scholarly journals Novel synthetic approach for 1,4-dihydroxyanthraquinone and the development of its lithiated salts as anode materials for aqueous rechargeable lithium-ion batteries

2015 ◽  
Vol 39 (11) ◽  
pp. 8534-8544 ◽  
Author(s):  
Vijeth Rajshekar Shetty ◽  
Suresh Shivappa Gurukar ◽  
Ramaiah Marriappa ◽  
Mahadevan Malavalli Kittappa ◽  
Doddahalli Hanumantharayudu Nagaraju
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Lithium Ion ◽  
Synthetic Approach ◽  
Electroactive Species

An appreciable average voltage and discharge capacity of an aqueous cell was achieved by a lithiated organic electroactive species called quinizarin.

Can the Calcined Weathered Stones be Employed as Anode Materials for Lithium Ion Batteries?

2017 ◽  
Vol 20 (4) ◽  
pp. 223-230 ◽  
Author(s):  
Keqiang Ding ◽  
Binjuan Wei ◽  
Yan Zhang ◽  
Chenxue Li ◽  
Xiaomi Shi ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Large Scale ◽  
Retention Rate ◽  
Lithium Ion ◽  
Scale Production ◽  
Sem Images ◽  
Large Scale Production ◽  
Main Components

A novel finding, that the calcined weathered stones (denoted as CWS) can be employed as the anode materials for lithium ion batteries (LIBs), is reported for the first time in this work. Under the air conditions, the weathered stones were respectively calcined at 400ºC (sample a), 600ºC (sample b) and 800ºC (sample c) for 2 h, with an intention to examine the influence of the calcination temperature on the physicochemical properties of the resultant materials. XRD results indicated that the main components of all the final products were SiO2. And the SEM images demonstrated that all the as-prepared samples were irregular and larger particles with no evident crystal structure. The results of the electrochemical measurements revealed that the initial discharge capacity of sample b was about 104 mAh g-1 at the current density of 100 mA g-1, which was remarkably larger than that of the employed pure SiO2 (50 mAh g-1). Interestingly, after 20 cycles, the discharge capacity of sample b was still maintained as high as 70 mAh g-1, along with a capacity retention rate of about 70%. Although the discharge capacity reported here was lower as compared to the currently reported anode materials, this novel finding was very meaningful to the large scale production of anode materials, mainly due to the rather lower cost and abundant resources as well as the simple preparation process.

Structure and electrochemical properties of Sm-doped Li4Ti5O12 as anode material for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15492-15500 ◽  
Author(s):  
Zhanyu Li ◽  
Jianling Li ◽  
Yuguang Zhao ◽  
Kai Yang ◽  
Fei Gao ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance

Sm doping has a great impact on discharge capacity, rate capability and cycling performance of LTO anode materials for lithium-ion batteries.

FACILE SYNTHESIS OF MAGNETITE/CARBON NANOTUBES NANOCOMPOSITES WITH STABLE AND RATE CAPABILITY AS ANODE MATERIALS FOR LITHIUM-ION BATTERIES

2013 ◽  
Vol 06 (06) ◽  
pp. 1350054 ◽  
Author(s):  
CHAO WU ◽  
QUANCHAO ZHUANG ◽  
YONGXIN WU ◽  
LEILEI TIAN ◽  
XINXI ZHANG ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Galvanostatic Charge ◽  
Facile Synthesis ◽  
Facile Hydrothermal Method ◽  
Initial Discharge

Fe 3 O 4/carbon nanotubes (CNTs) nanocomposites are successfully prepared by a facile hydrothermal method, without any reducing agents. SEM shows that the CNTs are dispersed well in the Fe 3 O 4 nanoparticles of 50 to 100 nm in size. The electrochemical properties of the prepared nanocomposites as anode materials are further evaluated by galvanostatic charge/discharge cycling and cyclic voltammetry (CV). Results show that the nanocomposites display an initial discharge capacity of 1421 mAh⋅g-1 and maintain 1100 mAh⋅g-1 up to 40 cycles in the voltage of 0.005–3.0 V at 100 mAh⋅g-1. When the current density is to 0.5, 1, 2, 5 and 1 C, the nanocomposites still exhibit discharge capacity of 1615.8, 817.0, 585.0, 391.0 and (585.0 ± 45.0) mAh⋅g-1, respectively, which are potential for anode materials in lithium-ion batteries.

Na+ and Zr4+ co-doped Li4Ti5O12 as anode materials with superior electrochemical performance for lithium ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90455-90461 ◽  
Author(s):  
Peng Lu ◽  
Xiaobing Huang ◽  
Yurong Ren ◽  
Jianning Ding ◽  
Haiyan Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Solid State Reaction ◽  
Anode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Co Doped

Na+ and Zr4+ co-doped lithium titanates were successfully synthesized via a solid-state reaction in air. Particularly, Li3.97Na0.03Ti4.97Zr0.03O12 exhibits the best rate capability. Even at 20C, it delivers a discharge capacity of 140 mA h g−1.

scholarly journals Porous Fe2O3 nanorod-decorated hollow carbon nanofibers for high-rate lithium storage

2021 ◽  
Author(s):  
Zhiwen Long ◽  
Luhan Yuan ◽  
Chu Shi ◽  
Caiqin Wu ◽  
Hui Qiao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Volume Expansion ◽  
Anode Materials ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Rate Performance ◽  
Current Densities ◽  
Hollow Carbon ◽  
Charge Discharge

