JP2018037407A - リチウム−硫黄電池用隔膜及びリチウム−硫黄電池 - Google Patents
リチウム−硫黄電池用隔膜及びリチウム−硫黄電池 Download PDFInfo
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Abstract
Description
リチウム−硫黄電池は、硫黄−カーボンナノチューブ複合極片を陽極として、金属のリチウムシートを陰極として、下記の方法により形成される溶液を電解液とする。その中には、陽極極片における硫黄の質量が75%を占める。具体的には、電解液は、1モルのリチウムビス(トリフルオロメタンスルホニル)イミド(LiTFSI)を、添加剤とする0.2モルのLiNO3を含む1,3−ジオキソラン(DOL)とジメチルエーテル(DME)との混合液に溶解することにより、形成された溶液である。その中には、1,3−ジオキソラン(DOL)とジメチルエーテル(DME)との体積比が1:1である。
比較例bのリチウム−硫黄電池は、上記実施例aのリチウム−硫黄電池と基本的に同じである。異なることは、比較例bのリチウム−硫黄電池用隔膜は、厚さが20マイクロメートルであるポリエチレンフィルムを採用するだけである。
110 隔膜基底
120 機能層
122 酸化グラフェン複合層
124 カーボンナノチューブ層
1222 酸化グラフェンシート
1224 二酸化マンガンのナノ粒子
Claims (5)
- 隔膜基底及び機能層を含み、該機能層が前記隔膜基底の少なくとも一つの表面を覆うリチウム−硫黄電池用隔膜において、前記機能層が、少なくとも二層の酸化グラフェン複合層及び少なくとも二層のカーボンナノチューブ層を含み、前記少なくとも二層の酸化グラフェン複合層及び前記少なくとも二層のカーボンナノチューブ層が、交替で積層して設置され、前記酸化グラフェン複合層が、複数の酸化グラフェンシート及び複数の二酸化マンガンのナノ粒子を含み、前記複数の酸化グラフェンシートが、互いに接合して、前記複数の二酸化マンガンのナノ粒子が、前記酸化グラフェンシートに均一的に吸着されることを特徴とするリチウム−硫黄電池用隔膜。
- 前記カーボンナノチューブ層は、積層し、交差して設置された少なくとも二層のカーボンナノチューブフィルムを含み、該カーボンナノチューブフィルムが複数のカーボンナノチューブを含み、該複数のカーボンナノチューブが、同じ方向に沿って配列されていることを特徴とする、請求項1にリチウム−硫黄電池用隔膜。
- 前記複数の二酸化マンガンのナノ粒子と前記酸化グラフェンシートとの重量比が1:2〜1:1であることを特徴とする、請求項1に記載のリチウム−硫黄電池用隔膜。
- 前記少なくとも二層のカーボンナノチューブ層における一層のカーボンナノチューブ層は、前記隔膜基底と直接に接触されることを特徴とする、請求項1に記載のリチウム−硫黄電池用隔膜。
- リチウム−硫黄電池用隔膜を含み、該リチウム−硫黄電池用隔膜が隔膜基底及び機能層を含み、該機能層が前記隔膜基底の少なくとも一つの表面を覆うリチウム−硫黄電池において、前記機能層が、少なくとも二層の酸化グラフェン複合層及び少なくとも二層のカーボンナノチューブ層を含み、少なくとも二層の酸化グラフェン複合層及び少なくとも二層のカーボンナノチューブ層が、交替で積層して設置され、前記酸化グラフェン複合層が、複数の酸化グラフェンシート及び複数の二酸化マンガンのナノ粒子を含み、前記複数の酸化グラフェンシートが、互いに接合して、前記複数の二酸化マンガンのナノ粒子が、前記酸化グラフェンシートに均一的に吸着されることを特徴とするリチウム−硫黄電池。
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CN201610779324.9A CN107785523B (zh) | 2016-08-31 | 2016-08-31 | 锂硫电池隔膜以及锂硫电池 |
CN201610779324.9 | 2016-08-31 |
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US (1) | US10319974B2 (ja) |
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JP2021523534A (ja) * | 2018-10-26 | 2021-09-02 | エルジー・ケム・リミテッド | 機能性分離膜、その製造方法及びそれを含むリチウム二次電池 |
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CN111224079B (zh) * | 2018-11-27 | 2021-11-05 | 清华大学 | 锂硫电池电极、锂硫电池电极的制备方法及锂硫电池 |
CN109698303A (zh) * | 2018-12-03 | 2019-04-30 | 江苏理工学院 | 一种电子导电材料及其制备和在锂硫电池涂层隔膜中的应用 |
DE102018131922A1 (de) | 2018-12-12 | 2020-06-18 | Carl Freudenberg Kg | Membran für den selektiven Stofftransport |
DE102018131928A1 (de) | 2018-12-12 | 2020-06-18 | Carl Freudenberg Kg | Separator für elektrochemische Energiespeicher und Wandler |
CN111403663B (zh) * | 2020-03-23 | 2022-06-14 | 合肥工业大学 | 一种锂硫电池改性隔膜及其制备方法 |
CN111554856B (zh) * | 2020-05-18 | 2021-08-10 | 华中科技大学 | 一种锂硫电池的功能性复合夹层、其制备和应用 |
CN111900390B (zh) * | 2020-05-29 | 2022-04-01 | 湘潭大学 | 一种金属锡和碳纳米管共掺杂的锂硫电池中间层材料及制备方法和应用 |
CN114335901A (zh) * | 2020-10-09 | 2022-04-12 | 宝武炭材料科技有限公司 | 一种氧化石墨烯/zif-8复合隔膜及其制备方法 |
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