Micro Silicon–Graphene–Carbon Nanotube Anode for Full Cell Lithium-ion Battery

2018 ◽  
Vol 16 (1) ◽  
Author(s):  
Xianfeng Gao ◽  
Fenfen Wang ◽  
Sam Gollon ◽  
Chis Yuan
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hybrid Structure ◽  
Composite Anode ◽  
Void Space ◽  
Half Cell ◽  
Full Cell

An electrochemically stable hybrid structure material consisting of porous silicon (Si) nanoparticles, carbon nanotubes (CNTs), and reduced graphene oxide (rGO) is developed as an anode material (Si/rGO/CNT) for full cell lithium-ion batteries (LIBs). In the developed hybrid material, the rGO provides a robust matrix with sufficient void space to accommodate the volume change of Si during lithiation/delithiation and a good electric contact. CNTs act as a mechanically stable and electrically conductive support to enhance the overall mechanical strength and conductivity. The developed Si/rGO/CNT composite anode has been first tested in half cell and then in full cell lithium-ion batteries. In half cell, the composite anode shows a high reversible capacity of 1100 mAh g−1 with good capacity retention over 500 cycles when cycled at 1 A g−1. In a full cell lithium-ion battery paired up with LiNi1/3Mn1/3Co1/3O2 (NMC) cathodes, the composite anode shows a specific charge capacity of 161.4 mAh g−1 and a discharge capacity of 152.8 mAh g−1, respectively, with a Coulombic efficiency of 94.7%.

Synthesis and Electrochemical Performance of SnO2/Graphene Hybrid Anode for Lithium Ion Batteries

2013 ◽  
Vol 1540 ◽  
Author(s):  
Chia-Yi Lin ◽  
Chien-Te Hsieh ◽  
Ruey-Shin Juang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Homogeneous Distribution

ABSTRACTAn efficient microwave-assisted polyol (MP) approach is report to prepare SnO2/graphene hybrid as an anode material for lithium ion batteries. The key factor to this MP method is to start with uniform graphene oxide (GO) suspension, in which a large amount of surface oxygenate groups ensures homogeneous distribution of the SnO2 nanoparticles onto the GO sheets under the microwave irradiation. The period for the microwave heating only takes 10 min. The obtained SnO2/graphene hybrid anode possesses a reversible capacity of 967 mAh g-1 at 0.1 C and a high Coulombic efficiency of 80.5% at the first cycle. The cycling performance and the rate capability of the hybrid anode are enhanced in comparison with that of the bare graphene anode. This improvement of electrochemical performance can be attributed to the formation of a 3-dimensional framework. Accordingly, this study provides an economical MP route for the fabrication of SnO2/graphene hybrid as an anode material for high-performance Li-ion batteries.

Superior cycling performance of a novel NKVO@polypyrrole composite anode for aqueous rechargeable lithium-ion batteries

2019 ◽  
Vol 48 (33) ◽  
pp. 12591-12597 ◽  
Author(s):  
Najeeb ur Rehman Lashari ◽  
Mingshu Zhao ◽  
Qingyang Zheng ◽  
Wenyuan Duan ◽  
Xiaoping Song
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Composite Anode ◽  
Polypyrrole Composite

An aqueous rechargeable lithium-ion battery (ARLB) system has been assembled using as-prepared polypyrrole (PPy) to coat Na0.8K0.2K6O15 (NKVO) anode coupled with LiMn2O4 cathode, both immersed in an aqueous LiNO3 solution.

scholarly journals Effect of Current Rate and Prior Cycling on the Coulombic Efficiency of a Lithium-Ion Battery

Batteries ◽  
2019 ◽  
Vol 5 (3) ◽  
pp. 57 ◽  
Author(s):  
Seyed Madani ◽  
Erik Schaltz ◽  
Søren Knudsen Kær
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Degradation Behavior ◽  
Battery Cell ◽  
The Third ◽  
Capacity Loss ◽  
Battery Cells

The determination of coulombic efficiency of the lithium-ion batteries can contribute to comprehend better their degradation behavior. In this research, the coulombic efficiency and capacity loss of three lithium-ion batteries at different current rates (C) were investigated. Two new battery cells were discharged and charged at 0.4 C and 0.8 C for twenty times to monitor the variations in the aging and coulombic efficiency of the battery cell. In addition, prior cycling was applied to the third battery cell which consist of charging and discharging with 0.2 C, 0.4 C, 0.6 C, and 0.8 C current rates and each of them twenty times. The coulombic efficiency of the new battery cells was compared with the cycled one. The experiments demonstrated that approximately all the charge that was stored in the battery cell was extracted out of the battery cell, even at the bigger charging and discharging currents. The average capacity loss rates for discharge and charge during 0.8 C were approximately 0.44% and 0.45% per cycle, correspondingly.

