Performance optimization of freestanding MWCNT-LiFePO<sub>4</sub> sheets as cathodes for improved specific capacity of lithium-ion batteries

Susantyoko, Rahmat Agung; Alkindi, Tawaddod; Kanagaraj, Amarsingh Bhabu; An, Boo Hyun; Alshibli, Hamda; Choi, Daniel S.; AlDahmani, Sultan; Fadaq, Hamed; Almheiri, Saif

doi:10.1039/c8ra01461b

Cited by 20 publications

(6 citation statements)

References 19 publications

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“…The use of material cladding with excellent electrical conductivity can not only improve the ion migration rate and enhance the surface conductivity of the material but also inhibit the particle size overgrowth to a certain extent, shorten the Li + de-embedding path, and enhance the multiplicity performance. When the ambient temperature changes, the interfacial side reactions between the LFP cathode and the liquid organic electrolyte change accordingly, and the undesirable side reactions will lead to a serious decrease in battery capacity. − Heng et al designed an organic dual carbon coating, which can effectively suppress the undesirable side reaction at the electrode/electrolyte interface. On top of the original carbon layer, the organic carbon layer was then polymerized to form a second thin carbon layer (Figure ), which is flexible and facilitates lithium ion transport through the electrode/electrolyte interface.…”

Section: Modification Of Lfpmentioning

confidence: 99%

Review on Defects and Modification Methods of LiFePO₄ Cathode Material for Lithium-Ion Batteries

Chen

et al. 2022

Energy Fuels

131

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In recent years, domestic and international researchers have been committed to the research of lithium-ion batteries. As the key to further improving the performance of the battery, the quality of the cathode material directly affects the performance indicators of the lithium battery; thus, the cathode material occupies the core position in the lithium-ion battery. LiFePO4 is a relatively excellent material for lithium-ion batteries, which has many advantages of low cost, high capacity, and environmental friendliness. However, as a result of the low conductivity of lithium iron phosphate and the slow diffusion rate of lithium ion, the development of lithium iron phosphate in the power battery industry is restricted. As a power battery applied in real life, there is still a lot of research space in energy density, consistency, and low-temperature performance. After years of efforts, researchers continue to explore the charging and discharging principle of lithium iron phosphate, to optimize the synthesis route, and to try coating, doping modification, and other methods to improve the performance of the material. This paper analyzes and summarizes the defects of lithium iron phosphate cathode materials and modification methods and provides an outlook on the future research direction of lithium iron phosphate.

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Section: Modification Of Lfpmentioning

confidence: 99%

Review on Defects and Modification Methods of LiFePO₄ Cathode Material for Lithium-Ion Batteries

Chen

et al. 2022

Energy Fuels

131

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“…[149] Copyright 2018, Wiley-VCH. LFP/graphene secondary particles 3-4 mg cm −2 ≈142 and ≈70 mAh g −1 @ 1 and 60 C 70% @ 20 C after 1000 cycles - [152] Freestanding CNT/LFP sheets 20 mg cm −2 134 mAh g −1 @ 0.17 A g −1 ≈65% @ 0.17 A g −1 after 100 cycles - [153] 3D printing LFP electrode ≈30 mg cm −2 175 mAh g −1 @ 0.5 C ≈91% @ 0.2 C after 200 cycles 4.74 mAh cm −2 [154] Aligned LFP/carbon fiber framework 128 mg cm −2 1.26 g cm −3…”

Section: Improving Adhesion Between Active Materials and Current Collectormentioning

confidence: 99%

Commercialization‐Driven Electrodes Design for Lithium Batteries: Basic Guidance, Opportunities, and Perspectives

