Triple carbon coated LiFePO4 composite with hierarchical conductive architecture as high-performance cathode for Li-ion batteries

Mei, Riguo; Yang, Yun; Song, Xiaorui; An, Zhenguo; Zhang, Jingjie

doi:10.1016/j.electacta.2014.05.131

Cited by 23 publications

(10 citation statements)

References 38 publications

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“…It is also possible to mix graphene with other conductive forms of carbon. LFP coated with three carbon sources (viz., graphene oxide, thermoplastic phenolic resin, and water-soluble starch) playing different roles in constructing the hierarchical conductive architecture delivered a capacity of 120 mAh g −1 at 10 C, but the capacity retention was not good [73]. The performance of LFP-based electrodes can be improved by combining the positive effects of graphene and carbon nanotubes.…”

Section: Lfp/graphene Compositesmentioning

confidence: 99%

Olivine Positive Electrodes for Li-Ion Batteries: Status and Perspectives

Mauger

Julien

2018

Batteries

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Among the compounds of the olivine family, LiMPO 4 with M = Fe, Mn, Ni, or Co, only LiFePO 4 is currently used as the active element of positive electrodes in lithium-ion batteries. However, intensive research devoted to other elements of the family has recently been successful in significantly improving their electrochemical performance, so that some of them are now promising for application in the battery industry and outperform LiFePO 4 in terms of energy density, a key parameter for use in electric vehicles in particular. The purpose of this review is to acknowledge the current state of the art and the progress that has been made recently on all the elements of the family and their solid solutions. We also discuss the results from the perspective of their potential application in the industry of Li-ion batteries.The main disadvantage of olivines with respect to other cathode chemistries for lithium batteries is the lower energy density. This is evidenced in Table 1 where we have reported the gravimetric and volumetric energy densities of LFP and two other cathode materials which have also found a market place in commercial batteries for electric vehicles: the manganese spinel LiMn 2 O 4 , and "LiNiCoAl" (NCA). In terms of energy density, the winner is clearly NCA, the cathode material used by Panasonic to manufacture the batteries of Tesla cars. However, the low energy density of LFP was not an obstacle for its success for EV applications. The top-selling EV manufacturer in the world today is BYD, which makes its own batteries. Its success comes from its choice of the LFP cathode chemistry. As an example, BYD's LFP battery used by e6 taxis in Shenzen has a driving range of 200 km and can be charged to 80% in just 20 min, or 100% in only 40 min using a BYD DC fast charger. The town has 12,000 taxis which will be electric by the end of this year, and all of the 7,000,000 buses are already electric buses, 80% being BYD buses.

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Section: Lfp/graphene Compositesmentioning

confidence: 99%

Olivine Positive Electrodes for Li-Ion Batteries: Status and Perspectives

Mauger

Julien

2018

Batteries

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“…Since 1994, as many as 50 articles indexed by WoS mention spray drying in combination with sol‐gel synthesis, carbothermal reduction, solid state reaction, and co‐precipitation . Several studies introduce multiple carbon sources—starch, glucose and oxalic acid, carbon nanotubes, and PVA—then calcine the solids at temperatures as high as 800

^{\circ} normalC

. Because of its strong technology component, spray drying belongs to the red cluster of subjects with the other manufacturing processes.…”

Section: Influence Of Atomization Conditions On Spray Drying Lithium mentioning

confidence: 99%

Piloting melt synthesis and manufacturing processes to produce c‐lifepo₄: preface

et al. 2019

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Since Goodenough's team laid the foundation to apply LiFePO 4 as an alternative to lithium cobalt oxide for Li-ion positive electrodes, [1,2] Web of Science (WoS) [3] has indexed over 6000 articles related to lithium iron phosphate-LFP. Manufacturers synthesize LFP with both solid state and solvent assisted hydrothermal technology. Both have their advantages and disadvantages but society requires inexpensive batteries for automobile applications and fixed electrical storage. Here we scale up each step of the nascent melt synthesis process, which has the potential to displace the current commercial technology because of its superior economics related to raw materials. The research challenges include raw material selection, melt synthesis conditions, thermodynamics, micronization to form nano-powders, followed by spray drying, and carbon coating.

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“…Xu et al [23] prepared monodispersed LiFePO 4 nanopillows in ethylene glycol, which delivered a discharge capacity of 112 mAh g À 1 at 30 C. The hollow LiFePO 4 nanoparticles synthesized using ammonium tartrate as additive presented a capacity of 120.9 mAh g À 1 at 10 C along with good cycling performance [24]. Zhou et al [25] reported hierarchical flower-like LiFePO 4 mesocrystals using the water/ethylene glycol/dimethylacetamide mixture as co-solvent, which showed a discharge capacity of 161 mAh g À 1 at 0.1 C. Various organic precursors have been used as carbon sources to prepare LiFePO 4 /C, such as starch [26], citric acid [27,28], glucose [29], sucrose [30], phenolic resin [31] and Tween, and so on [32]. The microstructure, distribution as well as content of coating carbon on the particle surface significantly affect the rate capability and cycling performance of LiFePO 4 .…”

Section: Introductionmentioning

confidence: 98%

Solvothermal synthesis of LiFePO 4 nanorods as high-performance cathode materials for lithium ion batteries

Wang

Zhu

Wang

et al. 2016

Ceramics International

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Triple carbon coated LiFePO4 composite with hierarchical conductive architecture as high-performance cathode for Li-ion batteries

Cited by 23 publications

References 38 publications

Olivine Positive Electrodes for Li-Ion Batteries: Status and Perspectives

Olivine Positive Electrodes for Li-Ion Batteries: Status and Perspectives

Piloting melt synthesis and manufacturing processes to produce c‐lifepo₄: preface

Solvothermal synthesis of LiFePO 4 nanorods as high-performance cathode materials for lithium ion batteries

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Triple carbon coated LiFePO4 composite with hierarchical conductive architecture as high-performance cathode for Li-ion batteries

Cited by 23 publications

References 38 publications

Olivine Positive Electrodes for Li-Ion Batteries: Status and Perspectives

Olivine Positive Electrodes for Li-Ion Batteries: Status and Perspectives

Piloting melt synthesis and manufacturing processes to produce c‐lifepo4: preface

Solvothermal synthesis of LiFePO 4 nanorods as high-performance cathode materials for lithium ion batteries

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Piloting melt synthesis and manufacturing processes to produce c‐lifepo₄: preface