Influence of Binder Coverage on Interfacial Chemistry of Thin Film LiNi0.6Mn 0.2Co0.2O2 Cathodes

Phillip, Nathan D.; Daniel, Claus; Veith, Gabriel M.

doi:10.1149/1945-7111/ab78fc

Title: Influence of Binder Coverage on Interfacial Chemistry of Thin Film LiNi_0.6Mn _0.2Co_0.2O₂ Cathodes

Abstract

In this work, we explore the influence of binder coverage and chemistry on the interfacial properties of the textured Ni-rich cathode LiNi_0.6Mn_0.2Co_0.2O₂. We find that the formation of the cathode/electrolyte interphase (CEI) composition varies significantly for cathodes coated with either poly(vinylene fluoride) (PVDF), carboxymethyl cellulose (CMC), or lithium polyacrylate (LiPAA) after cycling to high upper cutoff voltages (4.5 V vs Li/Li). The PVDF-coated samples had a thinner CEI and twice the relative concentration of LiF and Li₂CO₃ to Li_xPO_yF_z species in the CEI compared to the uncoated sample. This correlated with significantly lower interfacial impedance (285 vs ~1700 Ohm-cm²) and improved capacity retention between cycles of the PVDF-coated samples compared to the other binder compositions and the uncoated sample. CMC-coated samples performed worst, with a CEI comprised of greater amounts of Li_xPO_yF_z. In addition, we find the choice of binder results in the selective protection or promotion of electrolyte reactions at the (104) surface of the 622 cathode. This suggests that the choice of binder can impact the surface chemistry and performance of high voltage cathodes and supports an avenue for interest in multifunctional binders for stabilizing the CEI.

Authors:

; Daniel, Claus;

Publication Date:: Mon Mar 02 00:00:00 EST 2020

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

OSTI Identifier:: 1602334

Alternate Identifier(s):: OSTI ID: 1607055

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Published Article

Journal Name:: Journal of the Electrochemical Society (Online)

Additional Journal Information:: Journal Name: Journal of the Electrochemical Society (Online) Journal Volume: 167 Journal Issue: 4; Journal ID: ISSN 1945-7111

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Phillip, Nathan D., Daniel, Claus, and Veith, Gabriel M. Influence of Binder Coverage on Interfacial Chemistry of Thin Film LiNi0.6Mn 0.2Co0.2O2 Cathodes.  United States: N. p., 2020. 
Web.  doi:10.1149/1945-7111/ab78fc.

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                    Phillip, Nathan D., Daniel, Claus, & Veith, Gabriel M. Influence of Binder Coverage on Interfacial Chemistry of Thin Film LiNi0.6Mn 0.2Co0.2O2 Cathodes.  United States.  https://doi.org/10.1149/1945-7111/ab78fc

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                    Phillip, Nathan D., Daniel, Claus, and Veith, Gabriel M. Mon .  
"Influence of Binder Coverage on Interfacial Chemistry of Thin Film LiNi0.6Mn 0.2Co0.2O2 Cathodes".  United States.  https://doi.org/10.1149/1945-7111/ab78fc.

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@article{osti_1602334,

  title        = {Influence of Binder Coverage on Interfacial Chemistry of Thin Film LiNi0.6Mn 0.2Co0.2O2 Cathodes},

  author       = {Phillip, Nathan D. and Daniel, Claus and Veith, Gabriel M.},

  abstractNote = {In this work, we explore the influence of binder coverage and chemistry on the interfacial properties of the textured Ni-rich cathode LiNi0.6Mn0.2Co0.2O2. We find that the formation of the cathode/electrolyte interphase (CEI) composition varies significantly for cathodes coated with either poly(vinylene fluoride) (PVDF), carboxymethyl cellulose (CMC), or lithium polyacrylate (LiPAA) after cycling to high upper cutoff voltages (4.5 V vs Li/Li). The PVDF-coated samples had a thinner CEI and twice the relative concentration of LiF and Li2CO3 to LixPOyFz species in the CEI compared to the uncoated sample. This correlated with significantly lower interfacial impedance (285 vs ~1700 Ohm-cm2) and improved capacity retention between cycles of the PVDF-coated samples compared to the other binder compositions and the uncoated sample. CMC-coated samples performed worst, with a CEI comprised of greater amounts of LixPOyFz. In addition, we find the choice of binder results in the selective protection or promotion of electrolyte reactions at the (104) surface of the 622 cathode. This suggests that the choice of binder can impact the surface chemistry and performance of high voltage cathodes and supports an avenue for interest in multifunctional binders for stabilizing the CEI.},

  doi          = {10.1149/1945-7111/ab78fc},

  journal      = {Journal of the Electrochemical Society (Online)},

  number       = 4,

  volume       = 167,

  place        = {United States},

  year         = {Mon Mar 02 00:00:00 EST 2020},

  month        = {Mon Mar 02 00:00:00 EST 2020}

}

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Surface Modification for Suppressing Interfacial Parasitic Reactions of a Nickel-Rich Lithium-Ion Cathode
journal, March 2019

