JP2022500828A - 金属電極を含む放電状態で組み立てられた再充電可能な電気化学セル - Google Patents
金属電極を含む放電状態で組み立てられた再充電可能な電気化学セル Download PDFInfo
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0563—Liquid materials, e.g. for Li-SOCl2 cells
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Abstract
Description
・ 熱処理された金属箔は、現在の電極製造過程よりも飛躍的な製造の簡素化を示す。
・ 電池セルを構成するすべての化学物質は豊富であり、費用対効果が高い。
・ 説明されている電池技術は、任意の生産量に簡単に規模を拡大できる。
・ 予想される高い電池寿命のために、電池セルの寿命コストが大幅に改善され、寿命要件がより高水準で満たされる。
a.多成分金属箔を加熱装置に導入し、
b.加熱装置内の箔を、多成分金属箔の少なくとも1つの金属成分を蒸発、分解、反応するか、他の方法で完全にまたは部分的に除去する温度に加熱する。
・ 所与のアノード過電圧で、金属ナトリウムの堆積/剥離速度は、既知の有機溶媒よりも1桁大きく、
・ 銅基板上に非樹枝状ナトリウムの堆積を可能にし、
・ 電解質は電着ナトリウムに対して不活性であるため、アノードSEIはなく、
・ 電解質電位窓はナトリウムに対して約3Vであるため、2.5〜3 Vの充電制限を使用した場合、カソード側でも完全に不活性のままである。
・ アンモニアは、少なくともリチウムイオン電池に用いられる有機溶媒よりも一桁安価で、NaBH4/NaBF4塩もリチウムイオン電池に用いられるLiPF6塩よりも著しく安価である。
・ NaBF4×2.5NH3組成は−40℃まで液体のままである。
Claims (21)
- 放電状態で組み立てられた再充電可能な電気化学セルであって、放電状態にあるときに、アノードに唯一なる導電性アノード集電体、および活物質として金属材料のみを含むカソードとを備え、充電中に前記アノード集電体の表面および/または内部に固体金属堆積物が形成される、電気化学セル。
- 前記カソードが、実質的に純粋な金属カソードである、および/または、分散液中の純粋な金属活物質を含むカソードである、請求項1に記載の電気化学セル。
- 前記カソードが導電性カソード集電体と接触している、または前記カソードの全部または一部が導電性カソード集電体としても機能する、請求項2に記載の電気化学セル。
- 充電中に、少なくとも部分的に前記カソードから、塩が形成される、請求項1〜3のいずれか一項に記載の電気化学セル。
- 前記アノード集電体および前記カソードが実質的に同じ材料を含む、請求項1〜4のいずれか一項に記載の電気化学セル。
- 前記アノード集電体および/または前記カソードがドープされている、請求項1〜5のいずれか一項に記載の電気化学セル。
- 前記アノード集電体および/または前記カソードが銅またはドープされた銅を含む、請求項1〜6のいずれか一項に記載の電気化学セル。
- 前記カソードおよび/または前記アノード集電体が、実質的に純粋な金属銅またはドープされた銅を含む、請求項1〜7のいずれか一項に記載の電気化学セル。
- ドーパントが亜鉛である、請求項1〜8のいずれか一項に記載の電気化学セル。
- イオン交換構造が前記アノード集電体と前記カソードとの間に位置する、請求項1〜9のいずれか一項に記載の電気化学セル。
- 前記イオン交換構造が、前記カソードで形成された金属塩に含まれる陽イオンの移動を防止する、および/またはアルカリ金属陽イオンまたは陰イオンの選択的輸送を可能にする、請求項10に記載の電気化学セル。
- 前記カソードおよび/または前記アノード集電体が多孔質である、請求項1〜11のいずれか一項に記載の電気化学セル。
- 前記カソードおよび/または前記アノード集電体が、金属混合物および/または合金からの1つまたは複数の元素の蒸発によって多孔質にされる、請求項1〜12のいずれか一項に記載の電気化学セル。
- 1つまたは複数の電気化学的に活性な材料を前記カソードおよび/または前記アノード集電体に導入することによって、前記カソードおよび/または前記アノード集電体が電気化学的に活性化される、請求項1〜13のいずれか一項に記載の電気化学セル。
- カソードがアノード集電体になり、アノード集電体がカソードになるように、セルの極性が逆向きである、請求項1〜14のいずれか一項に記載の電気化学セル。
- 前記カソードが多孔質であり、活物質としての金属材料のみを含み、ドーパントを含む、電気化学セル用のカソード。
- 電気化学セル用の多孔質電極または集電体を製造するための方法で、
a.多成分金属箔を加熱装置に導入する工程と、
b.加熱装置内の箔を、多成分金属箔の少なくとも1つの金属成分を蒸発、分解、反応、または他の方法で完全にまたは部分的に除去する温度に加熱する工程と
を含む、方法。 - 請求項17に記載の方法に従って製造された、多孔質の単一成分もしくは多成分の電極または集電体箔または請求項16に記載のカソード。
- 請求項16に記載のカソードおよび/または請求項18に記載の多孔質の単一成分もしくは多成分の電極または集電体箔を含む、請求項1〜15のいずれか一項に記載の電気化学セル。
- 請求項1〜15または請求項19のいずれか一項に記載の電気化学セルの、電池パックにおける使用。
- 請求項1〜15または請求項19のいずれか一項に記載の電気化学セルおよび/または請求項20に記載の電池パックの、装置における使用。
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