Development and Characterization of Nanostructure Tin alloys as Anodes in Lithium - Ion Batteries

1999 ◽  
Vol 575 ◽  
Author(s):  
E. Peled ◽  
A. Ulus ◽  
Y. Rosenberga
Keyword(s):  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Atomic Ratio ◽  
Cycle Life ◽  
Limiting Current ◽  
Irreversible Capacity ◽  
Antimony Content ◽  
Tin Alloys

ABSTRACTSeveral tin-antimony and tin-zinc nanostructure alloys were electroplated from an acid bath, on a copper foil, at current densities higher by an order of magnitude than the limiting current density. They have been characterized as potential high-capacity anodes for lithium-ion battery applications. SEM micrographs of the tin-based alloys reveal nanosize particles, which aggregate into larger agglomerates of fractal shapes. On the nanoscale, the zinc-tin alloys have house-of-cards or honeycomb morphology. The composition of one series of tin based alloys was Sn:Sb (atomic ratio) 1.4:1 to 9:1; another alloy consisted of Sn:Sb:Cu in the ratio 34:10:4. All contained about 5% carbon and about 20% oxygen. The zinc-rich tin alloys contain at least 80 atomic percent zinc (their electrochemical characterization will be reported elsewhere). Tin-based alloys with low antimony content, have high reversible capacity (up to 700mAh/g), low irreversible capacity (about 24%), a better rate capability, and a lower average working potential vs. Li. On the other hand, alloys rich in antimony have a longer cycle life, but poor rate capability and a high average working potential vs. Li. The addition of copper to the tin-based alloys improved cycle life and slightly reduced irreversible capacity.

In situ synthesis of GeO2/reduced graphene oxide composite on Ni foam substrate as a binder-free anode for high-capacity lithium-ion batteries

2015 ◽  
Vol 3 (4) ◽  
pp. 1619-1623 ◽  
Author(s):  
Heyuan Qiu ◽  
Lingxing Zeng ◽  
Tongbin Lan ◽  
Xiaokun Ding ◽  
Mingdeng Wei
Keyword(s):  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Dip Coating ◽  
Reduced Graphene ◽  
Binder Free ◽  
Hydrolysis Of

The GeO2/RGO electrode is successfully fabricated via a facile dip-coating route cooperated with in situ hydrolysis of GeCl4 and used directly as a binder-free anode for LIBs. This material exhibited high reversible capacity, good cycling performance and excellent rate capability.

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 Three-Dimensional Carbon-Coated LiFePO4 Cathode with Improved Li-Ion Battery Performance

Coatings ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1137
Author(s):  
Can Wang ◽  
Xunlong Yuan ◽  
Huiyun Tan ◽  
Shuofeng Jian ◽  
Ziting Ma ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Three Dimensional ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Economic Benefits ◽  
Synthesis Process ◽  
Carbon Coated

LiFePO4 (LFPO)has great potential as the cathode material for lithium-ion batteries; it has a high theoretical capacity (170 m·A·h·g−1), high safety, low toxicity and good economic benefits. However, low conductivity and a low diffusion rate inhibit its future development. To overcome these weaknesses, three-dimensional carbon-coated LiFePO4 that incorporates a high capacity, superior conductivity and low volume expansion enables faster electron transport channels. The use of Cetyltrimethyl Ammonium Bromid (CTAB) modification only requires a simple water bath and sintering, without the need to add a carbon source in the LFPO synthesis process. In this way, the electrode shows excellent reversible capacity, as high as 159.8 m·A·h·g−1 at 2 C, superior rate capability with 97.3 m·A·h·g−1at 5 C and good cycling ability, preserving ~84.2% capacity after 500 cycles. By increasing the ion transport rate and enhancing the structural stability of LFPO nanoparticles, the LFPO-positive electrode achieves excellent initial capacity and cycle life through cost-effective and easy-to-implement carbon coating. This simple three-dimensional carbon-coated LiFePO4 provides a new and simple idea for obtaining comprehensive and high-performance electrode materials in the field of lithium cathode materials.

