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| Preparation and Properties of Wood-based Gel Polymer Electrolyte |
| Received:April 13, 2023 |
| DOI：10.11980/j.issn.0254-508X.2023.05.011 |
| Key Words:balsa wood gel polymer electrolyte lithium-ion battery electrochemical properties |
| Fund Project:广西青年科学基金项目（2018GXNSFBA138027）；广西高校中青年教师基础能力提升项目（2018KY0023）；广西高等学校千名中青年骨干教师培育计划项目；广西大学科研基金项目（学术骨干项目）（XGZ170232）；广西壮族自治区级大学生创新创业训练项目（202110593256）。 |
| Author Name | Affiliation | Postcode | | CHEN Zhuoling | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuang Autonomous Region, 530004 | 530004 | | XU Yonglin | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuang Autonomous Region, 530004 | 530004 | | LI Zerong | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuang Autonomous Region, 530004 | 530004 | | LI Zhenghao | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuang Autonomous Region, 530004 | 530004 | | HUANG Qiaoling | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuang Autonomous Region, 530004 | 530004 | | LI Wei* | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuang Autonomous Region, 530004 | 530004 |
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| Abstract:In this study， balsa wood was used to prepare a novel wood-based gel polymer electrolyte （GPE） via alkali treatment， bleaching， acetylation， hot-pressing， and immersion of liquid electrolyte. The results showed that the crystallinity， mechanical strength， and thermal stability of hot-pressed modified wood was 54.7%， 2.16 MPa， and 300 ℃， respectively. After immersion of liquid electrolyte， the porosity and electrolyte uptake of modified wood were 74.6% and 719.0%， respectively， which were consistent with that before hot-pressing. Furthermore， the wood-based GPE exhibited good ionic conductivity （3.68 mS/cm） and wide electrochemical stability window （5.0 V）. The capacity of assembled Li/GPE/LiFePO4 lithium-ion battery decayed from 150.9 mAh/g to 146.1 mAh/g at a rate of 0.5 C after 100 cycles. However， due to the large pore size of the wood-based gel polymer electrolyte， the coulombic efficiency of the assembled lithium-ion battery was only 91%. |
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