Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries
Silicon is an attractive anode material for lithium-ion batteries (LIBs) because of its natural abundance and excellent theoretical energy density. However, Si-based electrodes are difficult to commercialize because of their significant volume changes during lithiation that can result in mechanical...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/12/3164 |
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| author | Yujin So Hyeon-Su Bae Yi Young Kang Ji Yun Chung No Kyun Park Jinsoo Kim Hee-Tae Jung Jong Chan Won Myung-Hyun Ryou Yun Ho Kim |
| author_facet | Yujin So Hyeon-Su Bae Yi Young Kang Ji Yun Chung No Kyun Park Jinsoo Kim Hee-Tae Jung Jong Chan Won Myung-Hyun Ryou Yun Ho Kim |
| author_sort | Yujin So |
| collection | DOAJ |
| description | Silicon is an attractive anode material for lithium-ion batteries (LIBs) because of its natural abundance and excellent theoretical energy density. However, Si-based electrodes are difficult to commercialize because of their significant volume changes during lithiation that can result in mechanical damage. To overcome this limitation, we synthesized an eco-friendly water-soluble polyimide (W-PI) precursor, poly(amic acid) salt (W-PAmAS), as a binder for Si anodes via a simple one-step process using water as a solvent. Using the W-PAmAS binder, a composite Si electrode was achieved by low-temperature processing at 150 °C. The adhesion between the electrode components was further enhanced by introducing 3,5-diaminobenzoic acid, which contains free carboxylic acid (–COOH) groups in the W-PAmAS backbone. The –COOH of the W-PI binder chemically interacts with the surface of Si nanoparticles (SiNPs) by forming ester bonds, which efficiently bond the SiNPs, even during severe volume changes. The Si anode with W-PI binder showed improved electrochemical performance with a high capacity of 2061 mAh g<sup>−1</sup> and excellent cyclability of 1883 mAh g<sup>−1</sup> after 200 cycles at 1200 mA g<sup>−1</sup>. Therefore, W-PI can be used as a highly effective polymeric binder in Si-based high-capacity LIBs. |
| first_indexed | 2024-03-10T03:27:49Z |
| format | Article |
| id | doaj.art-ebc8139a7d614e1dbc57582ca263ef38 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T03:27:49Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-ebc8139a7d614e1dbc57582ca263ef382023-11-23T09:48:45ZengMDPI AGNanomaterials2079-49912021-11-011112316410.3390/nano11123164Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion BatteriesYujin So0Hyeon-Su Bae1Yi Young Kang2Ji Yun Chung3No Kyun Park4Jinsoo Kim5Hee-Tae Jung6Jong Chan Won7Myung-Hyun Ryou8Yun Ho Kim9Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, KoreaDepartment of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, KoreaAdvanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, KoreaAdvanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, KoreaAdvanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, KoreaAdvanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, KoreaDepartment of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaAdvanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, KoreaDepartment of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, KoreaAdvanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, KoreaSilicon is an attractive anode material for lithium-ion batteries (LIBs) because of its natural abundance and excellent theoretical energy density. However, Si-based electrodes are difficult to commercialize because of their significant volume changes during lithiation that can result in mechanical damage. To overcome this limitation, we synthesized an eco-friendly water-soluble polyimide (W-PI) precursor, poly(amic acid) salt (W-PAmAS), as a binder for Si anodes via a simple one-step process using water as a solvent. Using the W-PAmAS binder, a composite Si electrode was achieved by low-temperature processing at 150 °C. The adhesion between the electrode components was further enhanced by introducing 3,5-diaminobenzoic acid, which contains free carboxylic acid (–COOH) groups in the W-PAmAS backbone. The –COOH of the W-PI binder chemically interacts with the surface of Si nanoparticles (SiNPs) by forming ester bonds, which efficiently bond the SiNPs, even during severe volume changes. The Si anode with W-PI binder showed improved electrochemical performance with a high capacity of 2061 mAh g<sup>−1</sup> and excellent cyclability of 1883 mAh g<sup>−1</sup> after 200 cycles at 1200 mA g<sup>−1</sup>. Therefore, W-PI can be used as a highly effective polymeric binder in Si-based high-capacity LIBs.https://www.mdpi.com/2079-4991/11/12/3164lithium-ion batteriessilicon anodesbinderpolyimidewater-processable |
| spellingShingle | Yujin So Hyeon-Su Bae Yi Young Kang Ji Yun Chung No Kyun Park Jinsoo Kim Hee-Tae Jung Jong Chan Won Myung-Hyun Ryou Yun Ho Kim Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries Nanomaterials lithium-ion batteries silicon anodes binder polyimide water-processable |
| title | Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries |
| title_full | Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries |
| title_fullStr | Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries |
| title_full_unstemmed | Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries |
| title_short | Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries |
| title_sort | eco friendly water processable polyimide binders with high adhesion to silicon anodes for lithium ion batteries |
| topic | lithium-ion batteries silicon anodes binder polyimide water-processable |
| url | https://www.mdpi.com/2079-4991/11/12/3164 |
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