Cao

Liang

Zhang

et al. 2021

Small

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vehicles (HEVs), because of their high energy density and long lifetime. [1][2][3] In recent years, the ever-growing demand on electric vehicles contributes to the continuous growth of the battery market, and the energy storage devices of EVs/HEVs raise stern demands on higher energy density (>300 Wh kg −1 ) and lower cost (500 Wh kg −1 ), and the standard parameters for different electrode systems toward this high energy density goal are well summarized in the previous works. [7][8][9] In particular, the innovative battery chemistries (i.e., Li-metal battery and all-solid-state lithium battery) using Li metal as anode, exhibit much higher energy density than current lithium-ion batteries, whereas some technological issues are needed to be addressed first, such as dendrite formation suppression, industrial battery Current lithium-ion battery technology is approaching the theoretical energy density limitation, which is challenged by the increasing requirements of ever-growing energy storage market of electric vehicles, hybrid electric vehicles, and portable electronic devices. Although great progresses are made on tailoring the electrode materials from methodology to mechanism to meet the practical demands, sluggish mass transport, and charge transfer dynamics are the main bottlenecks when increasing the areal/volumetric loading multiple times to commercial level. Thus, this review presents the state-of-the-art developments on rational design of the commercialization-driven electrodes for lithium batteries. First, the basic guidance and challenges (such as electrode mechanical instability, sluggish charge diffusion, deteriorated performance, and safety concerns) on constructing the industry-required high mass loading electrodes toward commercialization are discussed. Second, the corresponding design strategies on cathode/anode electrode materials with high mass loading are proposed to overcome these challenges without compromising energy density and cycling durability, including electrode architecture, integrated configuration, interface engineering, mechanical compression, and Li metal protection. Finally, the future trends and perspectives on commercializationdriven electrodes are offered. These design principles and potential strategies are also promising to be applied in other...

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“…Transparent electric conducting mechanical and chemical resistant epoxy could be produced with magnetic molecule functionalized CNT [165]. More performing anode [166] and optimization of MWCNT/LIFePO4 cathodes have been achieved for Li-Ion battery [248]. Those are expected to be further improved with better compromise between electron conductivity and proton diffusion barrier properties [28].…”

Section: Application Developmentsmentioning

confidence: 99%

Selective Carbon Material Engineering for Improved MEMS and NEMS

Neuville¹

2019

Micromachines

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The development of micro and nano electromechanical systems and achievement of higher performances with increased quality and life time is confronted to searching and mastering of material with superior properties and quality. Those can affect many aspects of the MEMS, NEMS and MOMS design including geometric tolerances and reproducibility of many specific solid-state structures and properties. Among those: Mechanical, adhesion, thermal and chemical stability, electrical and heat conductance, optical, optoelectronic and semiconducting properties, porosity, bulk and surface properties. They can be affected by different kinds of phase transformations and degrading, which greatly depends on the conditions of use and the way the materials have been selected, elaborated, modified and assembled. Distribution of these properties cover several orders of magnitude and depend on the design, actually achieved structure, type and number of defects. It is then essential to be well aware about all these, and to distinguish and characterize all features that are able to affect the results. For this achievement, we point out and discuss the necessity to take into account several recently revisited fundamentals on carbon atomic rearrangement and revised carbon Raman spectroscopy characterizing in addition to several other aspects we will briefly describe. Correctly selected and implemented, these carbon materials can then open new routes for many new and more performing microsystems including improved energy generation, storage and conversion, 2D superconductivity, light switches, light pipes and quantum devices and with new improved sensor and mechanical functions and biomedical applications.

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Performance optimization of freestanding MWCNT-LiFePO₄ sheets as cathodes for improved specific capacity of lithium-ion batteries

Cited by 20 publications

References 19 publications

Review on Defects and Modification Methods of LiFePO₄ Cathode Material for Lithium-Ion Batteries

Review on Defects and Modification Methods of LiFePO₄ Cathode Material for Lithium-Ion Batteries

Commercialization‐Driven Electrodes Design for Lithium Batteries: Basic Guidance, Opportunities, and Perspectives

Selective Carbon Material Engineering for Improved MEMS and NEMS

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Performance optimization of freestanding MWCNT-LiFePO4 sheets as cathodes for improved specific capacity of lithium-ion batteries

Cited by 20 publications

References 19 publications

Review on Defects and Modification Methods of LiFePO4 Cathode Material for Lithium-Ion Batteries

Review on Defects and Modification Methods of LiFePO4 Cathode Material for Lithium-Ion Batteries

Commercialization‐Driven Electrodes Design for Lithium Batteries: Basic Guidance, Opportunities, and Perspectives

Selective Carbon Material Engineering for Improved MEMS and NEMS

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Product

Resources

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Performance optimization of freestanding MWCNT-LiFePO₄ sheets as cathodes for improved specific capacity of lithium-ion batteries

Review on Defects and Modification Methods of LiFePO₄ Cathode Material for Lithium-Ion Batteries

Review on Defects and Modification Methods of LiFePO₄ Cathode Material for Lithium-Ion Batteries