Electrochemical Properties of Micro-Sized Bismuth Anode for Sodium Ion Batteries

2020 ◽  
Vol 12 (9) ◽  
pp. 1429-1432
Author(s):  
Seunghwan Cha ◽  
Changhyeon Kim ◽  
Huihun Kim ◽  
Gyu-Bong Cho ◽  
Kwon-Koo Cho ◽  
...  
Keyword(s):  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycle Life ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Long Cycle ◽  
Long Cycle Life ◽  
High Reversible Capacity

Recently, sodium ion batteries have attracted considerable interest for large-scale electric energy storage as an alternative to lithium ion batteries. However, the development of anode materials with long cycle life, high rate, and high reversible capacity is necessary for the advancement of sodium ion batteries. Bi anode is a promising candidate for sodium ion batteries due to its high theoretical capacity (385 mAh g–1 or 3800 mAh l–1) and high electrical conductivity (7.7 × 105 S m –1). Herein, we report the preparation of Bi anode using micro-sized commercial Bi particles. DME-based electrolyte was used, which is well known for its high ionic conductivity. The Bi anode showed excellent rate-capability up to 16 C-rate, and long cycle life stability with a high reversible capacity of 354 mAh g–1 at 16 C-rate for 50 cycles.

Synthesis of monodisperse SnCo nanoparticles in triethylene glycol and its carbon composites for advanced lithium-ion batteries

2020 ◽  
Vol 13 (08) ◽  
pp. 2050038
Author(s):  
Yang He ◽  
Wanting Sun
Keyword(s):  
Volume Expansion ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Triethylene Glycol ◽  
Carbon Matrix ◽  
Reversible Capacity ◽  
Carbon Composites ◽  
Alloy Particles ◽  
Average Grain Size

The tin-based materials are one kind of the most promising high-capacity anode candidates for advanced Li-ion energy storage systems. However, they still face the problem of large volume expansion during charge–discharge processes, which causes rapid capacity decay and thus largely limit their serving life in practical application. In this work, ultra-fined SnCo alloy particles were successfully synthesized by a facile reduction of metal salts in triethylene glycol (TEG) solution, and then SnCo-anchored carbon composites were obtained through the calcination of SnCo-doped poly-(2-ethyl-2-oxazoline) (PEtOx) clusters. The microstructure, morphology, chemical composition and phase constitution are systematically analyzed. It is found that the as-prepared SnCo alloy particles exhibit a uniformly dispersed spherical morphology with a small average grain size of 20 nm and also a high reversible capacity of 459.1 mAh g[Formula: see text] after 100 cycles. More significantly, the SnCo/C nanocomposites present an excellent capacity retention ratio of 91.1% over 200 cycles at 100 mA g[Formula: see text] as well as good rate capability, suggesting that due to the accelerated electrons and Li[Formula: see text] transportation, the introduction of carbon matrix could significantly improve the stability of the active SnCo nanoparticles and inhibit the occurrence of their volume expansion during cycling.

Nitrogen-enriched carbon-coated flower-like bismuth sulfide architectures towards high-performance lithium-ion battery anodes

2019 ◽  
Vol 6 (5) ◽  
pp. 1275-1281 ◽  
Author(s):  
Shuwen Wang ◽  
Wenda Li ◽  
Haochen Song ◽  
Changming Mao ◽  
Zhonghua Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycle Life ◽  
Bismuth Sulfide ◽  
High Reversible Capacity ◽  
Carbon Coated ◽  
Very High

The nitrogen-enriched carbon-coated flower-like bismuth sulfide architectures prepared by a simple synthetic progress offer a very high reversible capacity, an improved rate capability and a satisfactory cycle life.

scholarly journals High capacity manganese layered-perovskite cathode for fluoride ion batteries involving cationic and anionic redox reaction

2020 ◽  
Author(s):  
Hidenori Miki ◽  
Kentaro Yamamoto ◽  
Hiroyuki Nakaki ◽  
Takahiro Yoshinari ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Energy ◽  
Perovskite Oxide ◽  
Layered Perovskite ◽  
Fluoride Ion ◽  
Fluoride Ions ◽  
Perovskite Layer

