JP6173595B2 - 鉛酸電池の非製錬リサイクル用の装置及び方法 - Google Patents
鉛酸電池の非製錬リサイクル用の装置及び方法 Download PDFInfo
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- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
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- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
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- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
- C25C7/08—Separating of deposited metals from the cathode
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Description
本発明の分野は鉛酸電池のリサイクルであり、とりわけ製錬を必要とせず水溶液を利用して連続的に実施できるリサイクル装置及び方法に関するものである。
本発明者らは、鉛酸電池材料を、概念的にシンプルに、そのうえ効果的にリサイクルできることを見出した。すべての鉛材料は、グリッド鉛材料、特にグリッド及びコンタクト/バスバーを清浄にするのを促進し、同時に酸化鉛及び硫酸鉛を含むすべての鉛活物質を溶解する多機能の電解処理溶媒で処理される。また、その同じ溶媒は、活物質の溶解による鉛イオンをロードすると、さらなるサイクルに向けて電解処理溶媒を再生しつつ高純度の鉛の連続生成を可能にする電解処理を受け得る。
本明細書に記載されるすべての方法は、本書に別段の記載がなく、文脈により明らかに矛盾しない限り、任意の適切な順序で実施することができる。いずれかもしくはすべての例の使用、または、本明細書の特定の実施形態のために提供される例示的な言語(例えば、「など」)は、単に、本発明をより明確にすることを意図しており、本発明さもなくば請求項に係る本発明の範囲を限定するものではない。本明細書の文言は、本発明の実施に必須の請求されていない要素を示すものと解釈されるべきではない。
Claims (33)
- 鉛酸電池から鉛材料を処理する方法であって、
グリッド鉛と硫酸鉛を含む鉛活物質とを含有する鉛材料を提供し、選択的に前記鉛活物質を溶解するために前記鉛材料をアルカンスルホン酸及び7未満のpHを有するキレート剤の水溶液である電解処理溶媒に接触させ、鉛イオンに富む電解処理溶媒及び固体グリッド鉛を形成することと、
前記鉛イオンに富む電解処理溶媒から前記グリッド鉛の少なくとも一部を除去することと、
前記鉛イオンに富む電解処理溶媒中の鉛イオンを、少なくとも98%の純度の鉛及び再生電解処理溶媒を生成するためにカソード上で還元することと、を有している。 - 前記鉛活物質は予め脱硫されていない請求項1に記載の方法。
- 前記電解処理溶媒が5質量%から50質量%までの量のアルカンスルホン酸及び0.5質量%から20質量%までの量のキレート剤を含む、請求項1に記載の方法。
- 前記カソードから前記少なくとも98%の純度の鉛の少なくとも一部を除去するさらなるステップと同時に、前記鉛イオンの還元が実施される請求項1に記載の方法。
- 5g/cm3未満の密度を有するマイクロまたはナノ多孔質混合マトリックスを形成する条件下で、前記鉛イオンの還元が実施される請求項1に記載の方法。
- 前記鉛イオン還元のステップ中に、前記カソードが前記鉛イオンに富む電解処理溶媒に対して移動される、請求項1に記載の方法。
- 前記再生電解処理溶媒から硫酸塩および/または鉛以外の金属イオンを除去するステップをさらに含む請求項1に記載の方法。
- 前記鉛材料を前記電解処理溶媒に接触させるステップで、前記再生電解処理溶媒の少なくとも一部を使用するステップをさらに含む請求項1に記載の方法。
- 鉛材料を提供し、鉛材料を接触させ、前記グリッド鉛の少なくとも一部を除去し、及び、鉛イオンを還元する前記ステップが、連続的に処理できるように実施される請求項1に記載の方法。
- 少なくとも98%の純度の鉛を鉛イオンに富む電気処理溶媒から連続的かつ電気化学的に製造する方法であって、
キレート剤を含む鉛イオンに富む電解処理溶媒を提供することと、
アノードおよびカソードを含み、前記アノードと前記カソードとの間に膜または他のセパレータを含んでいない電解セルを提供することと、
前記アノード上で前記キレート剤を有意に破壊せずに、前記鉛イオンに富む電解処理溶媒中の鉛イオンを前記カソード上で還元し、付着性のある少なくとも98%の純度の鉛及び再生電解処理溶媒を形成することと、
カソードの一部から前記付着性のある少なくとも98%の純度の鉛を前記カソードの他の部分上で鉛イオンが還元される間に除去することと、
前記再生電解処理溶媒の少なくとも一部をグリッド鉛及び鉛活物質を含む鉛材料に接触させ、前記鉛イオンに富む電解処理溶媒の少なくとも一部を生成することと、を含んでいる。 - 前記鉛イオンに富む電解処理溶媒を形成するため、電解処理溶媒中に鉛活物質を溶解する工程をさらに含む請求項10に記載の方法。
- 前記鉛活物質は予め脱硫されていない請求項11に記載の方法。
