F127-assisted synthesis of LiNi0.5Co0.2Mn0.3O1.99F0.01 as a high rate and long lifespan cathode material for lithium-ion batteries

Li, Liansheng; Zhang, Zhen; Fu, Sihan; Liu, Zongze

doi:10.1016/j.apsusc.2019.01.160

Cited by 26 publications

(7 citation statements)

References 34 publications

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“…F127 was proved to promote the growth of crystal and thus improved the specific capacity of the cathode while fluorine incorporation could partially reduce Ni 3+ (ionic radius: 5.6 Å) to Ni 2+ (ionic radius: 6.9 Å) and the corresponding increase in interlayer spacing facilitated lithium ion migration and thus led to superior rate capability (∼125 mAh g −1 at 10 C, 1 C=160 mA g −1 ). The lithium ion diffusion coefficient (estimated based on CV curves) of F127‐NCMF was one order of magnitude higher than that of pristine lithium nickel manganese cobalt oxide (10 −11 versus 10 −12 cm 2 s −1 ) …”

Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 90%

“…Copyright 2019 American Chemical Society. (c) Schematic diagram illustrating the synthesis of F127‐Ni 0.5 Co 0.2 Mn 0.3 CO 3 (PEO: polyoxyethylene; PPO: polyoxypropylene) . Reproduced with permission from Ref.…”

Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 99%

“…In order to fulfil the increasing demand for cathode material with excellent electrochemical properties, various modification approaches are often combined together to improve the performance of lithium nickel manganese cobalt oxides . As an example, F127‐assisted fluorine doped lithium nickel manganese cobalt oxide (F127‐NCMF) was synthesised by a facile co‐precipitation procedure developed by Li et al . In detail, an aqueous solution of F127 (a type of non‐ionic surfactant) and Na 2 CO 3 was added into the metal salt solution containing Ni(CH 3 COOH) 2 ⋅ 4H 2 O, Co(CH 3 COOH) 2 ⋅ 4H 2 O and Mn(CH 3 COOH) 2 ⋅ 4H 2 O, which was then followed by a series of cleaning steps (filtering, washing and drying) to produce the precursor (F127‐Ni 0.5 Co 0.2 Mn 0.3 CO 3 ), as shown in Figure c.…”

Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 99%

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Recent Developments of Nanomaterials and Nanostructures for High‐Rate Lithium Ion Batteries

Zhou

et al. 2020

ChemSusChem

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techniques, based on either electrochemical or radiology methodologies, are covered as well. In addition, state-of-the-art research findings are provided to illustrate the effect of nanomaterials and nanostructures in promoting the rate performance of lithium ion batteries. Finally, several challenges and shortcomings of applying nanotechnology in fabricating highrate lithium ion batteries are summarised.

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Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 90%

Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 99%

Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 99%

See 1 more Smart Citation

Recent Developments of Nanomaterials and Nanostructures for High‐Rate Lithium Ion Batteries

Zhou

et al. 2020

ChemSusChem

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“…So the ratio of doping elements should be controlled strictly. Li et al92 prepared LiNi 0.5 Co 0.2 Mn 0.3 O 1.99 F 0.01 by a F127‐assisted synthetic coprecipitation method. They found F127 surfactant can improve the crystallinity of LiNi 0.5 Co 0.2 Mn 0.3 O 2 .…”

Section: Fast Charging Capability Of Ni‐rich Ncmmentioning

confidence: 99%

Ni‐Rich/Co‐Poor Layered Cathode for Automotive Li‐Ion Batteries: Promises and Challenges

Wang

Ding

Deng

et al. 2020

Advanced Energy Materials

300

218

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To pursue a higher energy density (>300 Wh kg−1 at the cell level) and a lower cost (<$125 kWh−1 expected at 2022) of Li‐ion batteries for making electric vehicles (EVs) long range and cost‐competitive with internal combustion engine vehicles, developing Ni‐rich/Co‐poor layered cathode (LiNi1−x−yCoxMnyO2, x+y ≤ 0.2) is currently one of the most promising strategies because high Ni content is beneficial to high capacity (>200 mAh g−1) while low Co content is favorable to minimize battery cost. Unfortunately, Ni‐rich cathodes suffer from limited structure stability and electrode/electrolyte interface stability in the charged state, leading to electrode degradation and poor cycling performance. To address these problems, various strategies have been employed such as doping, structural optimization design (e.g., core–shell structure, concentration‐gradient structure, etc.), and surface coating. In this review, five key aspects of Ni‐rich/Co‐poor layered cathode materials are explored: energy density, fast charge capability, service life including cycling life and calendar life, cost and element resources, and safety. This enables a comprehensive analysis of current research advances and challenges from the perspective of both academy and industry to help facilitate practical applications for EVs in the future.

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“…29 Researchers have conducted a lot of research on improving the mobility of lithium-ion and electrons in cathode materials of LIBs. The study finds that the main strategies to address these two problems include the synthesis of nanostructures, [30][31][32][33] the coating of conductive carbon, [34][35][36] modification of surface coatings, 37,38 doping of other ions, [39][40][41][42] synergistic effects of the above mechanisms [43][44][45] and other new methods. 46,47 Here, we introduce the three major effects that limit the development for fast charging technology of LIBs and their degradation mechanisms.…”

mentioning

confidence: 99%

Review—Key Strategies to Increase the Rate Capacity of Cathode Materials for High Power Lithium-Ion Batteries

Sun

Guo

et al. 2020

J. Electrochem. Soc.

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Realizing ultra-fast charge and discharge of lithium-ion batteries (LIBs) is one of the effective ways to promote the popularity of electric vehicles, solve energy and environmental problems. A lot of studies have shown that low conductivity and low lithium-ion diffusivity are the major limiting factors for the rate performance of cathode. However, there is no systematic review on the methods to improve the rate performance of cathode for LIBs. Hence this review ground-breakingly summarizes a series of key strategies and their electrochemical mechanisms to increase the rate capacity of cathode materials. The limiting factors for the development of LIBs fast charging are introduced. It analyzes the working mechanisms of the nanostructure and micronanostructures. The influences of carbon coating with different carbon sources are introduced and compared in detail. The specific mechanisms and research results of surface coating modification and doping strategies in LiFePO 4 , layered structure cathode, and spinel structure cathode are reviewed. Moreover, innovative approaches such as spinel-layered composites preparation, structuralgradient design, and photo-accelerated fast charging are also provided. Finally, some existing challenges and development directions in the future are discussed.

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F127-assisted synthesis of LiNi0.5Co0.2Mn0.3O1.99F0.01 as a high rate and long lifespan cathode material for lithium-ion batteries

Cited by 26 publications

References 34 publications

Recent Developments of Nanomaterials and Nanostructures for High‐Rate Lithium Ion Batteries

Recent Developments of Nanomaterials and Nanostructures for High‐Rate Lithium Ion Batteries

Ni‐Rich/Co‐Poor Layered Cathode for Automotive Li‐Ion Batteries: Promises and Challenges

Review—Key Strategies to Increase the Rate Capacity of Cathode Materials for High Power Lithium-Ion Batteries

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