graphene-modified lifepo 4 cathode for lithium ion

Frontiers

Lithium (Li) metal is regarded as the ideal anode for rechargeable Li-metal batteries such as Li-S and Li-air batteries. A series of problems caused by Li dendrites, such as low Coulombic efficiency (CE) and a short circuit, have limited the application of Li-metal batteries. In this study, a graphene-modified three-dimensional (3D) Copper (Cu) current collector is addressed to enable dendrite

A simple solvothermal route to synthesize graphene

2012/7/15To improve the rate performance and cycling stability of LiFePO 4, graphene-modified LiFePO 4 composite has been developed as Li-ion battery cathode material. The composite is successfully prepared via a novel solvothermal route. C-LiFePO 4 /graphene, with structure of C-LiFePO 4 nanoparticles embedded in graphene matrix, exhibits excellent electrochemical properties, including

A flexible LiFePO 4 /carbon nanotube/reduced graphene

By a rational design and facile vacuum filtration, a flexible and free-standing LiFePO4/carbon nanotube/reduced graphene oxide film electrode is fabricated for lithium-ion batteries. The carbon nanotube and reduced graphene oxide substrates are favor of improving the conductivity of the electrode; meanwhile, the LiFePO4 particles can efficiently reduce aggregation between carbon

Sucrose‐Assisted Loading of LiFePO4 Nanoparticles on

Sucrose‐Assisted Loading of LiFePO 4 Nanoparticles on Graphene for High‐Performance Lithium‐Ion Battery Cathodes Yongmin Wu Department of Chemistry, Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Tsinghua University, Beijing 100084 (P.R. China)

Study of LiFePO4 cathode modified by graphene sheets for

2013/1/15Study of LiFePO 4 cathode modified by graphene sheets for high-performance lithium ion batteries Author links open overlay panel Hui Bi a Fuqiang Huang a b Yufeng Tang a Zhanqiang Liu a Tianquan Lin a Jian Chen a Wei Zhao a

Graphene

The specific capacity of commercially available cathode carbon-coated lithium iron phosphate is typically 120-160 mAh gSUP-1/SUP, which is lower than the theoretical value 170 mAh gSUP-1/SUP. Here we report that the carbon-coated lithium iron phosphate, surface-modified with 2 wt% of the electrochemically exfoliated graphene layers, is able to reach 208 mAh gSUP-1/SUP in

Materials

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

(PDF) Nanostructured high specific capacity C

Nanostructured high specific capacity C-LiFePO 4 cathode material for lithium-ion batteries Yuan Huang Download PDF Download Full PDF Package This paper A short summary of this paper 37 Full PDFs related to this paper READ PAPER Nanostructured high

Study of LiFePO4 cathode modified by graphene sheets

2013/1/15Study of LiFePO 4 cathode modified by graphene sheets for high-performance lithium ion batteries Author links open overlay panel Hui Bi a Fuqiang Huang a b Yufeng Tang a Zhanqiang Liu a Tianquan Lin a Jian Chen a Wei Zhao a

Graphene for flexible lithium

With the advent of flexible electronics, flexible lithium-ion batteries (LIBs) have attracted great attention as a promising power source in the emerging field of flexible and wearable electronic devices. Flexible LIBs are generally LIBs that can operate within the normal

Graphene modified LiFePO4 cathode materials for high

Graphene modified LiFePO4 cathode ma Graphene modified LiFePO4 cathode materials for high power lithium ion batteries Xufeng Zhou, Feng Wang, Yimei Zhu, Zhaoping Liu (Paper from J. Mater. Chem.) Xufeng Zhou, J. Mater. Chem., 2011, DOI: 10.1039

Graphene Modified LiFePO4 Cathode Materials for High

Abstract Graphene-modified LiFePO{sub 4} composite has been developed as a Li-ion battery cathode material with excellent high-rate capability and cycling stability. Zhou, X, Wang, F, Zhu, Y, and Liu, Z. Graphene Modified LiFePO4 Cathode Materials for High Power Lithium ion Batteries..

