JP7637189B2 - 電池セルアッセンブリを製造する方法、電池セルアッセンブリおよび電池セル - Google Patents
電池セルアッセンブリを製造する方法、電池セルアッセンブリおよび電池セル Download PDFInfo
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Description
本特許出願は、参照によりその全文が本明細書に明示的に組み込まれる、2017年12月22日出願の、表題「Reliable Energy Storage Devices with Flexible Ceramic Layer Separating Electrodes」の米国特許仮出願第62/609796号の利益を主張する。
Claims (39)
- 第1の電極、第2の電極およびセパレータを含む電池セルアッセンブリを製造する方法であって、
(A1)金属酸化物、金属水酸化物または金属オキシ水酸化物の繊維および溶媒組成物を含む分散体を用意し、
(A2)前記第1の電極のロール上に直接前記分散体をコーティングして、前記第1の電極上に前記セパレータの第1の層を形成し、
(A3)前記第2の電極を設け、
(A4)前記第1の電極と前記第2の電極との間に前記セパレータを介在させて前記第1の電極および前記第2の電極を組み立て、
前記セパレータの厚さが、0.5μm~10μmの範囲であり、
前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維は、3nm~2μmの直径範囲の直径および20~100,000の範囲のアスペクト比によって特徴付けられ、
前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維は、(1)前記直径範囲の第1の直径下位範囲内にある第1の平均直径、および第1の平均アスペクト比を有する前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維の第1のセット、および(2)前記直径範囲の第2の直径下位範囲にある第2の平均直径および第2の平均アスペクト比を有する前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維の第2のセットを含む方法。 - 少なくとも前記第1の層を40℃~200℃の温度範囲で熱処理する工程を更に含む請求項1に記載の方法。
- 前記(A3)は、前記第2の電極のロール上に直接前記分散体をコーティングして前記セパレータの第2の層を形成する工程を含む請求項1に記載の方法。
- 前記セパレータは、スタンドアロンのセパレータ層を含まない請求項1に記載の方法。
- 前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維は、2原子%~40原子%のアルミニウム(Al)を含む請求項1に記載の方法。
- 前記セパレータは、0.1重量%~50重量%の範囲の高分子を更に含む請求項1に記載の方法。
- 前記高分子は、70℃~120℃の範囲で溶融する熱可塑性物質を含む請求項6に記載の方法。
- 前記高分子は、高分子バインダーを含む請求項6に記載の方法。
- 前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維の少なくとも一部は焼結または化学結合によって互いに結合されている請求項1に記載の方法。
- 前記セパレータの気孔率は、25体積%~80体積%の範囲である請求項1に記載の方法。
- 前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維間の全細孔容積は0.1cm3/g~1cm3/gの範囲である請求項1に記載の方法。
- 前記第1の電極はアノード電極であり、
前記アノード電極は、3重量%~70重量%のシリコン(Si)を含む請求項1に記載の方法。 - 前記溶媒組成物は、水、アルコール、グリコール、グリコールエーテル、エーテル、N-メチル-2-ピロリドン(NMP)、ジメチルホルムアミド(DMF)、メチルエチルケトン(MEK)、ヘキサメチルホス-フォラミド、シクロペンタノン、アセトニトリル、テトラメチレンスルホキシド、およびε-カプロラクトンを1または複数含む請求項1に記載の方法。
- 前記分散体の前記コーティングは、スプレーコーティング、スロットダイコーティング、グラビアコーティング、浸漬コーティング、ローラーコーティング、および/またはナイフエッジコーティングにより実施される請求項1に記載の方法。
- 前記セパレータは、0.1mm~3cmの範囲の最小曲げ半径を示す請求項1に記載の方法。
- 前記セパレータは、1MPa~1,000MPaの範囲の引張強さを示す請求項1に記載の方法。
- 前記セパレータは、10nm~1μmの範囲の細孔排除サイズを示す請求項1に記載の方法。
- 機能性表面コーティングを前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維上に堆積させ、表面層厚さを0.3nm~30nmの範囲にし、前記機能性表面コーティングは、高分子、炭素、誘電体、および/または異なるセラミック材料を含む請求項1に記載の方法。
- アルコキシド前駆体繊維の変換によって前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維を製造する工程を更に含む請求項1に記載の方法。
- 前記第1の直径下位範囲は、5nm~8nmであり、
前記第2の直径下位範囲は40nm~60nmである請求項1に記載の方法。 - 前記第1の平均アスペクト比は1,000であり、
前記第2の平均アスペクト比は150~250である請求項1に記載の方法。 - 第1の電極、
第2の電極、および
前記第1の電極と前記第2の電極との間に介在するセパレータ
を備え、
