Mesoporous LiFePO<sub>4</sub>/C Nanocomposite Cathode Materials for High Power Lithium Ion Batteries with Superior Performance

Wang, Guoxiu; Líu, Hao; Liu, Jian; Qiao, Shi Zhang; Lu, Gao Qing; Munroe, Paul; Ahn, Hyo‐Jun

doi:10.1002/adma.201002045

Cited by 393 publications

(289 citation statements)

References 42 publications

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Section: Introductionmentioning

confidence: 99%

“…LiCoO 2 is the widely applied cathode material in the commercial LIBs owing to its good electrochemical properties and the convenience of preparation, but it suffers from high cost, toxicity, and unsafety [3][4][5][6][7]. LiFePO 4 with the olivine structure has attracted a large interest after it was reported by Goodenough and his co-workers [8]. It is believed that LiFePO 4 will be the best candidate of the LIB's cathode material because of its high energy density, low cost, environmental compatibility, and intrinsic thermal safety [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…A few methods could be attempted to solve this problem. One method is to produce nano-sized LiFePO 4 particles, which is helpful for Li ion transport by shortening diffusion path and increasing the electrode/electrolyte contact area [15,16]. Another method is to enhance the conductivity of LiFePO 4 by conductive carbon coating [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…To prepare nano-sized LiFe-PO 4 /C composite with a controllable carbon content, the combination of the sol-gel method and the solid-state method is proposed. In this article, the nano-sized LiFePO 4 /C composite was synthesized using a two-step method: (1) FePO 4 was synthesized by a sol-gel method with a combustion process in air; therefore, the nano-sized intermediate FePO 4 particles without carbon was prepared; (2) LiFePO 4 /C was synthesized via the solid-state method using the as-prepared nano-sized FePO 4 intermediate, Li 2 CO 3 and glucose as raw materials. During the process, the carbon content is determined by glucose, and the ferric can be reduced to the ferrous by carbon at high temperature.…”

Section: Introductionmentioning

confidence: 99%

“…During the process, the carbon content is determined by glucose, and the ferric can be reduced to the ferrous by carbon at high temperature. Therefore, the combination of the sol-gel method and the solid-state reaction could not only obtain nano-sized LiFePO 4 , but also control the carbon content for the carbon coating.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

et al. 2011

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In this study, LiFePO 4 /C is synthesized via a novel two-step method. The first step is the synthesis of nano-sized intermediate FePO 4 by a modified sol-gel method. A fast and full combustion procedure is involved to remove carbon and control the size of the intermediate particles. The second step is to prepare LiFePO 4 /C by combining solid-state reaction with controllable carbon coating. This two-step method is facile to prepare nanosized LiFePO 4 and easy to optimize the carbon content for surface coating. X-ray diffraction shows that the LiFePO 4 / C composite possesses good crystallinity. Spherical morphology with a diameter of 30-150 nm is observed by scanning electron microscope and transmission electron microscope. Electrochemical measurements indicate that the LiFePO 4 /C composite exhibits discharge capacities of 162, 144, 126, and 106 mAh g -1 at 0.1, 1, 2, and 5C, respectively. No capacity fading is observed in 50 cycles.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

et al. 2011

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Sol–Gel Materials for Batteries and Fuel Cells

Mosa

Aparicio

2015

The Sol‐Gel Handbook

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Graphene‐Based Electrodes for Lithium Ion Batteries

Wang

Liu

Sun

2015

Graphene‐based Energy Devices

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IntroductionAs a kind of carbon material, graphene sheet (GS) has attracted increasing attention in a variety of fields because of its high theoretical specific surface area (2600 m 2 g −1 ), good flexibility, superior chemical/thermal stability, and extraordinary electrical, thermal, and mechanical properties. The unique structure and outstanding properties render graphene highly promising for a wide range of applications in electronics, sensors, and energy storage/conversion.In the field of lithium ion batteries (LIBs), graphene has wide potential windows and rich surface chemistry, and thus can be used as electrode material individually. Also, the high conductivity and unique layered structure make graphene a predominant matrix to form hybrids with other cathode and anode materials. Significant synergistic effects often occur in graphene/other material composites, which will greatly enhance the overall electrochemical performance: On one hand, the conductivity of cathode or anode materials can be significantly increased after compositing with graphene, which will improve the electron transport and rate capability of the electrode; on the other, the good mechanical property of graphene can help maintain the microstructure of electrode materials and improve the cyclic stability. Besides, graphene has an extremely large aspect ratio and excellent structural flexibility; thus it can act as building blocks to self-assemble into two-dimensional (2D) flexible and free-standing electrode as well as three-dimensional (3D) macroscopic aerogels. This is of great importance to promote the development of new electrode structures and new types of LIBs.In this review, we will summarize recent research progress on the synthesis methods, structural design, and electrochemical performance of graphene-based electrodes for high-performance LIBs, including graphene-based cathode materials, graphene-based anode materials, 2D graphene-based flexible electrodes, and 3D macroscopic graphene-based electrodes.Graphene-based Energy Devices, First Edition. Edited by A. Rashid bin Mohd Yusoff.

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Mesoporous LiFePO₄/C Nanocomposite Cathode Materials for High Power Lithium Ion Batteries with Superior Performance

Cited by 393 publications

References 42 publications

Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

Sol–Gel Materials for Batteries and Fuel Cells

Graphene‐Based Electrodes for Lithium Ion Batteries

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Mesoporous LiFePO4/C Nanocomposite Cathode Materials for High Power Lithium Ion Batteries with Superior Performance

Cited by 393 publications

References 42 publications

Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

Sol–Gel Materials for Batteries and Fuel Cells

Graphene‐Based Electrodes for Lithium Ion Batteries

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Product

Resources

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Mesoporous LiFePO₄/C Nanocomposite Cathode Materials for High Power Lithium Ion Batteries with Superior Performance