Synthesis of LiFePO4/graphene nanocomposite and its

LiFePO 4 /graphene nanocomposite was successfully synthesized by rheological phase method and its electrochemical properties as the cathode materials for lithium ion batteries were measured. As the iron source in the synthesis, FeOOH nanorods anchored on

Optimized LiFePO4–Polyacene Cathode Material for

Zhongqing Jiang, Baoan Zhang, Qiujie Shen, Zhong-Jie Jiang, In-situ plasma assisted formation of graphitic nanosheet supported N-doped carbon-coated antisite defectless LiFePO4 as a high-performance cathode material for lithium-ion batteries, Journal of Alloys and Compounds, 10.1016/j.jallcom.2019.07.309, (2019).

The application of graphene in lithium ion battery

2014/10/8Some of the most commonly studied cathode materials used in lithium ion batteries (LIBs) are LiCoO 2, LiMn 2 O 4, LiFePO 4 and Li 3 V 2 (PO 4) 3.These materials have electronic conductivities of 10-4 S/cm (Dokko et al.2001; Barker et al.1996; Levasseur et al.2002), 10-6 S/cm (Marzec et al.2002; Cao Prakash2002), 10-9 S/cm (Prosini et al.2002; Shi et al.2003) and 2.4 10-7 S/cm (Pan et al

Composites of Graphene and LiFePO 4 as Cathode

2014/9/27The crystalline LFP particles used in LIB cathode can be routinely prepared through sol–gel, hydrothermal, or solid-state reactions using different precursors [34–36].The graphene sheets can usually be generated through mechanical exfoliation of the bulk graphite [], chemical vapor deposition, CVD [38–40], chemical reduction of graphene oxide, GO [41–44], and electrochemical synthesis

Fabrication of Graphene Embedded LiFePO4 Using a

We have designed a unique microstructure of graphene embedded LiFePO4 by a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. The stable amide bonds between LiFePO4 and graphene were formed by the catalyst assisted self assembly. High conductive graphene provides a fast electron transfer path, and many pores inside the structure facilitate the

Lithium acetate modified PU/graphene composites as

The results show that the as‐prepared lithium acetate modified PU/graphene separator is a promising candidate for commercial polyolefin separators. 1 Introduction Lithium‐ion batteries (LIBs) have been widely used as the power source for portable electronic devices and electric vehicles due to their high energy density, and excellent cycle performance [ [1] - [6] ].

Carbon nanostructures modified LiFePO4 cathodes for

Lithium iron phosphate (LiFePO 4) battery cathode was fabricated without using any metallic current collector and polymeric binder.Carbon nanostructures (CNS) were used as microbinders for LiFePO4 particles and at the same time as a 3Dcurrent collector. Afacile

Enhanced electrochemical performance of graphene

High conductivity matrix of Graphene- and nanoLiFePO 4 is prepared by sol get method. High rate capability was observed for the composite cathode. • High charge-discharge cyclic stability was also observed. We report the synthesis of LiFePO 4 /graphene nano-composites using sol–gel method in the presence of dispersed graphene oxide mixed with LiFePO 4 precursors.

Graphene

The specific capacity of commercially available cathode carbon-coated lithium iron phosphate is typically 120-160 mAh g(-1), which is lower than the theoretical value 170 mAh g(-1). Here we report that the carbon-coated lithium iron phosphate, surface-modified with 2 wt% of the electrochemically exfoliated graphene layers, is able to reach 208 mAh g(-1) in specific capacity.

Synthesis of LiFePO4/graphene nanocomposite and its

LiFePO 4 /graphene nanocomposite was successfully synthesized by rheological phase method and its electrochemical properties as the cathode materials for lithium ion batteries were measured. As the iron source in the synthesis, FeOOH nanorods anchored on

Recent Progress in Capacity Enhancement of LiFePO4

LiFePO 4 (lithium iron phosphate (LFP)) is a promising cathode material due to its environmental friendliness, high cycling performance, and safety characteristics. On the basis of these advantages, many efforts have been devoted to increasing specific capacity and high-rate capacity to satisfy the requirement for next-generation batteries with higher energy density.

Composites of Graphene and LiFePO_4 as Cathode Materials for Lithium

Lithium iron phosphate Graphene Composite Electrochemical property Lithium-ion battery 【】:This mini-review highlights selectively the recent research progress in the composites of Li Fe PO4 and graphene.In particularly, the different fabrication protocols

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