JP2017529672A - Pvdfバインダを含むプレリチウム化されたシリコンアノード - Google Patents
Pvdfバインダを含むプレリチウム化されたシリコンアノード Download PDFInfo
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Abstract
【選択図】図3
Description
上記要約は、詳細な説明でさらに述べる複数の概念からの選択を簡略化した形態で示すものであることは理解されよう。それは、請求項に記載の内容の要点および本質的な特徴を特定するものではなく、本発明の範囲は詳細な説明に続く特許請求の範囲によってのみ特定される。さらに、請求項に記載の内容は、上記のまたは本開示の一部で挙げた欠点を解決する実施態様に限定されない。
Claims (26)
- カソード集電材と当該カソード集電材の片面または両面上に配置された電気活性カソード材料とを含むカソード;
プレリチウム化されたアノード;
前記カソードと前記アノードとの間のセパレータ;
前記カソード、前記アノード、および前記セパレータに接している電解質;
を含むLiイオンバッテリであって、
前記プレリチウム化されたアノードは、アノード集電材と当該アノード集電材の片面または両面上に配置されたシリコン電気活性アノード材料とを含み、
前記シリコン電気活性アノード材料は、シリコンナノ構造と前記シリコン電気活性アノード材料中5wt.%以上の重量パーセントで存在しているPVDFバインダとを含む、Liイオンバッテリ。 - 前記シリコン電気活性アノード材料はさらに炭素系の導電性添加剤を含む、請求項1に記載のLiイオンバッテリ。
- 前記炭素系の導電性添加剤は、気相成長されたカーボンファイバ、伸長された黒鉛、カーボンブラック、またはこれらの組合せである、請求項2に記載のLiイオンバッテリ。
- 前記導電性添加剤は5wt.%未満で存在している、請求項2に記載のLiイオンバッテリ。
- 前記導電性添加剤は1wt.%以下で存在している、請求項2に記載のLiイオンバッテリ。
- 前記シリコンナノ構造はさらに表面コーティングを含む、請求項1に記載のLiイオンバッテリ。
- 前記表面コーティングは5wt.%以下である、請求項6に記載のLiイオンバッテリ。
- 前記表面コーティングは石油ピッチ粉末からなる、請求項6に記載のLiイオンバッテリ。
- 前記石油ピッチ粉末は炭化されたものである、請求項8に記載のLiイオンバッテリ。
- 前記電解質は、Li塩と少なくとも1種の有機溶剤とを含む、請求項1に記載のLiイオンバッテリ。
- 前記アノード集電材は銅からなる、請求項1に記載のLiイオンバッテリ。
- 前記PVDFバインダは12wt.%未満の重量パーセントで存在している、請求項1に記載のLiイオンバッテリ。
- 前記PVDFバインダは10wt.%で存在している、請求項1に記載のLiイオンバッテリ。
- 前記シリコンナノ構造はシリコンと黒鉛との複合粉末からなる、請求項1に記載のLiイオンバッテリ。
- 前記複合粉末はカーボン基材を含むシリコン粒子である、請求項14に記載のLiイオンバッテリ。
- 前記カーボン基材は黒鉛である、請求項15に記載のLiイオンバッテリ。
- 前記複合粉末は黒鉛基材上に成長したナノワイヤとして存在している、請求項14に記載のLiイオンバッテリ。
- Liイオンセル用のプレリチウム化されたアノードを作製する方法であって、
シリコンと黒鉛との複合粉末からなり、前記シリコンがナノ構造として存在している負極活材料を入手し、
前記負極活材料を5wt.%未満の導電性添加剤および5〜12wt.%の範囲のPVDFバインダと合わせて、混合物を得、
前記混合物を銅製の集電材上に塗工して積層物を形成し、
前記積層物を加圧してアノードを生成し、
前記アノードをプレリチウム化する、方法。 - 前記PVDFバインダは10wt.%で存在している、請求項18に記載の方法。
- 前記シリコンのナノ構造は黒鉛基材上に成長したシリコンナノワイヤである、請求項18に記載の方法。
- 前記導電性添加剤は、気相成長されたカーボンファイバ、伸長された黒鉛、カーボンブラック、またはこれらの組合せである、請求項18に記載の方法。
- 前記導電性添加剤は1wt.%以下で存在している、請求項18に記載の方法。
- 前記シリコンのナノ構造はさらに表面コーティングを含む、請求項18に記載の方法。
- 前記表面コーティングは5wt.%以下である、請求項23に記載の方法。
- 前記表面コーティングは石油ピッチ粉末からなる、請求項23に記載の方法。
- 前記石油ピッチ粉末は炭化されたものである、請求項25に記載の方法。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462057129P | 2014-09-29 | 2014-09-29 | |
| US62/057,129 | 2014-09-29 | ||
| PCT/US2015/053033 WO2016054105A1 (en) | 2014-09-29 | 2015-09-29 | Pre-lithiated silicon anodes with pvdf binder |
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| JP2020019799A Division JP2020074340A (ja) | 2014-09-29 | 2020-02-07 | Liイオンバッテリ |
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| JP6660380B2 JP6660380B2 (ja) | 2020-03-11 |
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| JP2017516498A Active JP6660380B2 (ja) | 2014-09-29 | 2015-09-29 | Pvdfバインダを含むプレリチウム化されたシリコンアノードの作製方法 |
| JP2020019799A Pending JP2020074340A (ja) | 2014-09-29 | 2020-02-07 | Liイオンバッテリ |
