Influence of Binder Coverage on Interfacial Chemistry of Thin Film LiNi0.6Mn0.2Co0.2O2 Cathodes
Source abstract
Abstract
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.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. Two-dimensional ion chromatography for the separation of ionic organophosphates generated in thermally decomposed lithium hexafluorophosphate-based lithium ion battery electrolytes10.1016/j.chroma.2015.07.054 ↗
2. Theoretical investigations on oxidative stability of solvents and oxidative decomposition mechanism of ethylene carbonate for lithium ion battery use10.1021/jp9074064 ↗
3. Composition and growth behavior of the surface and electrolyte decomposition layer of/on a commercial lithium ion battery LixNi1/3Mn1/3Co1/3O2 cathode determined by sputter depth profile X-ray photoelectron spectroscopy10.1021/la403276p ↗
4. Surface modification for suppressing interfacial parasitic reactions of nickel-rich lithium-ion cathode10.1021/acs.chemmater.8b04200 ↗
5. Nickel, manganese, and cobalt dissolution from Ni-rich nmc and their effects on nmc622-graphite cells10.1149/2.1151902jes ↗
6. Temperature dependence of oxygen release from LiNi0.6Mn0.2Co0.2O2 (NMC622) cathode materials for li-ion batteries10.1149/2.1261811jes ↗
7. Depth-dependent redox behavior of LiNi0.6Mn0.2Co0.2O210.1149/2.1021803jes ↗
8. Singlet oxygen evolution from layered transition metal oxide cathode materials and its implications for lithium-ion batteries10.1016/j.mattod.2018.03.037 ↗
9. Oxygen release and its effect on the cycling stability of LiNixMnyCozO2 (NMC) cathode materials for Li-ion batteries10.1149/2.0021707jes ↗
10. Singlet oxygen reactivity with carbonate solvents used for li-ion battery electrolytes10.1021/acs.jpca.8b08079 ↗
11. Decomposition of LiPF6 in high energy lithium-ion batteries studied with online electrochemical mass spectrometry10.1149/2.0981606jes ↗
12. Non-flammable LiNi0.8Co0.1Mn0.1O2 cathode via functional binder; stabilizing 4.4 V interface and performance for safer and high-energy lithium rechargeable batteries10.1016/j.electacta.2019.06.034 ↗
13. Lithium polyacrylate (LiPAA) as an advanced binder and a passivating agent for high-voltage li-ion batteries10.1002/aenm.201501008 ↗
14. The effect of different binders on electrochemical properties of LiNi1/3Mn1/3Co1/3O2 cathode material in lithium ion batteries10.1016/j.jpowsour.2012.10.033 ↗
15. Synthesis of Ni-rich thin film cathode as model system for lithium ion batteries10.1021/acsaem.8b01982 ↗
16. What makes lithium substituted polyacrylic acid a better binder than polyacrylic acid for silicon-graphite composite anodes?10.1016/j.jpowsour.2018.02.085 ↗
17. Daniel · 2012
18. Optimization of acetylene black conductive additive and PVDF composition for high-power rechargeable lithium-ion cells10.1149/1.2792293 ↗
19. Probing surface chemistry changes using LiCoO2-only electrodes in Li-ion batteries10.1149/2.0431807jes ↗
20. Quantitative electron spectroscopy of surfaces: A standard data base for electron inelastic mean free paths in solids10.1002/sia.740010103 ↗
21. Influence of electrolyte additives on the cathode electrolyte interphase (CEI) formation on LiNi1/3Mn1/3Co1/3O2 in half cells with Li metal counter electrode10.1016/j.jpowsour.2016.08.023 ↗
22. Thermal decomposition of LiPF6-based electrolytes for lithium-ion batteries10.1149/1.2083267 ↗
23. Processing of water-based LiNi1/3Mn1/3Co1/3O2 pastes for manufacturing lithium ion battery cathodes10.1007/s12034-014-0733-7 ↗
24. Aging of LiNi1/3Mn1/3Co1/3O2 cathode material upon exposure to H2O10.1016/j.jpowsour.2011.02.009 ↗
25. NiO as a peculiar support for metal nanoparticles in polyols oxidation10.1039/C2CY20370G ↗
26. Bo · Thin-film and bulk investigations of LiCoBO3 as a Li-ion battery cathode. · 2014 · 6 · 10840
27. Chemical versus Electrochemical Electrolyte Oxidation on NMC111, NMC622, NMC811, LNMO, and Conductive Carbon10.1021/acs.jpclett.7b01927 ↗
28. Charge heterogeneity and surface chemistry in polycrystalline cathode materials10.1016/j.joule.2017.12.008 ↗
29. Simultaneous measurements and modeling of the electrochemical impedance and the cyclic voltammetric characteristics of graphite electrodes doped with lithium10.1021/jp9701909 ↗
30. Solid‐state electrochemical kinetics of Li‐ion intercalation into Li1−xCoO2: simultaneous application of electroanalytical techniques SSCV, PITT, and EIS10.1149/1.1391759 ↗
31. Charge-transfer’ process at graphite/electrolyte interface and the solvation sheath structure of Li+ in nonaqueous electrolytes10.1149/1.2409866 ↗
32. Differentiating contributions to ‘ion transfer’ barrier from interphasial resistance and Li+ desolvation at electrolyte/graphite interface10.1021/la1009994 ↗
33. SNIFTIRS investigation of the oxidative decomposition of organic-carbonate-based electrolytes for lithium-ion cells10.1016/S0013-4686(00)00480-1 ↗
34. In situ FT-IR measurement for electrochemical oxidation of electrolyte with ethylene carbonate and diethyl carbonate on cathode active material used in rechargeable lithium batteries10.1016/j.jpowsour.2005.03.011 ↗
35. In situ determination of the liquid/solid interface thickness and composition for the Li ion cathode LiMn(1.5)Ni(0.5)O410.1021/am5032055 ↗
36. Perspective—fluorinating interphases10.1149/2.0281903jes ↗
37. A carbonate-free, sulfone-based electrolyte for high-voltage Li-ion batteries10.1016/j.mattod.2018.02.005 ↗
38. An effective method to reduce residual lithium compounds on Ni-rich Li [Ni 0.6 Co 0.2 Mn 0.2] O2 active material using a phosphoric acid derived Li3 PO4 nanolayer10.1007/s12274-014-0631-8 ↗
39. Ion chromatographic determination of hydrolysis products of hexafluorophosphate salts in aqueous solution10.1016/j.aca.2011.11.056 ↗
40. Ab Initio Modeling of Electrolyte Molecule Ethylene Carbonate Decomposition Reaction on Li(Ni,Mn,Co)O2 Cathode Surface10.1021/acsami.7b03435 ↗
41. Nickel-rich layered lithium transition-metal oxide for high-energy lithium-ion batteries10.1002/anie.201409262 ↗
42. Phillip · ACS Applied Energy Materials · 2020 · 3 · 176810.1021/acsaem.9b02230 ↗
43. Particles and polymer binder interaction: A controlling factor in lithium-ion electrode performance10.1149/2.024203jes ↗