Development of functional electric device, electric double layer capcitor (EDLC) for the wise use of woody resources

开发功能性电子器件、双电层电容器（EDLC），以实现木质资源的合理利用

• 批准号: 19J22306
• 负责人: PAKKANG Nutthira
• 金额: $ 1.98万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2019
• 资助国家: 日本
• 起止时间: 2019-04-25 至 2022-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-19J22306/
• 关键词: ionic liquid; lignin-based electrode; lignin-based separator; fatty acid-based IL; lignin-based EDLC; Lignin; EDLC; ionic liquid electrolyte

1. Development of electrolytes from fatty acids of vegetable oilsLinoleic acid was shown to be more suited for usage as electrolytes in both the cation and anion parts than electrolytes made from ricinoleic acid, since the linoleic acid-based electrolytes demonstrated a lower viscosity and a higher conductivity. However, due to its high viscosity, its EDLC capacitance remained low. Propylene carbonate (PC) was added to the electrolytes to lower their viscosity. As expected, an increase in the capacitance of the EDLC was found.2. Development of EDLC parts, electrode and separator, from hardwood kraft lignin (HKL)From an electrospun HKL fiber mat, a separator as tHKL separator and two types of electrodes (mat type and power type) can be made. The EDLC was fabricated using a mat type of electrode and a tHKL separator and demonstrated remarkable energy and power densities. Although a powder type electrode requires a casting method to prepare, its EDLC demonstrated excellent electrochemical performance, extremely high power density, low resistances, and good capacitance stability, which were attributed to the powder type electrode's smooth surface and the resulting good contact with the separator.

1。从植物油丝酸的脂肪酸发育中，与用利切酸酸制成的电解质相比，阳离子和阴离子零件的电解质更适合使用，因为基于亚油酸的电解质表现出较低的粘度和较高的电导率。但是，由于其高粘度，其EDLC电容仍然很低。将碳酸盐（PC）添加到电解质中以降低其粘度。不出所料，发现EDLC的电容增加了2。可以从硬木牛皮纸木质蛋白（HKL）中开发EDLC零件，电极和分离器，从电纺HKL纤维垫，一个分离器作为THKL分离器和两种类型的电极（MAT类型和功率类型）。使用MAT类型的电极和THKL分离器制造EDLC，并显示出显着的能量和功率密度。尽管粉末类型电极需要一种铸造方法来准备，但其EDLC表现出出色的电化学性能，极高的功率密度，低电阻和良好的电容稳定性，这归因于粉末类型电极的光滑表面以及与分离器的良好接触。

项目成果

lectric double layer capacitor assembly with mainly lignin-based materials

主要采用木质素基材料的双电层电容器组件

• 发表时间: 2020
• 作者: Yokoyama Gaku;Yasutake Daisuke;Minami Keisuke;Kimura Kensuke;Marui Atsushi;Yueru Wu;Feng Jiaojiao;Wang Weizhen;Mori Makito;Kitano Masaharu;Nutthira Pakkang
• 通讯作者: Nutthira Pakkang

Kraft lignin-based materials for electric double layer capacitor

用于双电层电容器的硫酸盐木质素基材料

• 发表时间: 2021
• 作者: Nutthira Pakkang;Kengo Shigetomi;Yasumitsu Uraki
• 通讯作者: Yasumitsu Uraki

High performance electric double layer capacitor with lignin-derived electrode and ionic liquid electrolyte

具有木质素电极和离子液体电解质的高性能双电层电容器

• 发表时间: 2020
• 作者: Nutthira Pakkang;Noriyuki Mineharu;Manish Kumar;Yasumitsu Uraki
• 通讯作者: Yasumitsu Uraki

Development of lignin-based electrode for high performance electric double layer capacitor with ionic liquid as an electrolyte

以离子液体为电解质的高性能双电层电容器木质素基电极的研制

• 发表时间: 2019
• 作者: Nutthira Pakkang;Keiichi Koda;Yasumitsu Uraki
• 通讯作者: Yasumitsu Uraki