Cargando…
Tailored PVDF Graft Copolymers via ATRP as High-Performance NCM811 Cathode Binders
[Image: see text] High-nickel layered oxides, e.g., LiNi(0.8)Co(0.1)Mn(0.1)O(2) (NCM811), are promising candidates for cathode materials in high-energy-density lithium-ion batteries (LIBs). Complementing the notable developments of modification of active materials, this study focused on the polymer...
Autores principales: | , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10548467/ https://www.ncbi.nlm.nih.gov/pubmed/37800127 http://dx.doi.org/10.1021/acsmaterialslett.3c00485 |
_version_ | 1785115272414232576 |
---|---|
author | Liu, Tong Parekh, Rohan Mocny, Piotr Bloom, Brian P. Zhao, Yuqi An, So Young Pan, Bonian Yin, Rongguan Waldeck, David H. Whitacre, Jay F. Matyjaszewski, Krzysztof |
author_facet | Liu, Tong Parekh, Rohan Mocny, Piotr Bloom, Brian P. Zhao, Yuqi An, So Young Pan, Bonian Yin, Rongguan Waldeck, David H. Whitacre, Jay F. Matyjaszewski, Krzysztof |
author_sort | Liu, Tong |
collection | PubMed |
description | [Image: see text] High-nickel layered oxides, e.g., LiNi(0.8)Co(0.1)Mn(0.1)O(2) (NCM811), are promising candidates for cathode materials in high-energy-density lithium-ion batteries (LIBs). Complementing the notable developments of modification of active materials, this study focused on the polymer binder materials, and a new synthetic route was developed to engineer PVDF binders by covalently grafting copolymers from poly(vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) with multiple functionalities using atom transfer radical polymerization (ATRP). The grafted random copolymer binder provided excellent flexibility (319% elongation), adhesion strength (50 times higher than PVDF), transition metal chelation capability, and efficient ionic conductivity pathways. The NCM811 half-cells using the designed binders exhibited a remarkable rate capability of 143.4 mA h g(–1) at 4C and cycling stability with 70.1% capacity retention after 230 cycles at 0.5 C, which is much higher than the 52.3% capacity retention of nonmodified PVDF. The well-retained structure of NCM811 with the designed binder was systematically studied and confirmed by post-mortem analysis. |
format | Online Article Text |
id | pubmed-10548467 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-105484672023-10-05 Tailored PVDF Graft Copolymers via ATRP as High-Performance NCM811 Cathode Binders Liu, Tong Parekh, Rohan Mocny, Piotr Bloom, Brian P. Zhao, Yuqi An, So Young Pan, Bonian Yin, Rongguan Waldeck, David H. Whitacre, Jay F. Matyjaszewski, Krzysztof ACS Mater Lett [Image: see text] High-nickel layered oxides, e.g., LiNi(0.8)Co(0.1)Mn(0.1)O(2) (NCM811), are promising candidates for cathode materials in high-energy-density lithium-ion batteries (LIBs). Complementing the notable developments of modification of active materials, this study focused on the polymer binder materials, and a new synthetic route was developed to engineer PVDF binders by covalently grafting copolymers from poly(vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) with multiple functionalities using atom transfer radical polymerization (ATRP). The grafted random copolymer binder provided excellent flexibility (319% elongation), adhesion strength (50 times higher than PVDF), transition metal chelation capability, and efficient ionic conductivity pathways. The NCM811 half-cells using the designed binders exhibited a remarkable rate capability of 143.4 mA h g(–1) at 4C and cycling stability with 70.1% capacity retention after 230 cycles at 0.5 C, which is much higher than the 52.3% capacity retention of nonmodified PVDF. The well-retained structure of NCM811 with the designed binder was systematically studied and confirmed by post-mortem analysis. American Chemical Society 2023-08-25 /pmc/articles/PMC10548467/ /pubmed/37800127 http://dx.doi.org/10.1021/acsmaterialslett.3c00485 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Liu, Tong Parekh, Rohan Mocny, Piotr Bloom, Brian P. Zhao, Yuqi An, So Young Pan, Bonian Yin, Rongguan Waldeck, David H. Whitacre, Jay F. Matyjaszewski, Krzysztof Tailored PVDF Graft Copolymers via ATRP as High-Performance NCM811 Cathode Binders |
title | Tailored
PVDF Graft Copolymers via ATRP as High-Performance
NCM811 Cathode Binders |
title_full | Tailored
PVDF Graft Copolymers via ATRP as High-Performance
NCM811 Cathode Binders |
title_fullStr | Tailored
PVDF Graft Copolymers via ATRP as High-Performance
NCM811 Cathode Binders |
title_full_unstemmed | Tailored
PVDF Graft Copolymers via ATRP as High-Performance
NCM811 Cathode Binders |
title_short | Tailored
PVDF Graft Copolymers via ATRP as High-Performance
NCM811 Cathode Binders |
title_sort | tailored
pvdf graft copolymers via atrp as high-performance
ncm811 cathode binders |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10548467/ https://www.ncbi.nlm.nih.gov/pubmed/37800127 http://dx.doi.org/10.1021/acsmaterialslett.3c00485 |
work_keys_str_mv | AT liutong tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT parekhrohan tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT mocnypiotr tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT bloombrianp tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT zhaoyuqi tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT ansoyoung tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT panbonian tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT yinrongguan tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT waldeckdavidh tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT whitacrejayf tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders AT matyjaszewskikrzysztof tailoredpvdfgraftcopolymersviaatrpashighperformancencm811cathodebinders |