Exploring the Evolution Process of High-Performance Amethyst Geode-Shaped Hollow Spherical LiFePO4

2021 ◽  
Author(s):  
Lu Chen ◽  
yan meng ◽  
Yujue Wang ◽  
Pengfei Wang ◽  
Jianming Li ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Evolution Process ◽  
Shape Evolution

Hollow spherical lithium iron phosphate (LiFePO4) materials display outstanding electrochemical performance in general. Previous reports on hollow spherical LiFePO4 (LFP) mostly focus on electrochemical performance, while the shape evolution process...

scholarly journals LiFePO4-Graphene Composites as High-Performance Cathodes for Lithium-Ion Batteries: The Impact of Size and Morphology of Graphene

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 842 ◽  
Author(s):  
Yanqing Fu ◽  
Qiliang Wei ◽  
Gaixia Zhang ◽  
Yu Zhong ◽  
Nima Moghimian ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Lithium Iron Phosphate ◽  
Low Cost ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Full Potential ◽  
Active Materials ◽  
Size And Morphology ◽  
The Impact

In this work, we investigated three types of graphene (i.e., home-made G, G V4, and G V20) with different size and morphology, as additives to a lithium iron phosphate (LFP) cathode for the lithium-ion battery. Both the LFP and the two types of graphene (G V4 and G V20) were sourced from industrial, large-volume manufacturers, enabling cathode production at low cost. The use of wrinkled and/or large pieces of a graphene matrix shows promising electrochemical performance when used as an additive to the LFP, which indicates that the features of large and curved graphene pieces enable construction of a more effective conducting network to realize the full potential of the active materials. Specifically, compared to pristine LFP, the LFP/G, LFP/G V20, and LFP/G V4 show up to a 9.2%, 6.9%, and 4.6% increase, respectively, in a capacity at 1 C. Furthermore, the LFP combined with graphene exhibits a better rate performance than tested with two different charge/discharge modes. Moreover, from the economic and electrochemical performance view point, we also demonstrated that 1% of graphene content is optimized no matter the capacity calculated, based on the LFP/graphene composite or pure LFP.

Judicious design of lithium iron phosphate electrodes using poly(3,4-ethylenedioxythiophene) for high performance batteries

2015 ◽  
Vol 3 (27) ◽  
pp. 14254-14262 ◽  
Author(s):  
Daniel Cíntora-Juárez ◽  
Carlos Pérez-Vicente ◽  
Samrana Kazim ◽  
Shahzada Ahmad ◽  
José Luis Tirado
Keyword(s):  
High Performance ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate

Designing of lithium iron phosphate electrodes using poly(3,4-ethylenedioxythiophene) for high performance batteries.

scholarly journals Non-stoichiometric carbon-coated LiFexPO4as cathode materials for high-performance Li-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33544-33551 ◽  
Author(s):  
Ying Feng ◽  
Junjie Gu ◽  
Feng Yu ◽  
Chunfu Lin ◽  
Jinli Zhang ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Lattice Parameters ◽  
Li Ion Batteries ◽  
Carbon Coated ◽  
Li Ion ◽  
Work First

This work first discloses the evolution of lattice parameters of the non-stoichiometric lithium iron phosphate crystals.

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