JP6374678B2 - 蓄電デバイスの負極材料 - Google Patents
蓄電デバイスの負極材料 Download PDFInfo
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Description
(1)Siが主成分であり、その結晶子サイズが30nm以下であるSi相、
並びに
(2)Si及びAlを含み、さらにCr又はTiを含んでおり、その結晶子サイズが40nm以下である化合物相
を有する。
(1)Siが主成分であり、その結晶子サイズが30nm以下であるSi相、
並びに
(2)Si及びAlを含み、さらにCr又はTiを含んでおり、その結晶子サイズが40nm以下である化合物相
を有する。
(1)Siが主成分であり、その結晶子サイズが30nm以下であるSi相、
並びに
(2)Si及びAlを含み、さらにCr又はTiを含んでおり、その結晶子サイズが40nm以下である化合物相
を有する。
D=(K×λ)/(β×cosθ)
この数式において、Dは結晶子の大きさ(オングストローム)を表し、KはScherrerの定数を表し、λはX線管球の波長を表し、βは結晶子の大きさによる回折線の拡がりを表し、θは回折角を表す。
分析箇所1:Si−12.28at.%Cr−11.84at.%Ti
分析箇所2:Si−10.37at.%Cr−10.04at.%Ti
分析箇所3:Si−11.69at.%Cr−11.35at.%Ti
であった。この組織図から明らかなように、結晶子サイズは20nm程度である。この組織図から明らかなように、合金において、Si相と化合物相とが混ざり合った微細構造が、得られている。
6・・・電解液
8・・・セパレータ
10・・・正極
12・・・負極
18・・・集電体
20・・・活物質層
22・・・粒子
Claims (11)
- Si系合金からなり、この合金が、
(1)Siが主成分であり、その結晶子サイズが30nm以下であり、Siに固溶するAlを含むSi相、
並びに
(2)Si及びAlを含み、さらにCr又はTiを含んでおり、その結晶子サイズが40nm以下である化合物相
を有しており、
上記合金における、CrとTiとの合計含有率が15.29at.%以上30at.%以下であり、Alの含有率が0.05at.%以上15at.%以下であり、
上記合金における、Cr、Ti及びAlの合計含有率(at.%)に対する、Siの含有率(at.%)の比(Si/(Cr+Ti+Al))が、1.00以上7.00以下である蓄電デバイスの負極材料。 - 上記化合物相が、Si、Cr、Ti及びAlを含んでいる請求項1に記載の負極材料。
- 上記合金がAl単相をさらに有する請求項1又は2に記載の負極材料。
- 上記合金における、TiとAlとの合計含有率が、1.00at.%以上25.00at.%以下である請求項1から3のいずれかに記載の負極材料。
- 上記合金における、Cr、Ti及びAlの合計含有率(at.%)に対する、Alの含有率(at.%)の比(Al/(Cr+Ti+Al))が、0.01以上0.50以下である請求項1から4のいずれかに記載の負極材料。
- 上記比(Al/(Cr+Ti+Al))が0.04以上0.40以下である請求項5に記載の負極材料。
- 上記合金が、Cu、V、Mn、Fe、Ni、Nb、Zn及びZrからなる群から選択される1又は2以上の元素を含んでおり、これらの元素の合計含有率が0.05at.%以上15at.%以下である請求項1から6のいずれかに記載の負極材料。
- 上記合金が、Mg、B、P、Ga及びCからなる群から選択される1又は2以上の元素を含んでおり、これらの元素の合計含有率が0.05at.%以上10at.%以下である請求項1から7のいずれかに記載の負極材料。
- 上記合金がNを含んでおり、このNの含有率が0.001mass%以上1mass%以下である請求項1から8のいずれかに記載の負極材料。
- 集電体と、この集電体の表面に固着された多数の粒子とを備えており、
上記粒子が、Si系合金からなり、
この合金が、
(1)Siが主成分であり、その結晶子サイズが30nm以下であり、Siに固溶するAlを含むSi相、
並びに
(2)Si及びAlを含み、さらにCr又はTiを含んでおり、その結晶子サイズが40nm以下である化合物相
を有しており、
上記合金における、CrとTiとの合計含有率が15.29at.%以上30at.%以下であり、Alの含有率が0.05at.%以上15at.%以下であり、
上記合金における、Cr、Ti及びAlの合計含有率(at.%)に対する、Siの含有率(at.%)の比(Si/(Cr+Ti+Al))が、1.00以上7.00以下である蓄電デバイスの負極。 - 正極と負極とを備えており、
上記負極が、集電体と、この集電体の表面に固着された多数の粒子とを備えており、
上記粒子が、Si系合金からなり、
この合金が、
(1)Siが主成分であり、その結晶子サイズが30nm以下であり、Siに固溶するAlを含むSi相、
並びに
(2)Si及びAlを含み、さらにCr又はTiを含んでおり、その結晶子サイズが40nm以下である化合物相
を有しており、
上記合金における、CrとTiとの合計含有率が15.29at.%以上30at.%以下であり、Alの含有率が0.05at.%以上15at.%以下であり、
