Composites of boron-doped carbon nanosheets and iron oxide nanoneedles: fabrication and lithium ion storage performance

2014 ◽  
Vol 2 (24) ◽  
pp. 9111-9117 ◽  
Author(s):  
Yongqiang Yang ◽  
Jianan Zhang ◽  
Xiaochen Wu ◽  
Yongsheng Fu ◽  
Haixia Wu ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
High Rate Capability ◽  
Carbon Nanosheets ◽  
Storage Performance ◽  
Boron Doped ◽  
Ion Storage ◽  
Excellent Cycling Stability

Composites of boron-doped carbon nanosheets/Fe3O4 nanoneedles show a large specific capacity, high rate capability, and excellent cycling stability as an anode for lithium ion batteries.

scholarly journals Proton-assisted calcium-ion storage in aromatic organic molecular crystal with coplanar stacked structure

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Cuiping Han ◽  
Hongfei Li ◽  
Yu Li ◽  
Jiaxiong Zhu ◽  
Chunyi Zhi
Keyword(s):  
Calcium Ion ◽  
Active Material ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Mechanistic Study ◽  
Ionic Diffusion ◽  
High Rate Capability ◽  
Ion Storage

AbstractRechargeable calcium-ion batteries are intriguing alternatives for use as post-lithium-ion batteries. However, the high charge density of divalent Ca2+ establishes a strong electrostatic interaction with the hosting lattice, which results in low-capacity Ca-ion storage. The ionic radius of Ca2+ further leads to sluggish ionic diffusion, hindering high-rate capability performances. Here, we report 5,7,12,14-pentacenetetrone (PT) as an organic crystal electrode active material for aqueous Ca-ion storage. The weak π-π stacked layers of the PT molecules render a flexible and robust structure suitable for Ca-ion storage. In addition, the channels within the PT crystal provide efficient pathways for fast ionic diffusion. The PT anode exhibits large specific capacity (150.5 mAh g-1 at 5 A g-1), high-rate capability (86.1 mAh g-1 at 100 A g-1) and favorable low-temperature performances. A mechanistic study identifies proton-assisted uptake/removal of Ca2+ in PT during cycling. First principle calculations suggest that the Ca ions tend to stay in the interstitial space of the PT channels and are stabilized by carbonyls from adjacent PT molecules. Finally, pairing with a high-voltage positive electrode, a full aqueous Ca-ion cell is assembled and tested.

Sheet-like MoSe2/C composites with enhanced Li-ion storage properties

2015 ◽  
Vol 3 (22) ◽  
pp. 11857-11862 ◽  
Author(s):  
Yuan Liu ◽  
Minqiang Zhu ◽  
Di Chen
Keyword(s):  
Specific Capacity ◽  
Rate Capability ◽  
High Rate ◽  
Li Ion Battery ◽  
High Rate Capability ◽  
High Specific Capacity ◽  
Storage Performance ◽  
Ion Storage ◽  
Li Ion ◽  
Storage Properties

A sheet-like MoSe2/C composite-based Li-ion battery exhibits an excellent Li storage performance, including a high specific capacity, good cyclability and high rate capability.

An artificial sea urchin with hollow spines: improved mechanical and electrochemical stability in high-capacity Li–Ge batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 5812-5816 ◽  
Author(s):  
Jinyun Liu ◽  
Xirong Lin ◽  
Tianli Han ◽  
Qianqian Lu ◽  
Jiawei Long ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Sea Urchin ◽  
Specific Capacity ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Electrochemical Stability ◽  
High Rate ◽  
High Rate Capability ◽  
High Specific Capacity

Metallic germanium (Ge) as the anode can deliver a high specific capacity and high rate capability in lithium ion batteries.