Abstract Developing electrochemical high-energy storage systems is of crucial importance towards a green and sustainable energy supply. A promising candidate is fluoride ion batteries (FIBs), which can deliver a higher energy density than is possible with lithium ion batteries1,2. However, conversion-type reactions with metal fluorides causes a poor electrochemical reversibility1,3,4. Recently, layered perovskite oxides such as LaSrMnO4 have been shown to undergo topotactic electrochemical (de)fluorination, but they have low reversible discharge capacities (25 ~ 100 mAh/g) and poor rate capabilities. Here we show that a double-layered perovskite oxyfluoride La1.2Sr1.8Mn2O7–δF2 exhibits topotactic (de)intercalation reaction inside the rock-salt slabs, achieving a large reversible capacity of 535 mAh/cm3 (0 ≤ x ≤ 2 in La1.2Sr1.8Mn2O7–δFx), with excellent cycle stability and rate capability. Surprisingly, despite the close-packed perovskite-based structure, two extra fluoride ions are (de)intercalated beyond x = 2, leading to a reversible capacity of 1168 mAh/cm3 (0 ≤ x ≤ 4). During the further intercalation, oxygen molecules are formed in the perovskite layer, as in Na0.75[ Li0.25Mn0.75 ]O25, which is responsible for the charge compensation (i.e. anion redox)5,6 and the concomitant formation of oxygen vacancies that allow the incorporation of the excess fluoride ions. These results highlight the layered perovskite oxide/oxyfluorides as a new class of active materials for the construction of high-performance FIBs. More generally, the concept of anion-intercalation through O2 formation in the mixed-anion perovskite materials can be used to develop new functionalities.

Highly conjugated poly(N-heteroacene) nanofibers for reversible Na storage with ultra-high capacity and a long cycle life

2018 ◽  
Vol 6 (38) ◽  
pp. 18592-18598 ◽  
Author(s):  
Tiantian Gu ◽  
Min Zhou ◽  
Bing Huang ◽  
Mengyun Liu ◽  
Xiaolin Xiong ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Doping Level ◽  
High Capacity ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycle Life ◽  
1D Nanostructures ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Na Doping

cPAN-NFs, featured as a highly conjugated polymer with rich CN groups and 1D nanostructures, demonstrate a high Na-doping level with a reversible capacity of 527 mA h g−1, superior rate capability at 5 A g−1 and ultra-long lifespan over 3500 cycles.

scholarly journals One-step vapor-pressured induced synthesis of spherical-like Co9S8/N, S-codoped carbon nanocomposites with superior rate capability as lithium-ion-battery anode

2021 ◽  
Vol 261 ◽  
pp. 02048
Author(s):  
Jiayang Li ◽  
Zhenwei Li ◽  
Meisheng Han
Keyword(s):  
Electrical Conductivity ◽  
Active Sites ◽  
Specific Capacity ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Carbon Matrix ◽  
Reversible Capacity ◽  
Rate Performance ◽  
Carbon Nanocomposites

As high theoretical capacity and excellent electrical conductivity, Co9S8 as a promising electrode material in lithium-ion batteries (LIBs) has attracted wide attention. In the present work, a simple vaporpressured induced route is developed for fabricating spherical-like Co9S8/N, S-codoped carbon nanocomposites (Co9S8/NSC), in which Co9S8 nanoparticles with an average size of 100 nm are encapsulated into N, S-codoped carbon matrix, by pyrolysis of mixture of cobalt isooctanoate dissolved into dimethylformamide and thiourea in a sealed vessel for the first time. As anode for LIBs, the Co9S8/NSC shows an excellent reversible capacity, a superior rate performance, and a long cycling stability. For example, a high capacity of 975.3 mA h g-1 can be achieved after 100 cycles at 0.1 A g-1. When cycled at 1 A g-1, it also maintains a high specific capacity of 791.5 mA h g-1 after 1000 cycles. Besides, it also shows a superior rate performance (329.8 mAh g-1 at 20 A g-1). Such superior performances may arise from its structural advantages that the smaller Co9S8 nanoparticles encapsulated into N, S-codoped carbon could enhance active sites, electrical conductivity, and structural stability.

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