scholarly journals Preparation and Investigation of a Novel Organic Polymer Consisting of 2,2,6,6-Tetramethylpiperidine-N-oxy as a Cathode Active Material in Li-Ion Batteries

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Emre Biçer ◽  
Atilla Öktemer
Keyword(s):  
Discharge Capacity ◽  
High Power ◽  
Active Material ◽  
Organic Polymer ◽  
Organic Radical ◽  
Li Ion Batteries ◽  
Cycle Stability ◽  
Coin Cell ◽  
Li Ion

In the present study, a novel organic polymer consisting of 2,2,6,6-tetramethylpiperidine-N-oxyl group as an electroactive center is employed by synthesizing it from a commercially ready polymer. An investigation on electrochemical and battery properties of this material as a cathode active material in different electrolyte salts was conducted. A coin cell shows a discharge capacity of 40 mAh g−1at 1 Cwhich is 76% of its theoretical capacity. It is observed that there is no significant decrease in capacity value even at 2 Cand 5 Cwhich indicates that it is applicable for the high-power applications. Besides, a good cycle stability is obtained with the organic radical battery.

Discharge capacity estimation for Li-ion batteries based on particle filter under multi-operating conditions

Energy ◽  
2015 ◽  
Vol 86 ◽  
pp. 638-648 ◽  
Author(s):  
Junfu Li ◽  
Lixin Wang ◽  
Chao Lyu ◽  
Liqiang Zhang ◽  
Han Wang
Keyword(s):  
Particle Filter ◽  
Discharge Capacity ◽  
Operating Conditions ◽  
Li Ion Batteries ◽  
Capacity Estimation ◽  
Li Ion

scholarly journals High power nano-structured V2O5 thin film cathodes by atomic layer deposition

2014 ◽  
Vol 2 (36) ◽  
pp. 15044-15051 ◽  
Author(s):  
Erik Østreng ◽  
Knut Bjarne Gandrud ◽  
Yang Hu ◽  
Ola Nilsen ◽  
Helmer Fjellvåg
Keyword(s):  
Thin Film ◽  
Atomic Layer Deposition ◽  
High Power ◽  
Atomic Layer ◽  
Li Ion Batteries ◽  
Layer Deposition ◽  
Li Ion

Atomic layer deposition (ALD) has been used to prepare nano-structured cathode films for Li-ion batteries of V2O5 from VO(thd)2 and ozone at 215 °C.

Nitrogen-doped carbon stabilized LiFe0.5Mn0.5PO4/rGO cathode materials for high-power Li-ion batteries

2020 ◽  
Vol 28 (7) ◽  
pp. 1935-1940 ◽  
Author(s):  
Haifeng Yu ◽  
Zhaofeng Yang ◽  
Huawei Zhu ◽  
Hao Jiang ◽  
Chunzhong Li
Keyword(s):  
High Power ◽  
Cathode Materials ◽  
Li Ion Batteries ◽  
Nitrogen Doped ◽  
Li Ion ◽  
Nitrogen Doped Carbon

scholarly journals Charge and Discharge Behaviour of Li-Ion Batteries at Various Temperatures Containing LiCoO2 Nanostructured Cathode Produced by CCSO

2015 ◽  
Vol 15 (4) ◽  
pp. 301 ◽  
Author(s):  
Y.Y. Mamyrbayeva ◽  
R.E. Beissenov ◽  
M.A. Hobosyan ◽  
S.E. Kumekov ◽  
K.S. Martirosyan
Keyword(s):  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Synthetic Approach ◽  
Capacity Fade ◽  
Li Ion Batteries ◽  
Material Loss ◽  
Method Performance ◽  
Battery Capacity ◽  
Li Ion

<p>There are technical barriers for penetration market requesting rechargeable lithium-ion battery packs for portable devices that operate in extreme hot and cold environments. Many portable electronics are used in very cold (-40 °C) environments, and many medical devices need batteries that operate at high temperatures. Conventional Li-ion batteries start to suffer as the temperature drops below 0 °C and the internal impedance of the battery  increases. Battery capacity also reduced during the higher/lower temperatures. The present work describes the laboratory made lithium ion battery behaviour features at different operation temperatures. The pouch-type battery was prepared by exploiting LiCoO<sub>2</sub> cathode material synthesized by novel synthetic approach referred as Carbon Combustion Synthesis of Oxides (CCSO). The main goal of this paper focuses on evaluation of the efficiency of positive electrode produced by CCSO method. Performance studies of battery showed that the capacity fade of pouch type battery increases with increase in temperature. The experimental results demonstrate the dramatic effects on cell self-heating upon electrochemical performance. The study involves an extensive analysis of discharge and charge characteristics of battery at each temperature following 30 cycles. After 10 cycles, the battery cycled at RT and 45 °C showed, the capacity fade of 20% and 25% respectively. The discharge capacity for the battery cycled at 25 °C was found to be higher when compared with the battery cycled at 0 °C and 45 °C. The capacity of the battery also decreases when cycling at low temperatures. It was important time to charge the battery was only 2.5 hours to obtain identical nominal capacity under the charging protocol. The decrease capability of battery cycled at high temperature can be explained with secondary active material loss dominating the other losses.</p>

Layered-spinel capped nanotube assembled 3D Li-rich hierarchitectures for high performance Li-ion battery cathodes

2016 ◽  
Vol 4 (47) ◽  
pp. 18416-18425 ◽  
Author(s):  
Fu-Da Yu ◽  
Lan-Fang Que ◽  
Zhen-Bo Wang ◽  
Yin Zhang ◽  
Yuan Xue ◽  
...  
Keyword(s):  
High Performance ◽  
Diffusion Rate ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Cycle Stability ◽  
Ion Diffusion ◽  
Irreversible Capacity ◽  
Capacity Loss ◽  
Li Ion ◽  
Resultant Material

We report an effective approach to fabricate layered-spinel capped nanotube assembled 3D Li-rich hierarchitectures as a cathode material for Li-ion batteries. The resultant material exhibits a reduced first-cycle irreversible capacity loss, rapid Li-ion diffusion rate and excellent cycle stability.

scholarly journals Enhanced cycling performance of nanostructure LiFePO4/C composites with in situ 3D conductive networks for high power Li-ion batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (73) ◽  
pp. 41850-41857 ◽  
Author(s):  
Chunsong Zhao ◽  
Lu-Ning Wang ◽  
Jitao Chen ◽  
Min Gao
Keyword(s):  
High Power ◽  
Cycling Performance ◽  
High Rate ◽  
Li Ion Batteries ◽  
Li Ion

Excellent cycling performance for a high rate LiFePO4/C composite with in situ 3D conductive networks.

Enhanced rate performance of nano–micro structured LiFePO4/C by improved process for high-power Li-ion batteries

2011 ◽  
Vol 56 (13) ◽  
pp. 4865-4868 ◽  
Author(s):  
Bing Huang ◽  
Xiaodong Zheng ◽  
Xiaoping Fan ◽  
Guanghui Song ◽  
Mi Lu
Keyword(s):  
High Power ◽  
Rate Performance ◽  
Li Ion Batteries ◽  
Li Ion
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