Synthesis of Carbon-Added LiFePO4 Powders and Measurement of Charge-Discharge Properties

2013 ◽  
Vol 566 ◽  
pp. 91-94
Author(s):  
Takahiro Nakamura ◽  
Motofumi Yamada ◽  
Takayuki Kodera ◽  
Takashi Ogihara
Keyword(s):  
Lithium Ion Batteries ◽  
Active Material ◽  
Ultrasonic Spray Pyrolysis ◽  
Lithium Ion ◽  
Carbon Powder ◽  
Organic Substances ◽  
Active Materials ◽  
Ultrasonic Spray ◽  
Different Types ◽  
Charge Discharge

LiFePO4/C powders were synthesized by ultrasonic spray pyrolysis using carbon powder instead of organic substances as the carbon source. LiFePO4 (LFP) powders containing different types of carbon powders were prepared and used as cathode active materials in lithium ion batteries. The charge-discharge properties of lithium ion batteries with LFP, LFP/AB, and LFP/CNT powders as the cathode material were worse than those of the battery with LFP/sucrose powder as the cathode active material.

Synthesis of Carbons Added LiFePO4 Powders by Two-Fluid Nozzle Spray Pyrolysis and Measurement the Charge-Discharge Properties

2013 ◽  
Vol 582 ◽  
pp. 123-126
Author(s):  
Takahiro Nakamura ◽  
Takayuki Kodera ◽  
Ryoma Minami ◽  
Takashi Ogihara
Keyword(s):  
Lithium Ion Batteries ◽  
Spray Pyrolysis ◽  
Active Material ◽  
Ultrasonic Spray Pyrolysis ◽  
Lithium Ion ◽  
Carbon Powder ◽  
Ultrasonic Spray ◽  
Different Types ◽  
Two Fluid ◽  
Charge Discharge

LiFePO4/C powders were synthesized by ultrasonic spray pyrolysis using carbon powder instead of organic substances as the carbon source. LiFePO4 (LFP) powders containing different types of carbon powders were prepared and used as cathode active materials in lithium ion batteries. The charge-discharge properties of lithium ion batteries with LFP, LFP/AB, and LFP/CNT powders as the cathode material were worse than those of the battery with LFP/sucrose powder as the cathode active material.

scholarly journals Performance of Cathodes Fabricated from Mixture of Active Materials Obtained from Recycled Lithium-Ion Batteries

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 410
Author(s):  
Hammad Al-Shammari ◽  
Siamak Farhad
Keyword(s):  
Lithium Ion Batteries ◽  
Active Material ◽  
Lithium Ion ◽  
Separation Process ◽  
The Other ◽  
Recycling Process ◽  
Active Materials ◽  
Actual Case ◽  
Voltage Level ◽  
The Difference

The cathode performance of lithium-ion batteries (LIBs) fabricated from recycled cathode active materials is studied for three scenarios. These scenarios are based on the conditions for separation of different cathode active materials in recycling facilities during the LIB’s recycling process. In scenario one, the separation process is performed ideally, and the obtained pure single cathode active material is used to make new LIBs after regeneration. In scenario two, the separation of active materials is performed with efficiencies of less than 100%, which is the actual case in the recycling process. In this scenario, a single cathode active material that contains a little of the other types of cathode active materials is used to make new LIBs after the materials’ regeneration. In scenario three, the separation has not been performed during the recycling process. In this scenario, all types of cathode active materials are regenerated together, and a mixture is used to make new LIBs. The studies are performed through modeling and computer simulation, and several experiments are conducted for validation purposes. The cathode active materials that are studied are the five commercially available cathodes made of LiMn2O4 (LMO), LiCoO2 (LCO), LiNixMnyCo(1−x−y)O2 (NMC), LiNixCoyAl(1−x−y)O2 (NCA), and LiFePO4 (LFP). The results indicate that the fabrication of new LIBs with a mixture of cathode active materials is possible when cathode active materials are not ideally separated from each other. However, it is recommended that the separation process is added to the recycling process, at least for the separation of LFP or reducing its amount in the cathode active materials mixture. This is because of the difference of the voltage level of LFP compared to the other studied active materials for cathodes.

