High-rate and ultralong cycle-life LiFePO4 nanocrystals coated by boron-doped carbon as positive electrode for lithium-ion batteries

Feng, Jinpeng; Wang, Youlan

doi:10.1016/j.apsusc.2016.08.066

Cited by 34 publications

(6 citation statements)

References 55 publications

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“…Another important factor is the charge transfer between the composite components as a result of chemical interactions. Feng and Wang doped the carbon layer with boron to make it more electrochemically permeable . This is indeed an important point as the regular sp 2 hybrid of carbon is electrochemically inactive, and it is necessary to alter the sp 2 hybrid to facilitate the charge transfer. , The LiFePO 4 @B 0.4 -C cathode delivered a specific capacity of 126.8 mAh g –1 at 10C.…”

Section: Electrode Materialsmentioning

confidence: 99%

Lithium-Ion Batteries with High Rate Capabilities

Eftekhari

2017

ACS Sustainable Chem. Eng.

113

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Rate capability has always been an important factor in the design of lithium-ion batteries (LIBs), but recent commercial demands for fast charging LIBs have added to this importance. Although almost all works devoted to the LIB electrode materials examine the rate capability somehow, there are growing efforts in the quest for high rate capability LIBs. Because this is only possible by a subtle design at the material architecture to maximize both the ion and charge transfer processes simultaneously, the achievements can be applied to various materials. Owing to the fact that the term high rate capability is a relative concept in the literature, the present paper aims to provide a general picture of the achievements in a comparative manner to highlight the most promising results reported in the literature.

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Section: Electrode Materialsmentioning

confidence: 99%

Lithium-Ion Batteries with High Rate Capabilities

Eftekhari

2017

ACS Sustainable Chem. Eng.

113

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“…The results are also obtained in the research about experimental and theoretical research of boron‐doped materials. [ 27 ] Moreover, the BC 2 O and BCO 2 type bonds can remarkably generate numerous extrinsic defects and active sites, which allow the rapid surface Li + absorption and ultrafast Li + diffusion in the carbon coating layer of LiMn 0.8 Fe 0.2 PO 4 @B‐C. [ 28 ] Furthermore, the area of B 4 C is smaller than other B–C species in Figure 2e, which is favorable for the lower energy barrier of electron diffusion.…”

Section: Resultsmentioning

confidence: 99%

Boron‐Catalyzed Graphitization Carbon Layer Enabling LiMn_0.8Fe_0.2PO₄ Cathode Superior Kinetics and Li‐Storage Properties

Zeng

Zhou

et al. 2022

Small Methods

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The poor electrode kinetics and low conductivity of the LiMn0.8Fe0.2PO4 cathode seriously impede its practical application. Here, an effective strategy of boron‐catalyzed graphitization carbon coating layer is proposed to stabilize the nanostructure and improve the kinetic properties and Li‐storage capability of LiMn0.8Fe0.2PO4 nanocrystals for rechargeable lithium‐ion batteries. The graphite‐like BC3 is derived from B‐catalyzed graphitization coating layers, which can not only effectively maintain the dynamic stability of the LiMn0.8Fe0.2PO4 nanostructure during cycling, but also plays an important role in enhancing the conductivity and Li+ migration kinetics of LiMn0.8Fe0.2PO4@B‐C. The optimized LiMn0.8Fe0.2PO4@B‐C exhibits the fastest intercalation/deintercalation kinetics, highest electrical conductivity (8.41 × 10−2 S cm−1), Li+ diffusion coefficient (6.17 × 10−12 cm2 s−1), and Li‐storage performance among three comparison samples (B‐C0, B‐C6, and B‐C9). The highly reversible properties and structural stability of LiMn0.8Fe0.2PO4@B‐C are further proved by operando XRD analysis. The B‐catalyzed graphitization carbon coating strategy is expected to be an effective pathway to overcome the inherent drawbacks of the high‐energy density LiMn0.8Fe0.2PO4 cathode and to improve other cathode materials with low‐conductivity and poor electrode kinetics for rechargeable second batteries.

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“…In addition to direct doping, B-doped carbon coating was adopted to improve rate performance. The doping on the carbon layer could be achieved either by boron alone [83] or jointly with other elements such as N or P [84,85]. The rate performance was enhanced due to improved conductivity.…”

Section: Lfpmentioning

confidence: 99%

Review of Boron Compounds in Lithium Batteries: Electrolyte, Anode, Cathode, Separator, and Battery Thermal Management System (BTMS)

Zheng¹

2022

Preprint

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Lithium batteries and an increasing focus on CO2 reduction have become an integral part of daily life and business for many people. Boron and boron compounds have been widely studied together in the history and development of lithium batteries. With a broad examination of battery components and systems but a boron-centric approach to raw materials, this review seeks to summarize past and recent studies on the following: which boron compounds are studied in lithium battery, in which parts of lithium batteries, what improvements are offered for battery performance, and what improvement mechanisms can be explained. The uniqueness of boron and its extensive application beyond batteries contextualizes the interesting similarity with studies on batteries. The paper predominantly focuses on lithium-ion batteries (LIBs) but also mentions other lithium batteries. At the end, the article aims to predict prospective trends for future studies that may lead to the successful and extensive use of boron compounds on a commercial scale.

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High-rate and ultralong cycle-life LiFePO4 nanocrystals coated by boron-doped carbon as positive electrode for lithium-ion batteries

Cited by 34 publications

References 55 publications

Lithium-Ion Batteries with High Rate Capabilities

Lithium-Ion Batteries with High Rate Capabilities

Boron‐Catalyzed Graphitization Carbon Layer Enabling LiMn_0.8Fe_0.2PO₄ Cathode Superior Kinetics and Li‐Storage Properties

Review of Boron Compounds in Lithium Batteries: Electrolyte, Anode, Cathode, Separator, and Battery Thermal Management System (BTMS)

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High-rate and ultralong cycle-life LiFePO4 nanocrystals coated by boron-doped carbon as positive electrode for lithium-ion batteries

Cited by 34 publications

References 55 publications

Lithium-Ion Batteries with High Rate Capabilities

Lithium-Ion Batteries with High Rate Capabilities

Boron‐Catalyzed Graphitization Carbon Layer Enabling LiMn0.8Fe0.2PO4 Cathode Superior Kinetics and Li‐Storage Properties

Review of Boron Compounds in Lithium Batteries: Electrolyte, Anode, Cathode, Separator, and Battery Thermal Management System (BTMS)

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Product

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About

Boron‐Catalyzed Graphitization Carbon Layer Enabling LiMn_0.8Fe_0.2PO₄ Cathode Superior Kinetics and Li‐Storage Properties