Development of high capacity lithium-ion battery applying three-dimensionally patterned electrode

详细信息    查看全文

• 作者：Akira Izumi ; Masakazu Sanada ; Koji Furuichi ; Kuniko Teraki ; Takeshi Matsuda ; Kenta Hiramatsu ; Hirokazu Munakata ; Kiyoshi Kanamura
• 关键词：Lithium-ion battery ; Lithium titanium oxide ; Three-dimensionally patterned electrode ; Rate capability
• 刊名：Electrochimica Acta
• 出版年：2012
• 出版时间：30 September, 2012
• 年：2012
• 卷：79
• 期：Complete
• 页码：218-222
• 全文大小：802 K

文摘

A three-dimensionally (3D) patterned Li₄Ti₅O₁₂ electrode was fabricated by using a micro printing technology. Composite slurry including Li₄Ti₅O₁₂, acetylene black, poly(vinylidene difluoride) and N-methyl pyrolidone was applied onto a current collector. The electrode has many lined patterns with high aspect ratio that stand in line on the current collector. The cyclic voltammograms of the half cell with 3D patterned electrode shows that the prepared electrode worked effectively as anode of a rechargeable lithium-ion battery. The cell with the 3D patterned electrode showed much better charge and discharge capacities than a conventional cell with a flat Li₄Ti₅O₁₂ electrode at high rates. It was also confirmed that the cycle performance of the cell with 3D patterned electrode was equal or better than that with the conventional electrode.