JP7059299B2 - 固体リチウム・ベースの電池および固体リチウム・ベースの電池を形成する方法 - Google Patents
固体リチウム・ベースの電池および固体リチウム・ベースの電池を形成する方法 Download PDFInfo
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Description
Claims (15)
- 固体リチウム・イオン電池であって、
下部電極と、
前記下部電極の表面上に位置し、リチウム・ベースの混合酸化物を含むリチオ化カソード材料層と、前記リチオ化カソード材料層上に位置するリチウム・イオンの伝導を可能にする固体材料の固体電解質層と、チタニウム・ジルコニウム・モリブデン合金(TZM)のリチウム核生成強化ライナーとを含む、電池材料積層と、
前記電池材料積層の前記リチウム核生成強化ライナー上に位置する上部電極と、
前記固体電解質層と前記リチウム核生成強化ライナーの間に形成された第1のリチウム蓄積領域と、
前記リチウム核生成強化ライナーと前記上部電極の間に形成された第2のリチウム蓄積領域と
を含む固体リチウム・イオン電池。 - 前記下部電極の物理的に露出させた表面上および前記電池材料積層の周囲に位置する、空気または水分あるいはその両方に対して不透過性の構造部をさらに含む、請求項1に記載の固体リチウム・イオン電池。
- 前記リチオ化カソード材料層と、前記固体電解質層と、前記リチウム核生成強化ライナーとが、前記下部電極の表面に対して垂直な垂直方向に互いに整列された側壁面を有する、請求項1に記載の固体リチウム・イオン電池。
- 前記上部電極が、前記リチオ化カソード材料層と、前記固体電解質層と、前記リチウム核生成強化ライナーとの前記側壁面と前記垂直方向に整列された側壁面を有する、請求項3に記載の固体リチウム・イオン電池。
- 前記リチオ化カソード材料層が、LiCoO2からなり、前記固体電解質層がLiPONからなる、請求項1に記載の固体リチウム・イオン電池。
- 前記第1および第2のリチウム蓄積領域が、それぞれ前記リチウム核生成強化ライナーの最下部の表面および最上部の表面に連続して位置する、請求項1に記載の固体リチウム・イオン電池。
- 前記第1および第2のリチウム蓄積領域が、それぞれ前記リチウム核生成強化ライナーの最下部の表面および最上部の表面に不連続に位置する、請求項1に記載の固体リチウム・イオン電池。
- 前記下部電極の下に位置する基板をさらに含む、請求項1に記載の固体リチウム・イオン電池。
- 固体リチウム・イオン電池を形成する方法であって、
下部電極の表面の一部を物理的に露出させる開口部を含むパターン形成された犠牲材料を、前記下部電極の前記表面上に形成することと、
前記パターン形成された犠牲材料上と前記開口部内の前記下部電極の前記表面の前記物理的に露出させた部分上とに、リチウム・ベースの混合酸化物を含むリチオ化カソード材料層を形成することと、
前記リチオ化カソード材料層上にリチウム・イオンの伝導を可能にする固体材料の固体電解質層を形成することと、
前記固体電解質層上に、チタニウム・ジルコニウム・モリブデン合金(TZM)のリチウム核生成強化ライナーを形成することと、
前記リチウム核生成強化ライナー上に上部電極を形成することと、
前記下部電極から、前記パターン形成された犠牲材料と前記パターン形成された犠牲材料上に形成された材料とを除去する一方で、前記下部電極の前記表面の前記物理的に露出させた部分上の材料積層を維持して、当該積層が、前記リチオ化カソード材料層と、前記固体電解質層と、前記リチウム核生成強化ライナーと、前記上部電極とのそれぞれの残り部分を含むように、リフトオフ・プロセスを行うことと、
前記固体リチウム・イオン電池の充電/再充電を行って、前記充電/再充電中に、前記固体電解質層と前記リチウム核生成強化ライナーの間に第1のリチウム蓄積領域を形成し、前記リチウム核生成強化ライナーと前記上部電極の間に第2のリチウム蓄積領域を形成すること
を含む、方法。 - 前記第1および第2のリチウム蓄積領域が、それぞれ前記リチウム核生成強化ライナーの最下部の表面および最上部の表面に連続して位置する、請求項9に記載の方法。
- 前記第1および第2のリチウム蓄積領域が、それぞれ前記リチウム核生成強化ライナーの最下部の表面および最上部の表面に不連続的に位置する、請求項9に記載の方法。
- 前記下部電極の物理的に露出させた表面上および前記材料積層の周囲に位置する、空気または水分あるいはその両方に対して不透過性の構造部を形成することをさらに含む、請求項9に記載の方法。
- リフトオフ後に、前記リチオ化カソード材料層と、前記固体電解質層と、前記リチウム核生成強化ライナーとの前記残り部分が、前記下部電極の表面に対して垂直な垂直方向に互いに整列された側壁面を有する、請求項9に記載の方法。
- リフトオフ後に、前記上部電極の前記残り部分が、前記リチオ化カソード材料層と、前記固体電解質層と、前記リチウム核生成強化ライナーとの前記残り部分の側壁面と前記下部電極の表面に対して垂直な垂直方向に整列された側壁面を有する、請求項9に記載の方法。
- 前記リチオ化カソード材料層がLiCoO2からなり、前記固体電解質層がLiPONからなる、請求項9に記載の方法。
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US15/474,668 | 2017-03-30 | ||
US15/474,668 US10944128B2 (en) | 2017-03-30 | 2017-03-30 | Anode structure for solid-state lithium-based thin-film battery |
PCT/IB2018/051058 WO2018178775A1 (en) | 2017-03-30 | 2018-02-21 | Anode structure for solid-state lithium-based thin-film battery |
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US10950887B2 (en) | 2021-03-16 |
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