Understanding the formation of ultrathin mesoporous Li4Ti5O12 nanosheets and their application in high-rate, long-life lithium-ion anodes

Nanoscale ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 520-531 ◽  
Author(s):  
Dongdong Wang ◽  
Zhongqiang Shan ◽  
Jianhua Tian ◽  
Zheng Chen
Keyword(s):  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
High Rate ◽  
High Rate Capability ◽  
Long Life ◽  
Excellent Cycling Stability

Ultrathin mesoporous Li4Ti5O12 nanosheets, which offer high capacity, high rate capability and excellent cycling stability, were synthesized in a controlled fashion.

scholarly journals Integrating TiO2/SiO2 into Electrospun Carbon Nanofibers towards Superior Lithium Storage Performance

Nanomaterials ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 68 ◽  
Author(s):  
Wenxing Liu ◽  
Tianhao Yao ◽  
Sanmu Xie ◽  
Yiyi She ◽  
Hongkang Wang
Keyword(s):  
Carbon Nanofibers ◽  
Anode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Cycle Stability ◽  
High Rate Capability ◽  
Lithium Storage ◽  
Storage Performance ◽  
The Poor

In order to overcome the poor electrical conductivity of titania (TiO2) and silica (SiO2) anode materials for lithium ion batteries (LIBs), we herein report a facile preparation of integrated titania–silica–carbon (TSC) nanofibers via electrospinning and subsequent heat-treatment. Both titania and silica are successfully embedded into the conductive N-doped carbon nanofibers, and they synergistically reinforce the overall strength of the TSC nanofibers after annealing (Note that titania–carbon or silica–carbon nanofibers cannot be obtained under the same condition). When applied as an anode for LIBs, the TSC nanofiber electrode shows superior cycle stability (502 mAh/g at 100 mA/g after 300 cycles) and high rate capability (572, 518, 421, 334, and 232 mAh/g each after 10 cycles at 100, 200, 500, 1000 and 2000 mA/g, respectively). Our results demonstrate that integration of titania/silica into N-doped carbon nanofibers greatly enhances the electrode conductivity and the overall structural stability of the TSC nanofibers upon repeated lithiation/delithiation cycling.

Nanocubes composed of FeS2@C nanoparticles as advanced anode materials for K-ion storage

2020 ◽  
Vol 7 (2) ◽  
pp. 394-401 ◽  
Author(s):  
Yushan Luo ◽  
Mengli Tao ◽  
Jianhua Deng ◽  
Renming Zhan ◽  
Bingshu Guo ◽  
...  
Keyword(s):  
Anode Materials ◽  
Specific Capacity ◽  
Rate Capability ◽  
Cycling Stability ◽  
Core Shell ◽  
Capacity Retention ◽  
Storage Performance ◽  
Ion Storage ◽  
Excellent Cycling Stability ◽  
Unique Core

The unique core–shell structural FeS2@C nanocubes display outstanding K-storage performance with impressive specific capacity, excellent cycling stability and superior rate capability with 73% capacity retention at 2 A g−1.

Synthesis of an indium oxide nanoparticle embedded graphene three-dimensional architecture for enhanced lithium-ion storage

2015 ◽  
Vol 3 (35) ◽  
pp. 18238-18243 ◽  
Author(s):  
Si Qin ◽  
Dan Liu ◽  
Weiwei Lei ◽  
Ying Chen
Keyword(s):  
Three Dimensional ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
High Rate Capability ◽  
High Reversible Capacity ◽  
Ion Storage ◽  
3D Architecture ◽  
Oxide Nanoparticle

An In2O3 nanoparticle embedded graphene 3D architecture exhibits high reversible capacity and high rate capability as an anode material for lithium-ion batteries.

Ultrathin TiO2-B nanowires with enhanced electrochemical performance for Li-ion batteries

2015 ◽  
Vol 3 (18) ◽  
pp. 10038-10044 ◽  
Author(s):  
Tongbin Lan ◽  
Jie Dou ◽  
Fengyan Xie ◽  
Peixun Xiong ◽  
Mingdeng Wei
Keyword(s):  
Electrochemical Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Li Ion Batteries ◽  
High Rate Capability ◽  
Li Ion ◽  
Excellent Cycling Stability ◽  
Enhanced Electrochemical Performance ◽  
Charge Discharge

Ultrathin TiO2-B nanowires with the most open channels exhibited large reversible lithium-ion charge–discharge capacity, excellent cycling stability and high-rate capability.

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