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KAKEN_17K18833seika.pdf
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Download
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:552.8 KB
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:Oct 31, 2019 |
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Total downloads since Oct 31, 2019 : 459
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レーザ照射によるSiマイクロピラーの高速生成と次世代Liイオン電池への応用探索
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レーザ ショウシャ ニ ヨル Si マイクロピラー ノ コウソク セイセイ ト ジセダイ Li イオン デンチ エノ オウヨウ タンサク
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Rēza shōsha ni yoru Si maikuropirā no kōsoku seisei to jisedai Li ion denchi eno ōyō tansaku
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Laser irradiation-induced micro pillar generation and its application to the fabrication of next-generation Li-ion battery
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閻, 紀旺
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ヤン, ジワン
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Yan, Jiwang
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慶應義塾大学・理工学部 (矢上)・教授
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Research team head
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科研費研究者番号 : 40323042
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野口, 淳
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ノグチ, ジュン
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Noguchi, Jun
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Collaborator
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砂場, 勇輝
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スナバ, ユウキ
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Sunaba, Yūki
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Collaborator
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百木, 航
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モモキ, コウ
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Momoki, Kō
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Collaborator
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寺師, 吉建
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テラシ, ヨシタケ
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Terashi, Yoshitake
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立川, 直樹
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タチカワ, ナオキ
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Tachikawa, Naoki
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Collaborator
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片山, 靖
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カタヤマ, ヤスシ
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Katayama, Yasushi
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Collaborator
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2019
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科学研究費補助金研究成果報告書
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2018
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現在電子機器の消費電力の増加やスマートハウス，電気自動車などへの応用に伴い，リチウムイオン電池の高容量化が求められている．一方，半導体分野でSiウエハの生産においてワイヤソーによるインゴットの切断の際粒度がμmオーダーのSi粉末が切りくずとして大量に排出されいる．本研究では，銅箔上へ塗布された廃Si粉末へのナノ秒パルスレーザ照射を行った．その結果，Siマイクロピラーの形成に成功し，レーザフルエンスおよび走査速度を変化させることでピラーの高さの制御,レーザの照射角度を変化させることでピラーの形成方向の制御が可能であった．作製したSiピラーが優れたサイクル特性を示した.
A nanosecond pulsed Nd:YAG laser was used to irradiate a mixture of silicon powders, polyimide and carbon black deposited onto a copper foil. Silicon micro pillars with a single-crystalline structure were successfully created through laser-induced material self-organization. The shape, orientation and growth rate of the pillars were controllable by varying the fluence, incident angle and scan speed of the laser. The resulting pillar-on-foil structures were applied as negative electrodes of lithium ion batteries, and excellent electrical capacities as well as charge/discharge cycle characteristics could be obtained. The applicability of the proposed method to the manufacture of three-dimensional microstructures was demonstrated.
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研究種目 : 挑戦的研究(萌芽)
研究期間 : 2017～2018
課題番号 : 17K18833
研究分野 : 生産加工学
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| History |
| Oct 31, 2019 | | インデックス を変更 |
| Oct 31, 2019 | | 著者 著者ID,著者 名前,著者 カナ,著者 ローマ字,著者 所属,著者 所属(翻訳),著者 役割,著者 外部リンク,抄録 内容,注記 を変更 |
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