scholarly journals A Comparison of Batteries for the MECS Project

2021 ◽  
Author(s):  
John Barton ◽  
Richard Blanchard
Keyword(s):  
High Power ◽  
Lithium Iron Phosphate ◽  
Open Circuit Voltage ◽  
Iron Phosphate ◽  
Open Circuit ◽  
Solar Pv ◽  
Weak Grid ◽  
Nominal Capacity ◽  
Nominal Voltage ◽  
Grid Applications

In the context of the MECS project, the batteries are required to operate cooking appliances. In off-grid applications they are needed to store solar PV electricity. In weak-grid or mini-grid applications, batteries are needed to store electricity for later use, when grid electricity is more expensive, insufficiently powerful, or unavailable.All the batteries tested have a nominal capacity of 100Ah and a nominal voltage of 12V. In the case of lead-carbon, a single 100Ah battery was used. In the case of VRLA and LiFePO4, two 50Ah batteries of each were used to make a total of 100Ah when connected in parallel. Of the three battery chemistries tested, the lithium-iron-phosphate (LiFePO4) is clearly superior to the lead-acid and lead-carbon. It maintains a higher open-circuit voltage and can deliver much more energy at high power.

Graphite-Embedded Lithium Iron Phosphate for High-Power–Energy Cathodes

Nano Letters ◽  
2021 ◽  
Author(s):  
Fan Li ◽  
Ran Tao ◽  
Xinyi Tan ◽  
Jinhui Xu ◽  
Dejia Kong ◽  
...  
Keyword(s):  
High Power ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate

Very high power and superior rate capability LiFePO4 nanorods hydrothermally synthesized using tetraglycol as surfactant

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 1859-1866 ◽  
Author(s):  
Ruiyuan Tian ◽  
Guangyao Liu ◽  
Haiqiang Liu ◽  
Lina Zhang ◽  
Xiaohua Gu ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
High Power ◽  
Lithium Iron Phosphate ◽  
Rate Capability ◽  
Iron Phosphate ◽  
Power Supplies ◽  
Large Current ◽  
Very High

Small polarizations, i.e. sufficiently good electronic and ionic conductivity is indispensible for high power lithium iron phosphate, especially for its applications to large current power supplies.

scholarly journals Thermal Behaviour Investigation of a Large and High Power Lithium Iron Phosphate Cylindrical Cell

Energies ◽  
2015 ◽  
Vol 8 (9) ◽  
pp. 10017-10042 ◽  
Author(s):  
Odile Capron ◽  
Ahmadou Samba ◽  
Noshin Omar ◽  
Peter Van Den Bossche ◽  
Joeri Van Mierlo
Keyword(s):  
Thermal Behaviour ◽  
High Power ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Cylindrical Cell

scholarly journals A Charge-Equalization Circuit with an Intermediate Resonant Energy Tank

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6566
Author(s):  
Yao-Ching Hsieh ◽  
You-Chun Huang ◽  
Po-Chun Chuang
Keyword(s):  
Lithium Iron Phosphate ◽  
Control Unit ◽  
Iron Phosphate ◽  
Intermediate Energy ◽  
Open Circuit ◽  
Charge Balance ◽  
Resonant Energy ◽  
Zero Current Switching ◽  
Zero Current ◽  
A Charge

In this paper, we propose a novel charge-equalization circuit for series-connected batteries. The circuit is composed of an intermediate resonant energy tank, formed by an inductor and a capacitor, and selection switches connected to each battery. The advantage of the proposed circuit is that an exchange of unbalanced charge can be established between any two batteries via the intermediate energy tank. In addition, more than one adjacent battery can serve as a charge-transference party on either side through proper activation of the associated selection switches. Moreover, by virtue of the resonant tank, zero-current switching can be achieved to significantly reduce the transference losses. A laboratory circuit with a control unit was designed for eight 2.5 Ah lithium iron phosphate (LiFePO4) batteries in series. The test results demonstrate that the proposed charge-equalization circuit can realize charge balance effectively. With the charge-equalization circuit, the worst open-circuit voltage difference can be reduced to less than 20 mV under offline conditions, which helps the batteries operate more efficiently.

Optimization of Inactive Material Content in Lithium Iron Phosphate Electrodes for High Power Applications

2016 ◽  
Vol 191 ◽  
pp. 173-182 ◽  
Author(s):  
Seonbaek Ha ◽  
Vijay K. Ramani ◽  
Wenquan Lu ◽  
Jai Prakash
Keyword(s):  
High Power ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Material Content
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