A new organic–inorganic hybrid electrolyte based on polyacrylonitrile, polyether diamine and alkoxysilanes for lithium ion batteries: synthesis, structural properties, and electrochemical characterization

RSC Advances ◽  
2014 ◽  
Vol 4 (26) ◽  
pp. 13293-13303 ◽  
Author(s):  
Yu-Chi Pan ◽  
Diganta Saikia ◽  
Jason Fang ◽  
Li-Duan Tsai ◽  
George T. K. Fey ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Structural Properties ◽  
Discharge Capacity ◽  
Lithium Ion ◽  
Electrochemical Characterization ◽  
Initial Discharge Capacity ◽  
Inorganic Hybrid ◽  
Initial Discharge

The plasticized hybrid electrolyte exhibits a maximum ionic conductivity of 6.4 mS cm−1 at 30 °C and an initial discharge capacity of 123 mA h g−1 in battery testing.

Synthesis and Electrochemical Properties of β-LiVOPO4/C as Cathode Materials for Lithium-Ion Batteries

2020 ◽  
Vol 18 (3) ◽  
Author(s):  
Hualing Tian ◽  
Zhonggang Liu ◽  
Yanjun Cai ◽  
Zhi Su
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Commercial Application ◽  
Initial Discharge Capacity ◽  
A Value ◽  
Initial Discharge ◽  
High Theoretical Capacity

Abstract Due to the high theoretical capacity, high platform voltage, stable structure, and mild conditions for synthesis, LiVOPO4 is expected to become the next generation of cathode materials for lithium-ion batteries (LIBs). However, due to the relatively weak ionic conductivity, its commercial application has been largely limited. The paper reported that acetylene black was used as the reducing agent and the pure phase nanostructured orthorhombic β-LiVOPO4 was obtained by carbothermal reduction method. A significant improvement in ionic conductivity was achieved, and the results were compared with previous studies, the initial discharge capacity of the material was considerably enhanced. The results show that the electrical conductivity and the initial discharge capacity of the material were also significantly improved. The sample obtained by holding at 600 °C for 10 h exhibited a maximum discharge capacity of 141.4 mAh g−1 between 3 V and 4.5 V at 0.05 C, with a value of 136.3 mAh g−1, retained after 50 cycles. This represents capacity retention of 96.39%.

LiNi0.5Mn1.5O4 microcubes: cathode materials with improved discharge/charge performances for lithium-ion batteries

CrystEngComm ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 399-402
Author(s):  
Yanli Fu ◽  
Liqiong Wu ◽  
Shengang Xu ◽  
Shaokui Cao ◽  
Xinheng Li
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Interfacial Effect ◽  
Initial Discharge Capacity ◽  
Initial Discharge

LiNi0.5Mn1.5O4 microcubes grown from nanowires delivered an initial discharge capacity of 123 mAh g−1 at 1C and maintained 95% of the capacity after 50 cycles due to interfacial effect.

Solvothermal Synthsis of Nano-Sized Li4Ti5O12 Particles as Anode Material for Lithium Ion Batteries

2015 ◽  
Vol 1120-1121 ◽  
pp. 281-285 ◽  
Author(s):  
Yue Zhang ◽  
Yu Jing Zhu ◽  
Yuan Xiang Gu ◽  
Rui Xin Chen
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Discharge Capacity ◽  
Solvothermal Method ◽  
Rate Capability ◽  
Lithium Ion ◽  
Electrochemical Measurements ◽  
Initial Discharge Capacity ◽  
Initial Discharge

We synthesized nano-Li4Ti5O12 particles by solvothermal method. The as-prepared materials were characterized by XRD, SEM, TEM and electrochemical measurements. The Li4Ti5O12Li4Ti5O12 showed excellent rate capability and cycle ability. The as-preparedLi4Ti5O12 Li4Ti5O12 electrode exhibited highly initial discharge capacity 176 mAh/g at 0.1 C rate up to, which was slightly higher than its theoretical capacity (175 mAh/g). By increasing the C-rate, the cell showed 152, 143, 138 and 135 mAh/g at 0.5, 1, 1.5 and 2 C, respectively.

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.

Interlayer expansion of few-layered Mo-doped SnS2 nanosheets grown on carbon cloth with excellent lithium storage performance for lithium ion batteries

2017 ◽  
Vol 5 (8) ◽  
pp. 4075-4083 ◽  
Author(s):  
Qiang Chen ◽  
Fengqi Lu ◽  
Ying Xia ◽  
Hai Wang ◽  
Xiaojun Kuang
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Carbon Cloth ◽  
Initial Discharge Capacity ◽  
Lithium Storage ◽  
Storage Performance ◽  
Initial Discharge

Mo-doped SnS2 nanosheets supported on carbon cloth are synthesized. The nanosheets, as additive-free integrated electrodes for LIBs, exhibit a high initial discharge capacity, superior cycling performance and rate capability.

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.

Effects of FEC Additive on the Low Temperature Performance of LiODFB-Based Lithium-Ion Batteries

2013 ◽  
Vol 724-725 ◽  
pp. 1025-1028
Author(s):  
Rong Xiang ◽  
Fa Qiang Li ◽  
Guo Feng Jia ◽  
Zheng Jun Peng ◽  
Qin Zhuge
Keyword(s):  
Ionic Conductivity ◽  
Low Temperature ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Lithium Ion ◽  
Electrochemical Measurements ◽  
Temperature Performance ◽  
Fluoroethylene Carbonate ◽  
Low Temperature Performance

The low temperature performance of LiFePO4/Li cells based on lithium oxalyldifluoroborate (LiODFB) with fluoroethylene carbonate (FEC) as addictive have been investigated. The result of ionic conductivity test shows that the use of 5% FEC can improve the conductivity of both LiPF6and LiODFB electrolytes at low temperature. The electrochemical measurements of the cells show that the use of FEC can effectively improve the discharge capacity and has better kinetics characteristics and low temperature performance. The LiODFB cell with FEC also exhibits excellent cycling retention of 88.8% after 50 cycles at-20°C.

Enhanced electrochemical capabilities of lithium ion batteries by structurally ideal AAO separator

2015 ◽  
Vol 3 (20) ◽  
pp. 10715-10719 ◽  
Author(s):  
Yong-keon Ahn ◽  
Junwoo Park ◽  
Dalwoo Shin ◽  
Sanghun Cho ◽  
Si Yun Park ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Current Distribution ◽  
Aluminium Oxide ◽  
Lithium Ion ◽  
Lithium Metal ◽  
Capacity Fading ◽  
Uniform Current

Nanoporous anodic aluminium oxide (AAO) enables the direct utilization of lithium metal as an ideal anode, owing to a uniform current distribution. The electrochemical performance of the AAO separator is superior to commercial polypropylene, in terms of ionic conductivity, discharge capacity, and capacity fading.

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