JP7271601B2 - バイポーラ電池アセンブリに有用な電池プレート及び調製方法 - Google Patents
バイポーラ電池アセンブリに有用な電池プレート及び調製方法 Download PDFInfo
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/029—Bipolar electrodes
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Description
Claims (19)
- 電池プレートを組み立てる方法であって、
a)移送シートを電極モールド内の可動プレート上に配置することであって、前記可動プレートは、前記電極モールド内の開口部の反対側に配置され、前記電極モールド内の前記開口部の方向へ前記開口部を通して移動可能である、前記移送シートを前記電極モールド内の前記可動プレート上に配置することと、
b)少なくとも前記可動プレートにより形成される形状で活物質が層を形成するように、前記活物質をペーストの形態で前記可動プレート上の前記移送シートの上に射出することと、
c)前記活物質を配置することが望まれる基板の表面のうちの一表面の領域が、前記モールド内の前記活物質と整列するように、前記基板を前記モールドの前記開口部の上に配置することと、
d)前記活物質を前記基板に接触させて接合することと、
e)前記基板の前記表面のうちの一表面に、前記活物質が接合して残り、前記基板の前記表面のうちの一表面に接合した前記活物質の表面の反対側の前記活物質の表面に、前記移送シートが接合して残るように、前記可動プレートを前記基板から引き離すことと、
を含む、前記方法。 - 前記可動プレートを前記モールドの前記開口部を通して延ばして、前記活物質を前記基板に接触させて接合することを含む、請求項1に記載の方法。
- 前記可動プレートを前記基板から引き離すことには、前記可動プレートを前記基板から引き離して前記モールド内に戻すことが含まれる、請求項1または2に記載の方法。
- 前記電池プレートは、第1の表面、それに対向する第2の表面、及び1つ以上の非平面構造を有する基板を備える、請求項1~3のいずれかに記載の方法。
- 前記電池プレートは非導電性ポリマーで構成される、請求項1~4のいずれかに記載の方法。
- 前記基板の第1の表面、第2の表面、または両表面から1つ以上の突出部が延在し、前記1つ以上の突出部は、前記基板と一体である、請求項1~5のいずれかに記載の方法。
- 前記活物質を前記基板に付着させている間に、前記活物質は、前記基板から突出する前記1つ以上の突出部に順応する、請求項6に記載の方法。
- 前記活物質を前記基板に付着させた後、前記1つ以上の突出部は、前記活物質内に配置され、前記活物質を超えて延在しない、請求項7に記載の方法。
- 前記モールドは、前記モールドの周縁に側壁を有し、前記側壁は、前記可動プレートの移動方向に対し略垂直であり、
前記モールドは、前記モールド内の前記開口部上に配置することができるカバーを有し、前記カバーは、前記モールド内に電極を形成することが可能な前記活物質を射出する1つ以上のオリフィスを有し、
前記方法は、
i)前記移送シートを前記モールド内に配置した後、前記モールド上に前記カバーを閉じることと、
ii)前記カバーの前記1つ以上のオリフィスを通して、前記活物質を前記移送シート上に射出することと、
iii)前記可動プレートを延ばす前に、前記モールド上から前記カバーを取り外すことと、
を含む、請求項1~8のいずれかに記載の方法。 - f)第2の移送シートを前記電極モールド内の同じまたは異なる可動プレート上に配置することであって、前記可動プレートは、前記電極モールド内の開口部の反対側に配置され、前記電極モールド内の前記開口部の方向へ前記開口部を通して移動可能である、前記第2の移送シートを前記電極モールド内の同じまたは異なる可動プレート上に配置することと、
g)少なくとも前記可動プレートにより形成される形状で活物質が層を形成するように、前記活物質をペーストの形態で前記可動プレート上の前記第2の移送シートの上に射出することと、
h)前記活物質が既に接合された前記表面の反対側にあり、前記活物質を配置することが望まれる前記基板の前記表面のうちの一表面の領域が、前記モールド内の前記活物質と整列するように、前記基板を前記モールドの前記開口部の上に配置することと、
i)対向表面上に既に接合された前記活物質とは反対側において、前記基板に前記活物質を接触させて接合することと、
j)前記基板の前記表面のうちの一表面に、前記活物質が接合して残り、前記基板の前記表面のうちの一表面に接合した前記活物質の表面の反対側の前記活物質の表面に、前記第2の移送シートが接合して残るように、前記可動プレートを前記基板から引き離すことと、
をさらに含む、請求項1または9に記載の方法。 - 前記可動プレートを前記モールドの前記開口部を通して延ばして、既に接合された前記活物質とは反対側において、前記活物質を前記基板に接触させて接合することを含む、請求項10に記載の方法。
- 前記可動プレートを前記基板から引き離すことには、前記可動プレートを前記基板から引き離して前記モールド内に戻すことが含まれる、請求項10または11に記載の方法。
- 前記基板の一表面上の前記活物質は、カソードを形成し、前記基板の反対表面上の前記活物質は、アノードを形成する、請求項1~12のいずれかに記載の方法。
- 前記モールドは、1つ以上の挿入部を含み、前記1つ以上の挿入部は、前記モールド内に前記活物質を射出する際、前記活物質内に1つ以上のボイドを形成するように機能し、
前記方法は、前記モールド内に前記移送シートを配置する際、前記移送シートの1つ以上の開口部を通して、前記1つ以上の挿入部を延ばすことを含み、
前記方法は、前記活物質を前記移送シート上に射出する際、前記活物質内に前記1つ以上のボイドを形成することを含む、
請求項1~13のいずれかに記載の方法。 - 前記活物質の前記1つ以上のボイド及び前記移送シートの前記1つ以上の開口部は、前記基板の1つ以上の突出部と合致し、前記活物質を前記基板上に配置する際、前記1つ以上の開口部及びボイドは、前記1つ以上の突出部を受け入れ通す、請求項14に記載の方法。
- 前記移送シートは、液体電解質が前記移送シートを通過することを可能にする一方、1つ以上の前記活物質が前記移送シートの複数の孔を通り抜けることは阻止するように適合された多孔質材料を含む、請求項1~15のいずれかに記載の方法。
- 前記多孔質材料の前記複数の孔は、各々、35μm以上~2000μm以下の大きさである、請求項16に記載の方法。
- 前記移送シートは、織られた、織られていない、押し出された、またはこれらの任意の組み合わせのガラス、ポリマー、またはその両方から成るシートを含む、請求項1~17のいずれかに記載の方法。
- 前記基板は、前記基板の周縁にあるフレームを有し、
前記活物質及び前記移送シートが、前記フレームの内側に配置されるように、前記活物質及び前記移送シートは、前記フレームの前記内側の断面積より小さい断面積を有する、
請求項1~18のいずれかに記載の方法。
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