前記セパレータは、金属酸化物、金属水酸化物または金属オキシ水酸化物の繊維を含む第1の層を備え、前記第1の層は前記第1の電極上に直接堆積され、
前記セパレータの厚さは、0.5μm~10μmの範囲であり、
前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維は、3nm~2μmの直径範囲の直径および20~100,000の範囲のアスペクト比によって特徴付けられ、
前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維は、(1)前記直径範囲の第1の直径下位範囲内にある第1の平均直径および第1の平均アスペクト比を有する前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維の第1のセット、および(2)前記直径範囲の第2の直径下位範囲内にある第2の平均直径および第2の平均アスペクト比を有する前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維の第2のセットを含む電池セルアッセンブリ。 - 前記セパレータは、金属酸化物、金属水酸化物または金属オキシ水酸化物の繊維を含む第2の層を備え、前記第2の層は前記第1の層上に堆積される請求項22に記載の電池セルアッセンブリ。
- 前記セパレータは、スタンドアロンのセパレータ層を含まない請求項22に記載の電池セルアッセンブリ。
- 前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維は、2原子%~40原子%のアルミニウム(Al)を含む請求項22に記載の電池セルアッセンブリ。
- 前記セパレータは、0.1重量%~50重量%の範囲の高分子を更に含む請求項22に記載の電池セルアッセンブリ。
- 前記高分子は、70℃~120℃の範囲に融点を有する熱可塑性物質を含む請求項26に記載の電池セルアッセンブリ。
- 前記高分子は、高分子バインダーを含む請求項26に記載の電池セルアッセンブリ。
- 前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維の少なくとも一部は焼結または化学結合によって互いに結合されている請求項22に記載の電池セルアッセンブリ。
- 前記セパレータの気孔率は、25体積%~80体積%の範囲である請求項22に記載の電池セルアッセンブリ。
- 前記金属酸化物の繊維間の全細孔容積は0.1cm3/g~1cm3/gの範囲にある請求項22に記載の電池セルアッセンブリ。
- 前記第1の電極はアノード電極であり、
前記アノード電極は、3重量%~70重量%のシリコン(Si)を含む請求項22に記載の電池セルアッセンブリ。 - 前記セパレータは、0.1mm~3cmの範囲の最小曲げ半径を示す請求項22に記載の電池セルアッセンブリ。
- 前記セパレータは、1MPa~1,000MPaの範囲の引張強さを示す請求項22に記載の電池セルアッセンブリ。
- 前記セパレータは、10nm~1μmの範囲の細孔排除サイズを示す請求項22に記載の電池セルアッセンブリ。
- 前記金属酸化物、前記金属水酸化物、または前記金属オキシ水酸化物の繊維は、0.3nm~30nmの範囲の表面層厚さを示す機能性表面コーティングを備え、前記機能性表面コーティングは、高分子、炭素、誘電体、および/またはセラミック材料を含む請求項22に記載の電池セルアッセンブリ。
- 前記第1の直径下位範囲は、5nm~8nmであり、
前記第2の直径下位範囲は40nm~60nmである請求項22に記載の電池セルアッセンブリ。 - 前記第1の平均アスペクト比は1,000であり、
前記第2の平均アスペクト比は150~250である請求項22に記載の電池セルアッセンブリ。 - 請求項22に記載の電池セルアッセンブリ;および
電解質、
を備え、前記電解質は、前記電池セルアッセンブリの前記セパレータに浸透されている電池セル。
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- 2018-12-18 CN CN202310855952.0A patent/CN116864912A/zh active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112042005A (zh) | 2020-12-04 |
| EP3729541A4 (en) | 2021-10-13 |
| US20190198837A1 (en) | 2019-06-27 |
| WO2019126208A1 (en) | 2019-06-27 |
| CN112042005B (zh) | 2023-07-07 |
| JP2025081436A (ja) | 2025-05-27 |
| KR102791831B1 (ko) | 2025-04-03 |
| JP2021508915A (ja) | 2021-03-11 |
| JP7304351B2 (ja) | 2023-07-06 |
| KR20200101958A (ko) | 2020-08-28 |
| EP4586388A3 (en) | 2025-09-10 |
| JP2023120398A (ja) | 2023-08-29 |
| US20220359950A1 (en) | 2022-11-10 |
| EP4586388A2 (en) | 2025-07-16 |
| CN116864912A (zh) | 2023-10-10 |
| EP3729541B1 (en) | 2025-07-09 |
| EP3729541A1 (en) | 2020-10-28 |
| KR20250048608A (ko) | 2025-04-09 |
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