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Coral-shaped porous LiFePO4/graphene hybrids for high rate and all-climate battery applications
- Source :
- Energy Storage Materials. 21:457-463
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Tailor-designed cathode materials are essential for Li-ion batteries with both high energy density and outstanding capacity retention. Here we have designed and fabricated coral-shaped hierarchical porous LiFePO4/graphene hybrids for lithium-ion batteries. These novel hybrid materials exhibit excellent electrochemical performance over a wide temperature range from −40 °C to +60 °C. Even at −40 °C, the hybrid cathode can deliver a high initial capacity of 120 mAhg−1 and still maintain a discharge capacity of 80 mAhg−1 after 500 cycles with a very low capacity loss of 0.066% per cycle. The excellent wide-temperature performance can be ascribed to the porous structure and fast ion/electronic transport kinetics of the high conductive framework.
- Subjects :
- Battery (electricity)
Materials science
Energy Engineering and Power Technology
Nanotechnology
02 engineering and technology
010402 general chemistry
Electrochemistry
01 natural sciences
law.invention
law
Li-ion battery
General Materials Science
Porosity
ta218
Renewable Energy, Sustainability and the Environment
Graphene
Hierarchical porous structures
Atmospheric temperature range
021001 nanoscience & nanotechnology
Cathode
0104 chemical sciences
LiFePO
All-climate
0210 nano-technology
Capacity loss
Hybrid material
Subjects
Details
- ISSN :
- 24058297
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Energy Storage Materials
- Accession number :
- edsair.doi.dedup.....cb8e287d7ee005b63323b05b092c3740