Synergistic Effect for LiMn2O4Microcubes with Enhanced Rate Capability and Excellent Cycle Stability for Lithium Ion Batteries

2015 ◽  
Vol 163 (2) ◽  
pp. A197-A202 ◽  
Author(s):  
Jia Lu ◽  
Xiaoyong Fan ◽  
Cuifeng Zhou ◽  
Zongwen Liu ◽  
Feng Zheng ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Stability

Synergistic effect between flake graphite and small-sized graphene in lithium storage

2021 ◽  
pp. 2150031
Author(s):  
Hai Li ◽  
Chunxiang Lu
Keyword(s):  
Synergistic Effect ◽  
Lithium Ion Batteries ◽  
Individual Component ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Flake Graphite ◽  
Effective Strategy ◽  
Lithium Storage

As anode material for lithium-ion batteries, graphite has the disadvantage of relatively low specific capacity. In this work, a simple yet effective strategy to overcome the disadvantages by using a composite of flake graphite (FG) and small-sized graphene (SG) has been developed. The FG/SG composite prepared by dispersing FG and SG (90:10 w/w) in ethanol and drying delivers much higher specific capacity than that of individual component except for improved rate capability. More surprisingly, FG/SG composite delivers higher reversible capacity than its theoretical value calculated according to the theoretical capacities of graphite and graphene. Therefore, a synergistic effect between FG and SG in lithium storage is clearly discovered. To explain it, we propose a model that abundant nanoscopic cavities were formed due to physical adhesion between FG and SG and could accommodate extra lithium.

The encapsulation of MnFe2O4 nanoparticles into the carbon framework with superior rate capability for lithium-ion batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 4445-4451 ◽  
Author(s):  
Weiqin Li ◽  
Cuihua An ◽  
Huinan Guo ◽  
Yan Zhang ◽  
Kai Chen ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Lithium Ion Batteries ◽  
Carbon Coating ◽  
Rate Capability ◽  
Lithium Ion ◽  
Template Method ◽  
Electrochemical Performances ◽  
Carbon Framework ◽  
Mnfe2o4 Nanoparticles

The mesoporous MnFe2O4@C nanorods has been prepared using self-template method. Benefiting from the synergistic effect of carbon coating and mesoporous feature, MnFe2O4@C displays outstanding electrochemical performances for LIBs.

Improved Cycle Stability and Rate Capability of Graphene Oxide Wrapped Tavorite LiFeSO4F as Cathode Material for Lithium-Ion Batteries

2015 ◽  
Vol 7 (25) ◽  
pp. 13972-13979 ◽  
Author(s):  
Zhendong Guo ◽  
Dong Zhang ◽  
Hailong Qiu ◽  
Tong Zhang ◽  
Qiang Fu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Stability

Mg doped Li2FeSiO4/C nanocomposites synthesized by the solvothermal method for lithium ion batteries

2017 ◽  
Vol 46 (38) ◽  
pp. 12908-12915 ◽  
Author(s):  
Ajay Kumar ◽  
O. D. Jayakumar ◽  
Jagannath Jagannath ◽  
Parisa Bashiri ◽  
G. A. Nazri ◽  
...  
Keyword(s):  
Carbon Content ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Solvothermal Method ◽  
Rate Capability ◽  
Lithium Ion ◽  
Initial Discharge Capacity ◽  
Cycle Stability ◽  
Initial Discharge ◽  
Mg Doped

Despite having the same carbon content, Li2Fe0.99Mg0.01SiO4/C delivered the highest initial discharge capacity and also exhibited the best rate capability and cycle stability.

MOF-derived mesoporous anatase TiO2 as anode material for lithium–ion batteries with high rate capability and long cycle stability

2016 ◽  
Vol 674 ◽  
pp. 174-178 ◽  
Author(s):  
Zhiliang Xiu ◽  
Muhammad Hilmy Alfaruqi ◽  
Jihyeon Gim ◽  
Jinju Song ◽  
Sungjin Kim ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Rate Capability ◽  
Lithium Ion ◽  
Anatase Tio2 ◽  
High Rate ◽  
Cycle Stability ◽  
High Rate Capability ◽  
Long Cycle

scholarly journals One-Pot Synthesized Amorphous Cobalt Sulfide With Enhanced Electrochemical Performance as Anodes for Lithium-Ion Batteries

2022 ◽  
Vol 9 ◽  
Author(s):  
Long-Long Ren ◽  
Lin-Hui Wang ◽  
Yu-Feng Qin ◽  
Qiang Li
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cobalt Sulfide ◽  
Cycle Stability ◽  
One Pot ◽  
Initial Discharge ◽  
Enhanced Electrochemical Performance

In order to solve the poor cycle stability and the pulverization of cobalt sulfides electrodes, a series of amorphous and crystalline cobalt sulfides were prepared by one-pot solvothermal synthesis through controlling the reaction temperatures. Compared to the crystalline cobalt sulfide electrodes, the amorphous cobalt sulfide electrodes exhibited superior electrochemical performance. The high initial discharge and charge capacities of 2,132 mAh/g and 1,443 mAh/g at 200 mA/g were obtained. The reversible capacity was 1,245 mAh/g after 200 cycles, which is much higher than the theoretical capacity. The specific capability was 815 mAh/g at 800 mA/g and increased to 1,047 mAh/g when back to 100 mA/g, indicating the excellent rate capability. The outstanding electrochemical performance of the amorphous cobalt sulfide electrodes could result from the unique characteristics of more defects, isotropic nature, and the absence of grain boundaries for amorphous nanostructures, indicating the potential application of amorphous cobalt sulfide as anodes for lithium-ion batteries.

High rate capability and long cycle stability of Cr2O3 anode with CNTs for lithium ion batteries

2016 ◽  
Vol 212 ◽  
pp. 260-269 ◽  
Author(s):  
Syed Mustansar Abbas ◽  
Nisar Ahmad ◽  
Ata-ur-Rehman ◽  
Usman Ali Rana ◽  
Salah Ud-Din Khan ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Cycle Stability ◽  
High Rate Capability ◽  
Long Cycle
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