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| US (2) | US20170301910A1 (ja) |
| EP (1) | EP3201982B1 (ja) |
| JP (2) | JP6660380B2 (ja) |
| KR (1) | KR20170061677A (ja) |
| CN (1) | CN107004844B (ja) |
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| TWI689127B (zh) * | 2014-12-01 | 2020-03-21 | 英商強生麥特公司 | 用於鋰離子電池組的陽極材料以及製造與使用其之方法 |
| KR20190138847A (ko) | 2017-04-17 | 2019-12-16 | 로베르트 보쉬 게엠베하 | 예비 리튬화된 실리콘 양극 및 제조 방법 |
| JP6996414B2 (ja) * | 2017-12-08 | 2022-01-17 | トヨタ自動車株式会社 | 硫化物固体電池の製造方法 |
| WO2019147084A1 (ko) | 2018-01-25 | 2019-08-01 | 주식회사 엘지화학 | 리튬 이차전지용 음극의 제조방법 |
| CN110085865B (zh) | 2018-01-26 | 2021-07-23 | 财团法人工业技术研究院 | 水溶液锂离子电池及用于其中的电极 |
| JP7237092B2 (ja) * | 2018-09-27 | 2023-03-10 | エルジー エナジー ソリューション リミテッド | 全固体電池用負極及びその製造方法 |
| KR102530195B1 (ko) * | 2019-01-18 | 2023-05-10 | 주식회사 엘지에너지솔루션 | 이차전지용 음극의 제조방법 |
| KR102586822B1 (ko) * | 2019-01-25 | 2023-10-11 | 주식회사 엘지에너지솔루션 | 이차전지용 음극의 제조방법 |
| CN111864181A (zh) * | 2019-04-25 | 2020-10-30 | 中国科学院物理研究所 | 预锂化的硅负极及其制备方法和应用 |
| US20200388825A1 (en) * | 2019-06-10 | 2020-12-10 | GM Global Technology Operations LLC | Pre-cycled silicon electrode |
| JP7580847B2 (ja) * | 2020-10-26 | 2024-11-12 | エルジー エナジー ソリューション リミテッド | 負極の製造方法 |
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| KR101951323B1 (ko) * | 2012-09-24 | 2019-02-22 | 삼성전자주식회사 | 복합음극활물질, 이를 포함하는 음극 및 리튬전지, 및 이의 제조 방법 |
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2015
- 2015-09-29 WO PCT/US2015/053033 patent/WO2016054105A1/en not_active Ceased
- 2015-09-29 CN CN201580053380.8A patent/CN107004844B/zh active Active
- 2015-09-29 EP EP15848040.0A patent/EP3201982B1/en active Active
- 2015-09-29 KR KR1020177008344A patent/KR20170061677A/ko not_active Withdrawn
- 2015-09-29 JP JP2017516498A patent/JP6660380B2/ja active Active
- 2015-09-29 US US15/515,573 patent/US20170301910A1/en not_active Abandoned
- 2015-09-30 TW TW104132014A patent/TW201624819A/zh unknown
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2020
- 2020-02-07 JP JP2020019799A patent/JP2020074340A/ja active Pending
- 2020-04-24 US US16/858,487 patent/US20200259164A1/en not_active Abandoned
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2020074340A (ja) | 2020-05-14 |
| EP3201982A4 (en) | 2018-03-21 |
| US20200259164A1 (en) | 2020-08-13 |
| WO2016054105A1 (en) | 2016-04-07 |
| KR20170061677A (ko) | 2017-06-05 |
| US20170301910A1 (en) | 2017-10-19 |
| CN107004844B (zh) | 2020-07-21 |
| JP6660380B2 (ja) | 2020-03-11 |
| CN107004844A (zh) | 2017-08-01 |
| EP3201982B1 (en) | 2020-05-27 |
| EP3201982A1 (en) | 2017-08-09 |
| TW201624819A (zh) | 2016-07-01 |
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