AbstractTransition metal oxides (TMOs) are considered as promising anode materials for lithium-ion batteries in comparison with conventional graphite anode. However, TMO anodes suffer severe volume expansion during charge/discharge process. In this respect, a porous Fe2O3 nanorod-decorated hollow carbon nanofiber (HNF) anode is designed via a combined electrospinning and hydrothermal method followed by proper annealing. FeOOH/PAN was prepared as precursors and sacrificial templates, and porous hollow Fe2O3@carbon nanofiber (HNF-450) composite is formed at 450 °C in air. As anode materials for lithium-ion batteries, HNF-450 exhibits outstanding rate performance and cycling stability with a reversible discharge capacity of 1398 mAh g−1 after 100 cycles at a current density of 100 mA g−1. Specific capacities 1682, 1515, 1293, 987, and 687 mAh g−1 of HNF-450 are achieved at multiple current densities of 200, 300, 500, 1000, and 2000 mA g−1, respectively. When coupled with commercial LiCoO2 cathode, the full cell delivered an outstanding initial charge/discharge capacity of 614/437 mAh g−1 and stability at different current densities. The improved electrochemical performance is mainly attributed to the free space provided by the unique porous hollow structure, which effectively alleviates the volume expansion and facilitates the exposure of more active sites during the lithiation/delithiation process. Graphical abstract Porous Fe2O3 nanorod-decorated hollow carbon nanofibers exhibit outstanding rate performance and cycling stability with a high reversible discharge capacity.

Super high-rate, long cycle life of europium-modified, carbon-coated, hierarchical mesoporous lithium-titanate anode materials for lithium ion batteries

2016 ◽  
Vol 4 (25) ◽  
pp. 9949-9957 ◽  
Author(s):  
Yanjun Cai ◽  
Yudai Huang ◽  
Wei Jia ◽  
Xingchao Wang ◽  
Yong Guo ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Lithium Ion ◽  
Lithium Titanate ◽  
High Rate ◽  
Precipitation Method ◽  
Long Cycle Life ◽  
Carbon Coated ◽  
Co Precipitation

Li4−x/2Ti5−x/2EuxO12@C (x = 0.004) was prepared via the co-precipitation method. When cycled at 100 C, the discharge capacity stayed at 92.1 mA h g−1.

scholarly journals Cu&Si Core–Shell Nanowire Thin Film as High-Performance Anode Materials for Lithium Ion Batteries

2021 ◽  
Vol 11 (10) ◽  
pp. 4521
Author(s):  
Lifeng Zhang ◽  
Linchao Zhang ◽  
Zhuoming Xie ◽  
Junfeng Yang
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Core Shell ◽  
Si Nanowires ◽  
Cu Nanowires

Cu@Si core–shell nanowire thin films with a Cu3Si interface between the Cu and Si were synthesized by slurry casting and subsequent magnetron sputtering and investigated as anode materials for lithium ion batteries. In this constructed core–shell architecture, the Cu nanowires were connected to each other or to the Cu foil, forming a three-dimensional electron-conductive network and as mechanical support for the Si during cycling. Meanwhile, the Cu3Si layer can enhance the interface adhesion strength of the Cu core and Si shell; a large amount of void spaces between the Cu@Si nanowires could accommodate the lithiation-induced volume expansion and facilitate electrolyte impregnation. As a consequence, this electrode exhibits impressive electrochemical properties: the initial discharge capacity and initial coulombic efficiency is 3193 mAh/g and 87%, respectively. After 500 cycles, the discharge capacity is about 948 mAh/g, three times that of graphite, corresponding to an average capacity fading rate of 0.2% per cycle.

A critical SiOx layer on Si porous structures to construct highly-reversible anode materials for lithium-ion batteries

2017 ◽  
Vol 53 (45) ◽  
pp. 6101-6104 ◽  
Author(s):  
Yifan Chen ◽  
Yangfan Lin ◽  
Ning Du ◽  
Yaguang Zhang ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Porous Structure ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Coating Layer ◽  
Lithium Ion ◽  
Porous Structures ◽  
Long Cycles

A novel Si/SiOx porous structure with an ∼9 nm SiOx coating layer demonstrates a highly reversible discharge capacity of over 915 mA h g−1 after 500 long cycles.

Al-Doped Fe2O3 nanoparticles: advanced anode materials for high capacity lithium ion batteries

2021 ◽  
Vol 50 (15) ◽  
pp. 5115-5119
Author(s):  
Yongqing Yuan ◽  
Shijie Liang ◽  
Weipei Liu ◽  
Qiong Zhao ◽  
Puguang Peng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Electrochemical Behavior ◽  
Anode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Fe2o3 Nanoparticles ◽  
Initial Discharge Capacity ◽  
Initial Discharge ◽  
The Stability

We successfully synthesized Al-Fe2O3 anode with high initial discharge capacity of 1210 mAh g−1 under 0.5 A g−1 and maintained around 900 mAh g−1 during the cycles. The doping of Al assists in the stability and electrochemical behavior of the whole electrode.

scholarly journals Heteroatom-doped core/shell carbonaceous framework materials: synthesis, characterization and electrochemical properties

2019 ◽  
Vol 43 (14) ◽  
pp. 5632-5641 ◽  
Author(s):  
Yutao Zhou ◽  
Qianye Huang ◽  
Chee Tong John Low ◽  
Richard I. Walton ◽  
Tony McNally ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Lithium Ion ◽  
Core Shell ◽  
Materials Synthesis ◽  
Framework Materials ◽  
Excellent Cycling Stability ◽  
Charge Discharge

Multiple heteroatom-doped core/shell carbonaceous framework materials showed a rapid charge–discharge capacity and excellent cycling stability, demonstrating great potential for anode materials for lithium ion batteries.

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