JP6053751B2 - 金属繊維を含む電極構造体を有する電池、及び前記電極構造体の製造方法 - Google Patents
金属繊維を含む電極構造体を有する電池、及び前記電極構造体の製造方法 Download PDFInfo
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Description
、充放電効率及びサイクル特性が向上した電池を提供することができる。
Claims (11)
- 一つ以上の金属繊維により形成された導電性ネットワークと、
前記導電性ネットワークに束縛された、粒子状の第1電気的活物質および前記金属繊維の一部または全部の表面上にプリコーティングされた第2電気的活物質、並びに第1の結着粒子を含む粒子組成物と、を含み、
前記第1の結着粒子は、前記一つ以上の金属繊維と前記第1電気的活物質との間、及び複数の前記第1電気的活物質の間に、点結着の形態で提供され、
前記第2電気的活物質は、前記第1電気的活物質と同一であるか、または化学的親和度を有する他の種類の活物質であり、第2の結着粒子を用いてプリコーティングされていることを特徴とする電極構造体を有する電池。 - 前記金属繊維は、ランダムに互いに物理的にのみ接触して、互いに結合され、前記導電性ネットワークは、不織布構造を有することを特徴とする請求項1に記載の電極構造体を有する電池。
- 前記粒子組成物は、導電材及び多孔性セラミック粒子のうちいずれか一つまたは全てをさらに含むことを特徴とする請求項1に記載の電極構造体を有する電池。
- 前記金属繊維は、2μmないし20μmの範囲内の直径を有することを特徴とする請求項1に記載の電極構造体を有する電池。
- 前記金属繊維は、ステンレス鋼、アルミニウム、ニッケル、チタン及び銅、またはそれらの合金のうちいずれか一つまたはそれらの組み合わせを含むことを特徴とする請求項1に記載の電極構造体を有する電池。
- 前記金属繊維の平均直径dに対する前記粒子状の電気的活物質の平均サイズsの比s/dは、0.01ないし10であることを特徴とする請求項1に記載の電極構造体を有する電池。
- 導電性ネットワークを形成する一つ以上の金属繊維をランダムに配列して、互いにもつれさせて互いに物理的に接触させて、不織布構造を有する繊維層を提供するステップと、前記金属繊維の一部または全部の表面上に、第2電気的活物質をプリコーティングするステップと、
粒子状の第1電気的活物質および第1の結着粒子を含む粒子組成物を提供するステップと、
前記繊維層の、前記第2電気的活物質がプリコーティングされた前記金属繊維と、前記粒子組成物とを混合するステップと、
混合された前記繊維層の前記金属繊維と、前記粒子組成物とを圧着するステップと、を含み、
前記金属繊維の一部または全部の表面上に、前記第2電気的活物質をプリコーティングするステップは、前記金属繊維の表面上に、第2の結着粒子を用いて、前記第2電気的活物質がプリコーティングされるステップを含み、
前記粒子組成物は、粒子状の前記第1電気的活物質および前記第1の結着粒子を用いる乾式ミキシング工程を通じて、前記繊維層上に、無溶媒の乾式粉体状に提供され、
前記圧着するステップと同時に、前記粒子組成物に加熱または紫外線を適用することにより、前記第1の結着粒子は、溶解されて、前記一つ以上の金属繊維と前記第1電気的活物質との間に点結着の形態で提供され、
前記第2電気的活物質は、前記第1電気的活物質と同一であるか、または化学的親和度を有する他の種類の活物質であることを特徴とする電極構造体の製造方法。 - 前記混合するステップは、前記繊維層内に、前記粒子組成物を振り掛けることによって、前記繊維層の前記金属繊維と前記粒子組成物とを混合することを特徴とする請求項7に記載の電極構造体の製造方法。
- 前記第1の結着粒子と前記第1電気的活物質とは、乾式ミキシング工程を通じて混合されることを特徴とする請求項7に記載の電極構造体の製造方法。
- 前記粒子組成物は、前記粒子状の第1電気的活物質と共に混合される導電材粒子、及び多孔性セラミック粒子のうちいずれか一つ、またはそれらの組み合わせから選択された外添剤をさらに含み、
前記外添剤と前記第1電気的活物質とは、乾式ミキシング工程を通じて混合されることを特徴とする請求項7に記載の電極構造体の製造方法。 - 前記加熱は、50℃ないし400℃で行われることを特徴とする請求項7に記載の電極構造体の製造方法。
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KR10-2011-0031917 | 2011-04-06 | ||
KR1020110031917A KR101806547B1 (ko) | 2011-04-06 | 2011-04-06 | 금속 섬유를 포함하는 전극 구조체를 갖는 전지 및 상기 전극 구조의 제조 방법 |
PCT/KR2012/002517 WO2012138115A2 (ko) | 2011-04-06 | 2012-04-04 | 금속 섬유를 포함하는 전극 구조체를 갖는 전지 및 상기 전극 구조의 제조 방법 |
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KR20230018802A (ko) * | 2021-07-30 | 2023-02-07 | 주식회사 엘지에너지솔루션 | 이차 전지용 전극, 이의 제조방법, 및 상기 전극을 포함하는 이차 전지 |
EP4368314A1 (en) * | 2022-11-11 | 2024-05-15 | batene GmbH | Three-dimensional network of metal fibers and production method |
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KR101088073B1 (ko) * | 2010-10-16 | 2011-12-01 | 주식회사 샤인 | 금속 장섬유를 포함하는 전극 구조를 갖는 전지 및 이의 제조 방법 |
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KR101806547B1 (ko) | 2018-01-10 |
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KR20120114117A (ko) | 2012-10-16 |
WO2012138115A3 (ko) | 2013-01-10 |
EP2696399B1 (en) | 2019-01-16 |
JP2014510386A (ja) | 2014-04-24 |
US20140030605A1 (en) | 2014-01-30 |
US9929409B2 (en) | 2018-03-27 |
ES2719268T3 (es) | 2019-07-09 |
CN103620828B (zh) | 2017-01-25 |
CN103620828A (zh) | 2014-03-05 |
WO2012138115A2 (ko) | 2012-10-11 |
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