing Organic/Carbon Nanotubes Hybrid Films as Cathode for Rechargeable Lithium-Ion Batteries

2017 ◽  
Vol 121 (27) ◽  
pp. 14498-14506 ◽  
Author(s):  
Yong Lu ◽  
Qing Zhao ◽  
Licheng Miao ◽  
Zhanliang Tao ◽  
Zhiqiang Niu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Organic Carbon ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Hybrid Films ◽  
Free Standing

Hierarchical NiCoO2 nanosheets supported on amorphous carbon nanotubes for high-capacity lithium-ion batteries with a long cycle life

2014 ◽  
Vol 2 (32) ◽  
pp. 13069-13074 ◽  
Author(s):  
Xin Xu ◽  
Bitao Dong ◽  
Shujiang Ding ◽  
Chunhui Xiao ◽  
Demei Yu
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
Amorphous Carbon ◽  
Anode Materials ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Cycle Life ◽  
Long Cycle Life

NiCoO2 nanosheets@amorphous CNT composites show enhanced cycling performance and rate capability as anode materials for lithium-ion batteries.

scholarly journals Diffusion & concentration effect of Li/Li+ to the efficiency of LIBs

2020 ◽  
Vol 10 (2) ◽  
pp. 5076-5084
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Specific Energy ◽  
Electrical Transport ◽  
Anode Materials ◽  
Lithium Ion ◽  
Current Collector ◽  
Free Standing ◽  
Specific Energy Density ◽  
Battery Design

In this work the concentration of Li/Li+ has applied for increasing the efficiency of Lithium ion batteries. Various numbers of lithium and lithium cations have been simulated as diffused atoms in graphite as anode materials. We have found the structure of (G// (h-BN) //G) can be to improve the voltage and electrical transport in anodic sheets-based LIBs. This system could also be assembled into free-standing electrodes without any binder or current collector, which will lead to increased specific energy density for the overall battery design. Therefore, the above modification of BN-G sheet and designing of this kind structure provide strategies for improving the performance of material based anodes in LIBs.

scholarly journals Hydrophilic and Conductive Carbon Nanotube Fibers for High-Performance Lithium-Ion Batteries

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7822
Author(s):  
Nayoung Ku ◽  
Jaeyeong Cheon ◽  
Kyunbae Lee ◽  
Yeonsu Jung ◽  
Seog-Young Yoon ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Sno2 Nanoparticles ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Current Collector ◽  
Water Infiltration ◽  
Carbon Nanotube Fiber ◽  
Conductive Agent

Carbon nanotube fiber (CNTF) is a highly conductive and porous platform to grow active materials of lithium-ion batteries (LIB). Here, we prepared SnO2@CNTF based on sulfonic acid-functionalized CNTF to be used in LIB anodes without binder, conductive agent, and current collector. The SnO2 nanoparticles were grown on the CNTF in an aqueous system without a hydrothermal method. The functionalized CNTF exhibited higher conductivity and effective water infiltration compared to the raw CNTF. Due to the enhanced water infiltration, the functionalized CNTF became SnO2@CNTF with an ideal core–shell structure coated with a thin SnO2 layer. The specific capacity and rate capability of SnO2@-functionalized CNTF were superior to those of SnO2@raw CNTF. Since the SnO2@CNTF-based anode was free of a binder, conductive agent, and current collector, the specific capacity of the anode studied in this work was higher than that of conventional anodes.

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