The Effect of Surface Coating on LiNi0.6Co0.1Mn0.3O2 Cathode Material for Lithium Secondary Battery by PEDOT-PEG Block Copolymer

Yoo, Gi-Won; Jang, Byeong-Chan; Kim, Cheong; Jong‐Tae, Son

doi:10.1166/sam.2017.2573

Cited by 7 publications

(3 citation statements)

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“…To mitigate any adverse effects on ionic and electronic conductivity, which could lead to increased cathode interface impedance after coating, researchers have developed surface layers with conductive properties. These include conductive polymers such as polyaniline (PANI) [106][107][108], poly(3,4-ethylenedioxythiophene) (PEDOT) [109,110], polypyrrole (PPy) [111,112], etc and fast ion-conductive materials like lithium phosphorous oxynitride (LiPON) [113], and Li 3 PO 4 [114][115][116][117].…”

Section: Element Doping and Protective Layer Coatingsmentioning

confidence: 99%

Degradation mechanisms and modification strategies of nickel-rich NCM cathode in lithium-ion batteries

Li,

Liu,

Liang

et al. 2024

Mater. Res. Express

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Ni-rich Lithium Nickel Cobalt Manganese Oxide (NCM) cathode materials have garnered attention for their high specific capacity, but they grapple with issues of cycling stability, thermal performance, and safety. This concise yet comprehensive review embarks on an exploration, commencing with an examination of fundamental characteristics, including crystallographic structures and electrochemical properties. It delves into the intricate failure mechanisms contributing to capacity degradation and thermal instability. The review places emphasis on major material-focused modification techniques, encompassing surface coatings and multifunctional additives, all scrutinized for their potential to enhance both performance and safety. Furthermore, it spotlights pivotal research domains, notably novel synthesis methods, positioned to reshape the landscape of high-nickel NCM technology. The review also emphasizes future development directions, aiming for simplified and cost-effective methodologies to tackle the complexities of nickel-rich cathodes. Ultimately, this review offers a forward-looking analysis, envisioning a future marked by safer, higher-capacity lithium-ion batteries, underscoring an enduring commitment to scientific and technological progress.

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Section: Element Doping and Protective Layer Coatingsmentioning

confidence: 99%

Degradation mechanisms and modification strategies of nickel-rich NCM cathode in lithium-ion batteries

Li,

Liu,

Liang

et al. 2024

Mater. Res. Express

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“…The electrodes prepared with added acetylene black and PVDF as a binder kept 95.7% of their initial capacitance after 100 cycles. This copolymer has also been coated on LiNi 0.6 Co 0.1 Mn 0.3 O 2 for the positive electrode in a lithiumion battery (Yoo et al 2017). Enhanced electrode kinetics and improved stability (3% capacitance loss during 50 cycles) were attributed to the coating.…”

Section: Auxiliary Components and Functionsmentioning

confidence: 99%

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

Kondratiev

Holze

2021

Chem. Pap.

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Intrinsically conducting polymers and their copolymers and composites with redox-active organic molecules prepared by chemical as well as electrochemical polymerization may yield active masses without additional binder and conducting agents for secondary battery electrodes possibly utilizing the advantageous properties of both constituents are discussed. Beyond these possibilities these polymers have found many applications and functions for various further purposes in secondary batteries, as binders, as protective coatings limiting active material corrosion, unwanted dissolution of active mass ingredients or migration of electrode reaction participants. Selected highlights from this rapidly developing and very diverse field are presented. Possible developments and future directions are outlined.

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“…Meyer et al reported that the Li 3 PO 4 coating layer can not only demonstrate good chemical corrosion resistance but also provide extra Li + migration channels . Moreover, some conducting polymers, such as poly(3,4-ethylenedioxythiophene) (PEDOT), polypyrrole (PPy), and polyaniline (PANI), can also be regarded as effective choices for the surface/interface modification of the NCM811 cathode. − In general, these strategies make great contributions to improving the electrochemical properties of the NCM811 cathode. However, it is difficult for the inorganic coating layer to be uniform due to its non-flexibility, which cannot tolerate large volume changes during the repeated charging/discharging processes, while the organic coating layer easily results in bad rate capability because of its relatively poor electronic and ionic conductivity.…”

Section: Introductionmentioning

confidence: 99%

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances

Wang

Lin

et al. 2023

ACS Appl. Energy Mater.

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Although the LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) material has a high energy density, poor cycling stability and inferior rate capability restrict its commercialization. Surface modification is an effective strategy to improve the electrochemical performance of the NCM811 cathode. Herein, terephthalic acid (TPA) is introduced as a surface-modifying material to functionalize the NCM811 because of its multiple advantages, such as reducing the surface alkalinity and activity of the NCM811, providing a vast electronic channel and Li + diffusion pathway, and inhibiting irreversible phase transition. As proof, the asoptimized 1TPA@NCM811 cathode delivers an enhanced initial discharge specific capacity over 216 mA h g −1 , an optimized rate capability up to 5C, and a reduced irreversible capacity loss after 100 charge−discharge cycling times at 1C. Therefore, this work provides a potential pathway to effectively boost the electrochemical performance of the NCM811 cathode for its practical application.

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The Effect of Surface Coating on LiNi_0.6Co_0.1Mn_0.3O₂ Cathode Material for Lithium Secondary Battery by PEDOT-PEG Block Copolymer

Cited by 7 publications

References 0 publications

Degradation mechanisms and modification strategies of nickel-rich NCM cathode in lithium-ion batteries

Degradation mechanisms and modification strategies of nickel-rich NCM cathode in lithium-ion batteries

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances

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The Effect of Surface Coating on LiNi0.6Co0.1Mn0.3O2 Cathode Material for Lithium Secondary Battery by PEDOT-PEG Block Copolymer

Cited by 7 publications

References 0 publications

Degradation mechanisms and modification strategies of nickel-rich NCM cathode in lithium-ion batteries

Degradation mechanisms and modification strategies of nickel-rich NCM cathode in lithium-ion batteries

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi0.8Co0.1Mn0.1O2 Cathode with Enhanced Electrochemical Performances

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Product

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The Effect of Surface Coating on LiNi_0.6Co_0.1Mn_0.3O₂ Cathode Material for Lithium Secondary Battery by PEDOT-PEG Block Copolymer

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances