Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder Material
In the manufacturing process of lithium-ion batteries, the current organic solvent-based processes will inevitably be replaced with eco-friendly water-based processes. For this purpose, the current organic-soluble binder should be replaced with a water-soluble or water-dispersed binder. In this stud...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-03-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/7/1902 |
| _version_ | 1797539546788790272 |
|---|---|
| author | Mi Tian Yanchunxiao Qi Eun-Suok Oh |
| author_facet | Mi Tian Yanchunxiao Qi Eun-Suok Oh |
| author_sort | Mi Tian |
| collection | DOAJ |
| description | In the manufacturing process of lithium-ion batteries, the current organic solvent-based processes will inevitably be replaced with eco-friendly water-based processes. For this purpose, the current organic-soluble binder should be replaced with a water-soluble or water-dispersed binder. In this study, a new polyacrylate latex dispersed in water was successfully applied as a binder of lithium-ion battery cathodes for the first time. One of the biggest advantages of the polyacrylate binder is that it is electrochemically stable at the working voltage of typical cathodes, unlike a conventional water-dispersed styrene-butadiene binder. This implies that the water-dispersed polyacrylate has no limitations for the usage of a cathodic binder. The performance of the polyacrylate binder for lithium iron phosphate cathodes was compared with those of a conventional organic-based polyvinylidene fluoride binder as well as a water-dispersed styrene-butadiene binder. The polyacrylate binder exhibited an electrochemical performance that was comparable to that of an existing styrene-butadiene binder and much better than that of the polyvinylidene fluoride binder. This superior performance of the polyacrylate binder is attributed to the point-to-point bonding mechanism of an emulsified binder, which leads to a strong adhesion strength as well as the low electrical and charge transfer resistances of the cathodes. |
| first_indexed | 2024-03-10T12:47:23Z |
| format | Article |
| id | doaj.art-62ff9ed4b7014a4b8a3b10d416765917 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T12:47:23Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-62ff9ed4b7014a4b8a3b10d4167659172023-11-21T13:23:32ZengMDPI AGEnergies1996-10732021-03-01147190210.3390/en14071902Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder MaterialMi Tian0Yanchunxiao Qi1Eun-Suok Oh2School of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, KoreaSchool of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, KoreaSchool of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, KoreaIn the manufacturing process of lithium-ion batteries, the current organic solvent-based processes will inevitably be replaced with eco-friendly water-based processes. For this purpose, the current organic-soluble binder should be replaced with a water-soluble or water-dispersed binder. In this study, a new polyacrylate latex dispersed in water was successfully applied as a binder of lithium-ion battery cathodes for the first time. One of the biggest advantages of the polyacrylate binder is that it is electrochemically stable at the working voltage of typical cathodes, unlike a conventional water-dispersed styrene-butadiene binder. This implies that the water-dispersed polyacrylate has no limitations for the usage of a cathodic binder. The performance of the polyacrylate binder for lithium iron phosphate cathodes was compared with those of a conventional organic-based polyvinylidene fluoride binder as well as a water-dispersed styrene-butadiene binder. The polyacrylate binder exhibited an electrochemical performance that was comparable to that of an existing styrene-butadiene binder and much better than that of the polyvinylidene fluoride binder. This superior performance of the polyacrylate binder is attributed to the point-to-point bonding mechanism of an emulsified binder, which leads to a strong adhesion strength as well as the low electrical and charge transfer resistances of the cathodes.https://www.mdpi.com/1996-1073/14/7/1902polyacrylate latexemulsified water-based binderlithium iron phosphate cathodelithium-ion battery |
| spellingShingle | Mi Tian Yanchunxiao Qi Eun-Suok Oh Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder Material Energies polyacrylate latex emulsified water-based binder lithium iron phosphate cathode lithium-ion battery |
| title | Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder Material |
| title_full | Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder Material |
| title_fullStr | Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder Material |
| title_full_unstemmed | Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder Material |
| title_short | Application of a Polyacrylate Latex to a Lithium Iron Phosphate Cathode as a Binder Material |
| title_sort | application of a polyacrylate latex to a lithium iron phosphate cathode as a binder material |
| topic | polyacrylate latex emulsified water-based binder lithium iron phosphate cathode lithium-ion battery |
| url | https://www.mdpi.com/1996-1073/14/7/1902 |
| work_keys_str_mv | AT mitian applicationofapolyacrylatelatextoalithiumironphosphatecathodeasabindermaterial AT yanchunxiaoqi applicationofapolyacrylatelatextoalithiumironphosphatecathodeasabindermaterial AT eunsuokoh applicationofapolyacrylatelatextoalithiumironphosphatecathodeasabindermaterial |