2015
DOI: 10.1039/c5nr01881a
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A novel nanoporous Fe-doped lithium manganese phosphate material with superior long-term cycling stability for lithium-ion batteries

Abstract: Here, we prepared LiMn0.8Fe0.2PO4 microspheres with an open three-dimensional nanoporous structure by a facile ion-exchange solvothermal method. The micro/nano-structured material exhibits an ultralong cycle life, and retains a reversible capacity of 105 mA h g(-1) after 1000 cycles at 5 C, corresponding to the capacity retention of 94.0% and only 0.0068 mA h g(-1) loss per cycle.

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Cited by 44 publications
(26 citation statements)
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“…These pores probably formed during annealing and are preserved in LMFP/C, though carbon coating and lithiation may decrease the pore volume. On the one hand, this moderate specific surface area is desired to avoid a large contact area between the nanometer‐sized particles and the electrolyte, which leads to undesired side reactions . On the other hand, the porous structure favors the penetration of electrolyte in all directions and facilitates fast Li‐ion transport at the interface between the nanoparticles and electrolyte, and thereby improves the electrochemical properties of the material.…”
Section: Resultsmentioning
confidence: 99%
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“…These pores probably formed during annealing and are preserved in LMFP/C, though carbon coating and lithiation may decrease the pore volume. On the one hand, this moderate specific surface area is desired to avoid a large contact area between the nanometer‐sized particles and the electrolyte, which leads to undesired side reactions . On the other hand, the porous structure favors the penetration of electrolyte in all directions and facilitates fast Li‐ion transport at the interface between the nanoparticles and electrolyte, and thereby improves the electrochemical properties of the material.…”
Section: Resultsmentioning
confidence: 99%
“…5 nm thick), which can substantially enhance the electronic conductivity and electrochemical capacity of the composite. Inside the primary particle (Figure d), the d spacing of the marked lattice fringe of 0.248 nm corresponds to the (121) planes of the olivine‐type crystal structure, and the clear and regular lattice fringes reveal highly crystalline character of LMFP, which is beneficial for enhancing the Li‐ion transport capability and improving the rate performance of the LMFP/C composite …”
Section: Resultsmentioning
confidence: 99%
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