上記合金における、Cr、Ti及びAlの合計含有率(at.%)に対する、Siの含有率(at.%)の比(Si/(Cr+Ti+Al))が、1.00以上7.00以下である蓄電デバイス。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014050541A JP6374678B2 (ja) | 2014-03-13 | 2014-03-13 | 蓄電デバイスの負極材料 |
KR1020167023588A KR20160132384A (ko) | 2014-03-13 | 2015-02-10 | 축전 디바이스의 음극 재료 |
CN201580012017.1A CN106104863B (zh) | 2014-03-13 | 2015-02-10 | 蓄电器件的负极材料 |
PCT/JP2015/053670 WO2015137034A1 (ja) | 2014-03-13 | 2015-02-10 | 蓄電デバイスの負極材料 |
TW104105080A TWI650895B (zh) | 2014-03-13 | 2015-02-13 | 蓄電裝置之負極材料 |
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JP2014050541A JP6374678B2 (ja) | 2014-03-13 | 2014-03-13 | 蓄電デバイスの負極材料 |
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JP2015176674A JP2015176674A (ja) | 2015-10-05 |
JP6374678B2 true JP6374678B2 (ja) | 2018-08-15 |
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---|---|
JP (1) | JP6374678B2 (ja) |
KR (1) | KR20160132384A (ja) |
CN (1) | CN106104863B (ja) |
TW (1) | TWI650895B (ja) |
WO (1) | WO2015137034A1 (ja) |
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CN105506471A (zh) * | 2015-12-09 | 2016-04-20 | 苏州市吴中区胥口丰收机械配件厂 | 一种高强度弹簧及其加工工艺 |
CN105839022B (zh) * | 2016-03-31 | 2021-04-09 | 宝钢德盛不锈钢有限公司 | 一种高硬度无磁无镍不锈钢及其制造方法 |
JP6705302B2 (ja) * | 2016-06-16 | 2020-06-03 | 日産自動車株式会社 | 電気デバイス用負極活物質、およびこれを用いた電気デバイス |
JP2017228403A (ja) * | 2016-06-21 | 2017-12-28 | 山陽特殊製鋼株式会社 | 蓄電デバイス用負極材料 |
JP2018181660A (ja) * | 2017-04-17 | 2018-11-15 | 山陽特殊製鋼株式会社 | 蓄電デバイス用負極材料 |
CN106939389B (zh) * | 2017-05-17 | 2018-08-10 | 安徽巨泰机械制造有限公司 | 一种农机用合金铸件及其制备工艺 |
CN107326216A (zh) * | 2017-07-24 | 2017-11-07 | 衢州华意拉链有限公司 | 用于制作拉链的耐腐蚀锌合金及其制备工艺 |
WO2019053983A1 (ja) * | 2017-09-14 | 2019-03-21 | 株式会社豊田自動織機 | Al含有シリコン材料を含む負極活物質 |
JP6859930B2 (ja) * | 2017-09-14 | 2021-04-14 | 株式会社豊田自動織機 | Al含有シリコン材料 |
WO2019053984A1 (ja) * | 2017-09-14 | 2019-03-21 | 株式会社豊田自動織機 | Al含有シリコン材料を含む負極活物質 |
WO2019053985A1 (ja) * | 2017-09-14 | 2019-03-21 | 株式会社豊田自動織機 | Al含有シリコン材料を含む負極活物質 |
CN109457168B (zh) * | 2018-12-24 | 2021-07-06 | 宁波正直科技有限公司 | 家用燃气灶燃气管合金及其制备方法和燃气管 |
CN110195187B (zh) * | 2019-05-17 | 2020-06-05 | 北京科技大学 | 一种高弹性模量汽车用钢铁材料及其制备方法 |
CN115004410A (zh) * | 2020-01-31 | 2022-09-02 | 松下知识产权经营株式会社 | 二次电池用负极活性物质和二次电池 |
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