- 前記鉛イオンに富む電解処理溶媒は、5質量%から50質量%までの量のアルカンスルホン酸及び0.5質量%から20質量%までの量の前記キレート剤を含む請求項11に記載の方法。
- 前記鉛イオンを還元する前記ステップ中に、前記鉛イオンに富む電解処理溶媒に対して前記カソードが移動される、請求項11に記載の方法。
- 前記付着性のある少なくとも98%の純度の鉛は非剥離の方法でハーベスタ面により除去され、前記ハーベスタ面は前記カソードに近接して配置される、請求項11に記載の方法。
- 前記付着性のある少なくとも98%の純度の鉛は5g/cm3未満の密度を有するマイクロまたはナノ多孔質混合マトリクスである、請求項11に記載の方法。
- 前記再生電解処理溶媒から硫酸塩及び/または鉛以外の金属イオンを除去する工程をさらに含む請求項11に記載の方法。
- 製造上の中間体であって、(a)溶液の5質量%から50質量%までの量のアルカンスルホン酸及び溶液の0.5質量%から20質量%までの量のキレート剤を含有する水溶液と、(b)未溶解の固体グリッド鉛、及び硫酸鉛を含む溶解した鉛活物質と、を含んでいる。
- 前記アルカンスルホン酸はメタンスルホン酸であり、15質量%から35質量%までの量で存在する、請求項18に記載の製造上の中間体。
- 前記キレート剤はEDTA(エチレンジアミン四酢酸)であり、1質量%から10質量%までの量で存在する、請求項18に記載の製造上の中間体。
- 前記鉛活物質は予め脱硫されていない請求項18に記載の製造上の中間体。
- 鉛組成物であって、少なくとも98%の純度を有する固体の鉛、分子状の水素、及び、電解処理溶媒を含み、前記固体の鉛、前記水素、及び、前記電解処理溶媒は、5g/cm3未満の密度を有するマイクロまたはナノ多孔質混合マトリックスを形成し、前記電解処理溶媒のpHは7未満である。
- 前記混合マトリックスは3g/cm3の密度を有する請求項22に記載の鉛組成物。
- 前記混合マトリックスは1g/cm3の密度を有する請求項22に記載の鉛組成物。
- 前記電解処理溶媒は5質量%から50質量%までの量のアルカンスルホン酸及び0.5質量%から20質量%までの量のキレート剤を含む、請求項22に記載の鉛組成物。
- 前記アルカンスルホン酸はメタンスルホン酸であり、前記キレート剤はEDTA(エチレンジアミン四酢酸)である、請求項25に記載の鉛組成物。
- 鉛イオンに富む電解処理溶媒から少なくとも98%の純度の鉛を生成する電解槽であって、
キレート剤を含んでいる鉛イオンに富む電解処理溶媒を含むセルと、
アノードおよびカソードを含み、かつ、前記アノードと前記カソードとの間に膜または他のセパレータを含まず、前記鉛イオンに富む電解処理溶媒と接触できるように前記アノードおよび前記カソードがいずれも部分的に内部に配置される電解セルと、
動作可能に前記電解槽と結合され、かつ、前記カソードの表面に近接して設置され、かつ、前記キレート剤を有意に破壊せずに前記カソードの前記表面から非剥離の方法によって付着性のある少なくとも98%の純度の鉛を集めるように構成された鉛ハーベスタと、を含んでいる。 - 前記アノードは、酸化ルテニウムでコーティングされたチタンアノードであり、前記カソードはアルミニウムカソードである、請求項27に記載の電解槽。
- 前記カソードは前記鉛イオンに富む電解処理溶媒に対して移動するように構成される、請求項27に記載の電解槽。
- 前記カソードは回転するディスク形状のカソードである請求項27に記載の電解槽。
- 前記カソードは、前記ディスク形状のカソード上のマイクロまたはナノ多孔質混合マトリックスに付着性のある少なくとも98%の純度の鉛の形成ができるような速度で回転可能である、請求項30に記載の電解槽。
- 前記カソードに近接して設置され、非剥離の方法で付着性のある少なくとも98%の純度の鉛を除去するように構成されるハーベスタ面をさらに含む請求項27に記載の電解槽。
- 前記セルに流体的に結合され、前記溶媒からの硫酸塩及び/または鉛以外の金属イオンの除去を可能にさせるように構成されている溶媒調整ユニットをさらに含む請求項27に記載の電解槽。
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PCT/US2014/066142 WO2015077227A1 (en) | 2013-11-19 | 2014-11-18 | Devices and methods for smelterless recycling of lead acid batteries |
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BR112017024433B1 (pt) | 2015-05-13 | 2021-10-19 | Aqua Metals Inc. | Sistemas e métodos para recuperação de chumbo a partir de baterias de chumbo-ácido |
AU2016260408B9 (en) | 2015-05-13 | 2021-01-07 | Aqua Metals Inc. | Closed loop systems and methods for recycling lead acid batteries |
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