Effects of carbon coating on LiNi0.5Mn1.5O4 cathode material for lithium ion batteries using an atmospheric microwave plasma torch

Ku, Dong Jin; Lee, Jae Ho; Lee, Sang Ju; Koo, Min; Lee, Bong Ju

doi:10.1016/j.surfcoat.2018.09.082

Cited by 15 publications

(8 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ôотокопіювання дозволено тільки відповідно до ліцензії 1042 Д. О. ТРЕТЬЯÊОÂ шення потужности та ресурсу циклування наявних типів ЛЙА з метою відповідности сучасним вимогам. Останні дослідження [1][2][3][4][5][6][7][8][9][10] показують, що поліпшення властивостей ЛЙА тісно пов'язане з використанням нанотехнологій в області катодних та анодних матеріялів.…”

Section: вступunclassified

“…Âуглецеве покриття виступає в ролі розподіленого колектору струму та забезпечує безперервний шлях для швидкого переміщення електронів у структурі електроди. Таким чином, контактний опір між сусідніми частинками істотно понижується [10]. Тонкі вуглецеві покриття, як правило, є проникними для йонів Літію і не понижують швидкість їхньої диôузії в активний матеріял.…”

Section: катодні матеріялиunclassified

See 1 more Smart Citation

Modern Directions of Development of Lithium-Ion Battery Technology

2020

Nanosist. Nanomater. Nanotehnol.

View full text Add to dashboard Cite

Представлено основні напрями розвитку літій-йонних перезарядних систем накопичення енергії. Показано спроби вдосконалення катодних та анодних матеріялів. Зазначено переваги та недоліки наноструктурованих активних матеріялів і спроби використання покриттів різних типів. Розглянуто напрями вдосконалення рідких, полімерних і твердих електролітів. Описано найпоширеніші технології переробки літій-йонних акумуляторів.The main directions of development of the lithium-ion rechargeable energy storage systems are presented. Attempts to improve the cathode and anode materials are shown. Advantages and disadvantages of nanostructured active materials and attempts to use coatings of various types are indicated. The directions of improvement of liquid, polymer, and solid electrolytes are considered. The most common technologies for processing the lithium-ion batteries are described.

show abstract

Section: вступunclassified

Section: катодні матеріялиunclassified

Modern Directions of Development of Lithium-Ion Battery Technology

2020

Nanosist. Nanomater. Nanotehnol.

View full text Add to dashboard Cite

show abstract

“…However, a too-thick carbon coating could block the transmission channels of lithium ions, reducing the specific energy of the material [ 33 ]. At the same time, carbon coating generally requires a high-temperature treatment process in an inert gas, especially for organic carbon sources (glucose, acetylene gas [ 34 ], etc. ), but higher temperatures pose a risk of side reactions, such as a reduction in metal oxide in the cathode material, which is caused by carbon [ 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Electrochemical Performance of High Voltage LiNi0.5Mn1.5O4 Cathode Materials by Surface Modification with Li1.3Al0.3Ti1.7(PO4)3/C

et al. 2023

View full text Add to dashboard Cite

A novel method for surface modification of LiNi0.5Mn1.5O4 (LNMO) was proposed, in which a hybrid layer combined by Li1.3Al0.3Ti1.7(PO4)3 (LATP) and carbon (C) composite on LNMO material were connected by lithium iodide. Structure and morphology analyses illustrated that a higher contact area of active substances was achieved by the LATP/C composite layer without changing the original crystal structure of LNMO. XPS analysis proved that I− promoted the reduction of trace Mn4+, resulting in a higher ion conductivity. Galvanostatic charge–discharge tests exhibited the capacity of the LNMO with 5% LATP/C improved with 35.83% at 25 °C and 95.77% at 50 °C, respectively, compared with the bare after 100 cycles, implying the modification of high-temperature deterioration. EIS results demonstrated that one order of magnitude of improvement of the lithium-ion diffusion coefficient of LATP/C-LNMO was achieved (3.04 × 10−11 S cm−1). In conclusion, the effective low-temperature modification strategy improved the ionic and electronic conductivities of the cathode and suppressed the side reactions of high-temperature treatment.

show abstract

“…Therefore, the carbon coating offers a unique solution that combines all of the desired advantages. Several carbonaceous materials are reported in the literature that include camphoric carbon, graphene oxide, reduced graphene oxide, carbon nanotubes, heteroatom-doped carbons, sucrose-derived hard carbons, and conductive polymers such as polythiophene, polyimide, polyacrylonitrile, PANI, PEDOT, and so forth. – The surface protection and enhancement in electronic conductivity are successfully achieved by applying such coatings. However, the surface heterogeneity, doped heteroatoms, and functional groups catalyze the electrolyte decomposition .…”

Section: Introductionmentioning

confidence: 99%

Soft Carbon Integration for Prolonging the Cycle Life of LiNi_0.5Mn_1.5O₄ Cathode

Ghosh,

Mahapatra,

Bhowmik

et al. 2023

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

LiNi0.5Mn1.5O4 (LNMO) has the advantages of high voltage output (4.7 V), fast charging capability, and better thermal stability, which make it suitable for future applications in lithium-ion batteries. However, the limitation in cycle life due to the electrolyte and the structural instability during high-voltage cycling to 5 V is a major drawback. Further, the decomposition of the electrolyte on the highly reactive surface of LNMO plays a critical role in catalyzing the structural disintegration. The issue can be mitigated via the surface carbon coating on LNMO. Herein, a method to integrate soft carbon on LNMO is reported, which bypasses the drawback of lattice oxygen loss during the conventional carbon coating on metal oxides. The soft carbon derived from the pitch precursor with its unique blend of physical properties renders the LNMO surface less susceptible to electrolyte attack. As a result, capacity retention enhances by 25.6%, and the coulombic efficiency improves by 1.5% over 500 cycles in a carbonate-based 1 M LiPF6 electrolyte. The soft carbon regulates the interfacial composition balanced in LiF/Li x PO y F z and reduces the growth of the charger-transfer resistance. Moreover, the strategy also decreases the Mn dissolution by 18%.

show abstract

Effects of carbon coating on LiNi0.5Mn1.5O4 cathode material for lithium ion batteries using an atmospheric microwave plasma torch

Cited by 15 publications

References 22 publications

Modern Directions of Development of Lithium-Ion Battery Technology

Modern Directions of Development of Lithium-Ion Battery Technology

Enhancing the Electrochemical Performance of High Voltage LiNi0.5Mn1.5O4 Cathode Materials by Surface Modification with Li1.3Al0.3Ti1.7(PO4)3/C

Soft Carbon Integration for Prolonging the Cycle Life of LiNi_0.5Mn_1.5O₄ Cathode

Contact Info

Product

Resources

About

Effects of carbon coating on LiNi0.5Mn1.5O4 cathode material for lithium ion batteries using an atmospheric microwave plasma torch

Cited by 15 publications

References 22 publications

Modern Directions of Development of Lithium-Ion Battery Technology

Modern Directions of Development of Lithium-Ion Battery Technology

Enhancing the Electrochemical Performance of High Voltage LiNi0.5Mn1.5O4 Cathode Materials by Surface Modification with Li1.3Al0.3Ti1.7(PO4)3/C

Soft Carbon Integration for Prolonging the Cycle Life of LiNi0.5Mn1.5O4 Cathode

Contact Info

Product

Resources

About

Soft Carbon Integration for Prolonging the Cycle Life of LiNi_0.5Mn_1.5O₄ Cathode