Processing of water-based LiNi1/3Mn1/3Co1/3O2 pastes for manufacturing lithium ion battery cathodes
journal, December 2014

Two-dimensional ion chromatography for the separation of ionic organophosphates generated in thermally decomposed lithium hexafluorophosphate-based lithium ion battery electrolytes
journal, August 2015

Singlet oxygen evolution from layered transition metal oxide cathode materials and its implications for lithium-ion batteries
journal, October 2018

Ab Initio Modeling of Electrolyte Molecule Ethylene Carbonate Decomposition Reaction on Li(Ni,Mn,Co)O ₂ Cathode Surface
journal, June 2017

Particles and Polymer Binder Interaction: A Controlling Factor in Lithium-Ion Electrode Performance
journal, January 2012

The effect of different binders on electrochemical properties of LiNi1/3Mn1/3Co1/3O2 cathode material in lithium ion batteries
journal, March 2013

In Situ Determination of the Liquid/Solid Interface Thickness and Composition for the Li Ion Cathode LiMn _1.5 Ni _0.5 O ₄
journal, October 2014

Temperature Dependence of Oxygen Release from LiNi _0.6 Mn _0.2 Co _0.2 O ₂ (NMC622) Cathode Materials for Li-Ion Batteries
journal, January 2018

Composition and Growth Behavior of the Surface and Electrolyte Decomposition Layer of/on a Commercial Lithium Ion Battery Li _x Ni _1/3 Mn _1/3 Co _1/3 O ₂ Cathode Determined by Sputter Depth Profile X-ray Photoelectron Spectroscopy
journal, December 2013

SNIFTIRS investigation of the oxidative decomposition of organic-carbonate-based electrolytes for lithium-ion cells
journal, July 2000

Lithium Polyacrylate (LiPAA) as an Advanced Binder and a Passivating Agent for High-Voltage Li-Ion Batteries
journal, September 2015

Aging of LiNi1/3Mn1/3Co1/3O2 cathode material upon exposure to H2O
journal, June 2011

Simultaneous Measurements and Modeling of the Electrochemical Impedance and the Cyclic Voltammetric Characteristics of Graphite Electrodes Doped with Lithium
journal, June 1997

A carbonate-free, sulfone-based electrolyte for high-voltage Li-ion batteries
journal, May 2018

Ion chromatographic determination of hydrolysis products of hexafluorophosphate salts in aqueous solution
journal, February 2012

Singlet Oxygen Reactivity with Carbonate Solvents Used for Li-Ion Battery Electrolytes
journal, October 2018

Differentiating Contributions to “Ion Transfer” Barrier from Interphasial Resistance and Li ⁺ Desolvation at Electrolyte/Graphite Interface
journal, July 2010

Probing Surface Chemistry Changes Using LiCoO ₂ -only Electrodes in Li-Ion Batteries
journal, January 2018

Chemical versus Electrochemical Electrolyte Oxidation on NMC111, NMC622, NMC811, LNMO, and Conductive Carbon
journal, September 2017

Structural Degradation of High Voltage Lithium Nickel Manganese Cobalt Oxide (NMC) Cathodes in Solid-State Batteries and Implications for Next Generation Energy Storage
journal, January 2020

What makes lithium substituted polyacrylic acid a better binder than polyacrylic acid for silicon-graphite composite anodes?
journal, April 2018

Depth-Dependent Redox Behavior of LiNi _0.6 Mn _0.2 Co _0.2 O ₂
journal, January 2018

Perspective—Fluorinating Interphases
journal, December 2018

Solid‐State Electrochemical Kinetics of Li‐Ion Intercalation into Li_1 − xCoO₂: Simultaneous Application of Electroanalytical Techniques SSCV, PITT, and EIS
journal, January 1999

Nickel, Manganese, and Cobalt Dissolution from Ni-Rich NMC and Their Effects on NMC622-Graphite Cells
journal, January 2019

Oxygen Release and Its Effect on the Cycling Stability of LiNi _x Mn _y Co _z O ₂ (NMC) Cathode Materials for Li-Ion Batteries
journal, January 2017

Non-flammable LiNi0.8Co0.1Mn0.1O2 cathode via functional binder; stabilizing high-voltage interface and performance for safer and high-energy lithium rechargeable batteries
journal, September 2019

Thermal Decomposition of LiPF[sub 6]-Based Electrolytes for Lithium-Ion Batteries
journal, January 2005

In situ FT-IR measurement for electrochemical oxidation of electrolyte with ethylene carbonate and diethyl carbonate on cathode active material used in rechargeable lithium batteries
journal, August 2005

Decomposition of LiPF ₆ in High Energy Lithium-Ion Batteries Studied with Online Electrochemical Mass Spectrometry
journal, January 2016

NiO as a peculiar support for metal nanoparticles in polyols oxidation
journal, January 2013