Facile synthesis of 3D plum candy-like ZnCo2O4 microspheres as a high-performance anode for lithium ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79971-79977 ◽  
Author(s):  
Binbin Fan ◽  
Xiaohua Chen ◽  
Aiping Hu ◽  
Qunli Tang ◽  
Haining Fan ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Spray Pyrolysis ◽  
High Performance ◽  
Ultrasonic Spray Pyrolysis ◽  
Lithium Ion ◽  
Facile Synthesis ◽  
Ultrasonic Spray

We have demonstrated a facile method to prepared 3D plum candy-like ZnCo2O4 microspheres using an ultrasonic spray pyrolysis technology.

scholarly journals Selection of Optimum Binder for Silicon Powder Anode in Lithium-Ion Batteries Based on the Impact of Its Molecular Structure on Charge–Discharge Behavior

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 732
Author(s):  
Shimoi ◽  
Komatsu ◽  
Tanaka
Keyword(s):  
Composite Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Silicon Powder ◽  
Discharge Characteristics ◽  
The Impact ◽  
Charge Discharge ◽  
Silicon Particles

The high-capacity and optimal cycle characteristics of the silicon powder anode render it essential in lithium-ion batteries. The authors attempted to obtain a composite material by coating individual silicon particles of µm-order diameter with conductive carbon additive and resin to serve as a binder of an anode in a lithium-ion battery and thus improve its charge–discharge characteristics. Structural strain and hardness due to stress on the binder resin were alleviated by the adhesion between silicon or copper foil as a collector and the binder resin, preventing the systematic deterioration of the anode composite matrix immersed in electrolyte compositions including Li salt and fluoride. Moreover, the binder resin itself was confirmed to play a role of active material with occlusion and release of Li-ion. Furthermore, charge–discharge characteristics of the silicon powder anode active material strongly depend on the type of binder resin used; therefore, the binder resin used as composite material in rechargeable batteries should be carefully selected. Some resins for binding silicon particles were investigated for their mechanical and electrochemical properties, and a carbonized polyimide obtained a good charge–discharge cyclic property in a lithium-ion battery.

Anode performances of mixed LiMn2O4 and carbon black toward lithium-ion battery

2014 ◽  
Vol 07 (02) ◽  
pp. 1450017 ◽  
Author(s):  
Kunfeng Chen ◽  
Dongfeng Xue
Keyword(s):  
Carbon Black ◽  
Lithium Ion Batteries ◽  
Electrochemical Impedance ◽  
Active Material ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Commercial Carbon ◽  
Utilization Ratio ◽  
Material Utilization ◽  
Charge Discharge

The mixed LiMn 2 O 4 and carbon black were served as anodes for lithium-ion batteries and the samples with high active material utilization ratio showed the highest capacity and cycling retention of 407.0 mAh/g after 50 charge/discharge cycles. The galvanostatic cycling and electrochemical impedance measurements were used to study their electrochemical performances. The commercial carbon black showed higher cycling retention, 162.0 mAh/g after 50 charge/discharge cycles. The present results confirmed that the capacity and cycling retention of LiMn 2 O 4 anodes can be improved by the increase of conductivity in lithium-ion batteries, which can increase the utilization ratio of active materials.

scholarly journals The Research on Characteristics of Li-NiMnCo Lithium-Ion Batteries in Electric Vehicles

2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Sujuan Chen ◽  
Zhendong Zhao ◽  
Xinyan Gu
Keyword(s):  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Lithium Batteries ◽  
Lithium Ion ◽  
Constant Current ◽  
Battery Voltage ◽  
Discharge Characteristics ◽  
Characteristic Curves ◽  
Different Types ◽  
Charge Discharge

The energy density of canode materials for lithium-ion batteries has a major impact on the driving range of electric vehicles. In order to study the charge-discharge characteristics and application feasibility of Li-NiMnCo lithium-ion batteries for vehicles, a series of charge and discharge experiments were carried out with different rates of Li-NiMnCo lithium-ion batteries (the ratio of nickel, cobalt, and manganese was 5 : 2 : 3) in constant-current-constant-voltage mode. Firstly, a set of charge-discharge experiments were performed on different types of single-cell lithium-ion batteries. The results show that, under temperature conditions, the charge and discharge voltage-capacity curves of the four different types of Li-NiMnCo lithium batteries mentioned in the paper are not much different, and the charge-discharge characteristic curves are similar, indicating that different types of batteries with the same material composition have similar charge and discharge characteristics. Subsequently, a series of charge and discharge tests with different rates were conducted on such ternary lithium batteries. The characteristic curves with different charge-discharge rates indicate that this new type of ternary lithium battery has high current charge and discharge capability and is suitable for use in new energy electric vehicles. In addition, by analyzing the voltage-SOC curve under different magnification conditions, it is known that there is an approximate linear relationship between the battery voltage value and the SOC within a certain SOC range. The SOC value can be evaluated by the battery voltage, which should be controlled within a reasonable range to avoid overcharge or overdischarge of battery, thereby, causing permanent damage to the battery.

Sign in / Sign up

Export Citation Format

Share Document