Pre-lithiation of onion-like carbon/MoS2nano-urchin anodes for high-performance rechargeable lithium ion batteries

Nanoscale ◽  
2014 ◽  
Vol 6 (15) ◽  
pp. 8884-8890 ◽  
Author(s):  
Ye Wang ◽  
Guozhong Xing ◽  
Zhao Jun Han ◽  
Yumeng Shi ◽  
Jen It Wong ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Hybrid Structure ◽  
Initial Coulombic Efficiency

Pre-lithiation of a MoS2/OLC nano-urchin hybrid structure shows great potential in developing good performance lithium ion batteries with ultra-high initial coulombic efficiency.

Intercalation Lithium Behavior of Molybdenum Disulphide as Anode Materials for Lithium Ion Battery

2011 ◽  
Vol 335-336 ◽  
pp. 218-221
Author(s):  
Ting Kai Zhao ◽  
Guang Ming Li ◽  
Le Hao Liu ◽  
Yong Ning Liu ◽  
Tie Hu Li
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Ball Milling ◽  
Electrochemical Property ◽  
Anode Materials ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Molybdenum Disulphide ◽  
Li Ion

The electrochemical property of molybdenum disulphide (MoS2) as anode materials for lithium ion batteries was studied using two-electrode Li-ion cell. The first reversible capacity of MoS2 treated by using ball milling and doped graphite was 617mAhg-1 and 506mAhg-1 respectively. But the reversible capacity of pristine MoS2 was 661mAhg-1. The results indicated that the processes of ball milling and doped graphite of MoS2 can not widely enhance the reversible capacity.

Multi-slice nanostructured WS2@rGO with enhanced Li-ion battery performance and a comprehensive mechanistic investigation

2015 ◽  
Vol 17 (44) ◽  
pp. 29824-29833 ◽  
Author(s):  
Honglin Li ◽  
Ke Yu ◽  
Hao Fu ◽  
Bangjun Guo ◽  
Xiang Lei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hybrid Structure ◽  
Li Ion Battery ◽  
Cycle Stability ◽  
Reduced Graphene ◽  
Mechanistic Investigation ◽  
Li Ion

We studied the WS2 and reduced graphene oxide hybrid structure for use as anode material in lithium ion batteries. The composite delivered a significant enhanced reversible capacity and cycle stability compared with pristine WS2.

A 3D MoOx/carbon composite array as a binder-free anode in lithium-ion batteries

2018 ◽  
Vol 47 (42) ◽  
pp. 14897-14907 ◽  
Author(s):  
Tim Herdt ◽  
Michael Bruns ◽  
Jörg J. Schneider
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Composite Anode ◽  
Binder Free

A 3D aligned MoOx/carbon composite anode displays good cycle capacity in binder free lithium ion battery applications.

Preparation and Electrochemical Performance of SnO2/Graphite/Carbon Nanotube Composite Anode for Lithium-Ion Batteries

2010 ◽  
Vol 150-151 ◽  
pp. 1387-1390
Author(s):  
Cheng Zhao Yang ◽  
Guo Qing Zhang ◽  
Lei Zhang ◽  
Li Ma
Keyword(s):  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Anode Materials ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Pure Sno2 ◽  
Composite Anode ◽  
Carbon Nanotube Composite ◽  
Charge Discharge

A composite anode material of SnO2/graphite(GT)/carbon nanotube(CNT) for lithium-ion batteries was prepared by ball milling. It was observed that SnO2 particles were homogeneously embedded into the buffering matrix of graphite particles. This composite anode material showed an increased initial coulombic efficiencies of 56% in the first cycle, and after 25 charge–discharge cycles, a reversible capacity of 431 mAh/g was obtained, much higher than 282 mAh/g of SnO2/GT composite and 177 mAh/g of pure SnO2. The improvement in the electrochemical properties of the composite anode materials was mainly attributed to good electric conductivity of the CNT network and the excellent resiliency.

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