Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries
Carboxymethyl cellulose lithium (CMC-Li) has recently been explored as a promising binder for Li-ion batteries because of enhanced Li+ ion flux. CMC-Li has been generally prepared by CMC acid form (CMC-H) as an intermediate product treated with a strong acid, which considerably causes a polymer degr...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/139720 |
| _version_ | 1826117214042849280 |
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| author | Park, Hyunjung Lee, Dongsoo Song, Taeseup |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Park, Hyunjung Lee, Dongsoo Song, Taeseup |
| author_sort | Park, Hyunjung |
| collection | NTU |
| description | Carboxymethyl cellulose lithium (CMC-Li) has recently been explored as a promising binder for Li-ion batteries because of enhanced Li+ ion flux. CMC-Li has been generally prepared by CMC acid form (CMC-H) as an intermediate product treated with a strong acid, which considerably causes a polymer degradation. Here, we report a synthesis method of CMC-Li through the use of a weak acid (acetic acid) and its application in a high energy-density graphite anode. CMC-Li synthesized by acetic acid (CMC-Li (A)) exhibits enhanced physicochemical properties including an appropriate viscosity of ∼3000 mPa·s at a shear rate of 10 s-1, good slurry stability, and strong adhesion force of 1.4 gf/mm compared to those of CMC-Li synthesized by hydrochloric acid. The high energy-density graphite anode prepared with CMC-Li (A) shows higher charge/discharge capacities and capacity retentions in various rates of 0.05-2 C than those of the electrode prepared with CMC-Na that might be due to the enhanced Li+ ion flux upon cycling. |
| first_indexed | 2024-10-01T04:23:58Z |
| format | Journal Article |
| id | ntu-10356/139720 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:23:58Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1397202020-05-21T05:04:31Z Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries Park, Hyunjung Lee, Dongsoo Song, Taeseup School of Chemical and Biomedical Engineering Science::Chemistry Organic Acids Carbon Carboxymethyl cellulose lithium (CMC-Li) has recently been explored as a promising binder for Li-ion batteries because of enhanced Li+ ion flux. CMC-Li has been generally prepared by CMC acid form (CMC-H) as an intermediate product treated with a strong acid, which considerably causes a polymer degradation. Here, we report a synthesis method of CMC-Li through the use of a weak acid (acetic acid) and its application in a high energy-density graphite anode. CMC-Li synthesized by acetic acid (CMC-Li (A)) exhibits enhanced physicochemical properties including an appropriate viscosity of ∼3000 mPa·s at a shear rate of 10 s-1, good slurry stability, and strong adhesion force of 1.4 gf/mm compared to those of CMC-Li synthesized by hydrochloric acid. The high energy-density graphite anode prepared with CMC-Li (A) shows higher charge/discharge capacities and capacity retentions in various rates of 0.05-2 C than those of the electrode prepared with CMC-Na that might be due to the enhanced Li+ ion flux upon cycling. 2020-05-21T05:04:31Z 2020-05-21T05:04:31Z 2018 Journal Article Park, H., Lee, D., & Song, T. (2018). Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries. Industrial and Engineering Chemistry Research, 57(27), 8895-8901. doi:10.1021/acs.iecr.8b00851 0888-5885 https://hdl.handle.net/10356/139720 10.1021/acs.iecr.8b00851 2-s2.0-85048590434 27 57 8895 8901 en Industrial and Engineering Chemistry Research © 2018 American Chemical Society. All rights reserved. |
| spellingShingle | Science::Chemistry Organic Acids Carbon Park, Hyunjung Lee, Dongsoo Song, Taeseup Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries |
| title | Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries |
| title_full | Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries |
| title_fullStr | Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries |
| title_full_unstemmed | Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries |
| title_short | Synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy-density graphite anode for Li-ion batteries |
| title_sort | synthesis of carboxymethyl cellulose lithium by weak acid treatment and its application in high energy density graphite anode for li ion batteries |
| topic | Science::Chemistry Organic Acids Carbon |
| url | https://hdl.handle.net/10356/139720 |
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