Effect of organic additives on characteristics of carbon-coated LiCoPO4 synthesized by hydrothermal method

Maeyoshi, Yuta; Miyamoto, S.; Noda, Yusaku; Munakata, Hirokazu; Kanamura, Kiyoshi

doi:10.1016/j.jpowsour.2016.10.106

Cited by 52 publications

(47 citation statements)

References 39 publications

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“…0.2 mol of CoSO 4 ·7H 2 O, 0.2 mol of LiOH·H 2 O and 0.2 mol H 3 PO 4 were dissolved into different reactive solvents , DW (60ml), mixture of DW (30ml) and EG (30ml), mixture of DW (30ml) and ET (30ml), and mixture of DW (18ml) and ET (42ml), to prepare the precursor solution of LCP. In the second step, the use of NH 4 ·H 2 O is necessary to reach 7.5 pH value to promote the crystallization of well-formed LCP particles [3], which was heated at 200 for 24h with stirring at 200 rpm by a magnetic stirrer. After the hydrothermal treatment, the next preparation was dry-treated at 100 for 1h.…”

Section: Synthesis Of Licopomentioning

confidence: 99%

“…The crystalline phases of the products were identified by X-ray diffraction (XRD, RINT 2000/PC, Rigaku Co.) with Cu Ka radiation [3]. By XRD, We can know the intensity of crystallization and pure of synthesized LCP.…”

Section: Characterization Of Materialsmentioning

confidence: 99%

“…LiCoPO 4 (LCP) is a promising material for application in Li-ion cells as high potential cathode [1,2], possessing high output voltage, long cycle life and high energy density [3]. LiCoPO 4 has a theoretical capacity of 167mAhg -1 and a working potential of 4.8-4.9V vs [4]due to its inherently high Co 3+ /Co 2+ redox potential [5].…”

Section: Introductionmentioning

confidence: 99%

“…At present, the main synthetic routes include solid-state, wet chemistry, sol-gel, hydrothermal, co-precipitation, micro-wave heating and other method [6][7][8][9][10]. In order to obtain well formed, highly crystalline and pure LCP particles, here we report the synthesis at low temperature by a solvo-thermal route and subsequent sintering under N 2 atmosphere [3].…”

Section: Introductionmentioning

confidence: 99%

“…Here we present using different types of reactive solvents at low temperature(200℃) [3]and different reactive time, include only deionized water [DW], mixture of DE and ethylene glycol [EG], and mixture of DW and ethyl alcohol [ET]. In order to acquire morphologically homogeneous platelets suitable for lithium-ion cell application, and then, obtained materials by solvo-thermal method are treated by sintering at 600℃, 700℃, 800℃ and 900℃.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Crystalline LiCoPO4 by a Solvo-thermal Method

Zhu¹,

Li²,

Li³

et al. 2017

dteees

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Abstract. LiCoPO 4 is a candidate for application as cathode in next-generation Li-ion cells as for its high working potential of 4.8V. Here we report the synthesis of highly crystallized LiCoPO 4 by solvo-thermal method at low temperature (200℃) and subsequent sintering. The effects of solvents and sintering temperatures on the preparation of LiCoPO 4 have been investigated. As-prepared powders have been characterized by X-ray diffraction and Scan electronic microscopy. As a result, the presented synthetic route leads to well crystallized and morphologically homogeneous particles which include cube, rod-like and other morphologies. Such crystalline LiCoPO 4 with various features may be applied as cathode material in Li-ion batteries.

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Section: Synthesis Of Licopomentioning

confidence: 99%

Section: Characterization Of Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis of Crystalline LiCoPO4 by a Solvo-thermal Method

Zhu¹,

Li²,

Li³

et al. 2017

dteees

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MoS₂/Graphene Composites as Promising Materials for Energy Storage and Conversion Applications

Wang

Tran

Qian

et al. 2019

Adv Materials Inter

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Energy storage devices with high performance have been extensively studied for decades due to the increasing fuel demands. The physicochemical properties of 2D materials such as MoS 2 and graphene, due to their high surface area, versatile electronic structure, high mechanical robustness, This article is protected by copyright. All rights reserved. 2 high electrical conductivity, and desirable electrochemical characteristics, make them superior candidates for energy storage applications. MoS 2 /graphene composites specially emerge as exceptional candidates that could offer new solution for energy storage applications. Many fabrication strategies to develop and synthesize MoS 2 /graphene composites have been explored and introduced, such as hydrothermal and solvothermal treatment, chemical vapor deposition, sonication, microwave and self-assembly. For these composites to be suitable for energy storage devices applications, they are often integrated with other materials such as additional agents to improve their electrochemical and stability properties. In this review, recent progresses on the development of graphene/MoS 2 composites for energy storage and conversion applications (supercapacitors, batteries, solar cells, and hydrogen evolution) is presented and discussed. Critical review and perspectives on the future directions for MoS 2 /graphene composite based energy storage devices are also presented as concluding remarks. Recent progress on the development of graphene/MoS 2 composites for energy storage applications is also presented and discussed.

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The origin of fast‐charging lithium iron phosphate for batteries

Hadouchi

Koketsu

et al. 2022

Battery Energy

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Since the report of electrochemical activity of LiFePO4 from Goodenough's group in 1997, it has attracted considerable attention as cathode material of choice for lithium‐ion batteries. It shows excellent performance such as the high‐rate capability, long cyclability, and improved safety. Furthermore, the raw materials cost of LiFePO4 are lower and abundant compared with conventional Li‐ion battery oxides compounds. The lithium extraction from LiFePO4 operates as biphase mechanism accompanied by a relatively large volume change of ∼6.8%, even though, nanosized LiFePO4 shows exceptionally high‐rate capability during cycling. In the aim to explain this remarkable feature, recent reports using cutting‐edge techniques, such as in situ high‐resolution synchrotron X‐ray diffraction, explained that the origin of the observed high‐rate performance in nanosized LiFePO4 is the absence of phase separation during battery operation at high current densities. In this review, the importance of understanding lithium insertion mechanisms towards explaining the significantly fast‐charging performance of LiFePO4 electrode is highlighted. In particular, phase separation mechanisms, are unclear and deserve considerable attention. Several proposed models for Li diffusion and phase separation in LiFePO4 are summarized. In addition, the crystallographic aspects, defect structures of LiFePO4 are also reviewed. Finally, the status of development of other olivine‐type LiMPO4 (M = Co, Mn, and Ni) are summarized.

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Effect of organic additives on characteristics of carbon-coated LiCoPO4 synthesized by hydrothermal method

Cited by 52 publications

References 39 publications

Synthesis of Crystalline LiCoPO4 by a Solvo-thermal Method

Synthesis of Crystalline LiCoPO4 by a Solvo-thermal Method

MoS₂/Graphene Composites as Promising Materials for Energy Storage and Conversion Applications

The origin of fast‐charging lithium iron phosphate for batteries

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Effect of organic additives on characteristics of carbon-coated LiCoPO4 synthesized by hydrothermal method

Cited by 52 publications

References 39 publications

Synthesis of Crystalline LiCoPO4 by a Solvo-thermal Method

Synthesis of Crystalline LiCoPO4 by a Solvo-thermal Method

MoS2/Graphene Composites as Promising Materials for Energy Storage and Conversion Applications

The origin of fast‐charging lithium iron phosphate for batteries

Contact Info

Product

Resources

About

MoS₂/Graphene Composites as Promising Materials for Energy Storage and Conversion Applications