JP2016503573A - セパレータと電解質との組み合わせを備えるアルカリ電気化学電池 - Google Patents
セパレータと電解質との組み合わせを備えるアルカリ電気化学電池 Download PDFInfo
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Abstract
Description
%カソード多孔率=(1−(カソードの実体積÷カソードの体積))×100
Zn+2MnO2+H2O→ZnO+2MnOOH (I)
Zn+2MnO2+2H2O→Zn(OH)2+2MnOOH (II)
Zn+2MnO2+H2O→ZnO+2MnOOH (I)
Zn+2MnO2+2H2O→Zn(OH)2+2MnOOH (II)
抵抗電池の測定
抵抗の測定が、抵抗電池(resistivity cell)において室温(例えば、約21℃)で実行される。抵抗電池は、Teflon(登録商標)に入れられた2つのステンレス鋼電極で構成される。下方の電極が、電解質の小さなリザーバを電池内に維持できるように構成される。上部電極アセンブリは、着脱可能であり、2つの金属ピンによって下部アセンブリへと整列させられる。上部電極アセンブリは、分析対象の材料サンプルの上部に力(約1.8〜2.3kg)(約4〜5ポンド)を加えることができるように、ばねによって付勢されている。下部電極アセンブリが、フィクスチャ(fixture)の底部へとねじ留めされ、電気リードが各々の電極へと取り付けられる。次いで、リードが、電池またはサンプル材料の抵抗を割り出すためのインピーダンス掃引を完了させるために使用されるSolartron Impedance Analyzerなどのインピーダンス分析器のリードへと取り付けられる。
典型的な電池が、電池の放電性能への本発明の効果を評価するために組み立てられる。アノードは、4.8グラムの亜鉛、水に約31重量%のKOHおよび2重量%のZnOを溶解させた1.843グラムの水酸化カリウムアルカリ電解質、0.027グラムのポリアクリル酸ゲル化剤、および0.02グラムの不織防止剤を含有するアノードスラリを含む。カソードは、EMD、黒鉛、および水酸化カリウム水性電解質溶液の混合物を含む。カソードは、10.918グラムのEMDのローディング、0.4グラムのTimcal BNB−90黒鉛のローディング、および0.613グラムの電解質を含む。セパレータは、アノードとカソードとの間に介装される。アノード、カソード、およびセパレータは、円筒形の形状のハウジングに挿入される。次いで、ハウジングが封止され、電池組み立てプロセスが完了する。得られた電池は、AAサイズの電池と典型的に称される。
191.96mOhm・cm2の初期ASR、305.94mOhm・cm2の最終ASR、および1.594というASR比を有するセパレータ1と電解質Aとの組み合わせを備えるAAサイズの電池を組み立てる。電池は、例えば約21℃の室温にて保管され、その後に電池についてリモコン試験が実行される。電池は、例えば約21℃の室温にて保管され、その後に電池について時計/ラジオ試験が実行される。電池は、2週間の期間にわたって繰り返される24時間で25℃〜55℃の温度を循環する温度で保管され、その後に電池について玩具試験が実行される。
Claims (15)
- 電気化学的に活性なアノード物質を含むアノードと、電気化学的に活性なカソード物質を含むカソードと、前記アノードと前記カソードとの間のセパレータと、水に溶解したイオン伝導性の成分を含んでいる電解質とを備えており、前記セパレータが前記電解質との組み合わせにおいて100mOhm−cm2〜220mOhm−cm2の間の初期面積抵抗を有しているアルカリ電気化学電池。
- 初期面積抵抗は、150mOhm−cm2〜200mOhm−cm2の間である、請求項1に記載のアルカリ電気化学電池。
- 500mOhm−cm2未満の最終面積抵抗を有する、請求項1または2に記載のアルカリ電気化学電池。
- 200mOhm−cm2〜500mOhm−cm2の間の最終面積抵抗を有する、請求項1〜3のいずれか一項に記載のアルカリ電気化学電池。
- 1.9未満のASR比を有する、請求項1〜4のいずれか一項に記載のアルカリ電気化学電池。
- 1.2〜1.65のASR比を有する、請求項1〜5のいずれか一項に記載のアルカリ電気化学電池。
- 前記アノード物質は、亜鉛、亜鉛合金、カドミウム、鉄、および金属水素化物からなる群から選択される、請求項1〜6のいずれか一項に記載のアルカリ電気化学電池。
- 前記カソード物質は、酸化マンガン、二酸化マンガン、電解二酸化マンガン(EMD)、化成二酸化マンガン(CMD)、ハイパワー電解二酸化マンガン(HPEMD)、ラムダ型二酸化マンガン、酸化銀、酸化ニッケル、オキシ水酸化ニッケル、酸化銅、酸化ビスマス、多価ニッケル、およびこれらの混合物からなる群から選択される、請求項1〜7のいずれか一項に記載のアルカリ電気化学電池。
- 前記イオン伝導性の成分は、水酸化ナトリウム、水酸化カリウム、水酸化リチウム、水酸化セシウム、塩化亜鉛、塩化アンモニウム、過塩素酸マグネシウム、臭化マグネシウム、およびこれらの混合物からなる群から選択される、請求項1〜8のいずれか一項に記載のアルカリ電気化学電池。
- 前記セパレータは、2000cm3/cm2・min @ 1kPa〜5000cm3/cm2・min @ 1kPaの透気度を有する、請求項1〜9のいずれか一項に記載のアルカリ電気化学電池。
- 前記セパレータは、15g/m2〜40g/m2の間の坪量を有する、請求項1〜10のいずれか一項に記載のアルカリ電気化学電池。
- 前記セパレータは、70マイクロメートル〜90マイクロメートルの乾燥厚さを有する、請求項1〜11のいずれか一項に記載のアルカリ電気化学電池。
- 前記カソードは、10.5グラム以上のローディングまたは10.7グラム〜11.5グラムの間のローディングを有する、請求項1〜12のいずれか一項に記載のアルカリ電気化学電池。
- 前記電解質は、25%〜35%または25%〜32%の初期水酸化物濃度を有する、請求項1〜13のいずれか一項に記載のアルカリ電気化学電池。
- 前記電解質は、40%〜55%の最終水酸化物濃度を有する、請求項1〜14のいずれか一項に記載のアルカリ電気化学電池。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/705,400 US8920969B2 (en) | 2012-12-05 | 2012-12-05 | Alkaline electrochemical cells with separator and electrolyte combination |
| US13/705,400 | 2012-12-05 | ||
| PCT/US2013/073235 WO2014089261A1 (en) | 2012-12-05 | 2013-12-05 | Alkaline electrochemical cells with separator and electrolyte combination |
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| JP2016503573A true JP2016503573A (ja) | 2016-02-04 |
| JP6279602B2 JP6279602B2 (ja) | 2018-02-14 |
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| US (1) | US8920969B2 (ja) |
| EP (3) | EP3683861B1 (ja) |
| JP (1) | JP6279602B2 (ja) |
| CN (1) | CN104813507B (ja) |
| BR (1) | BR112015012889A2 (ja) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020087828A (ja) * | 2018-11-29 | 2020-06-04 | 日立化成株式会社 | アルカリ蓄電池及びアルカリ蓄電池用電解液 |
| WO2023167330A1 (ja) * | 2022-03-03 | 2023-09-07 | 国立大学法人千葉大学 | 亜鉛負極二次電池 |
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Also Published As
| Publication number | Publication date |
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| EP3683861A1 (en) | 2020-07-22 |
| WO2014089261A1 (en) | 2014-06-12 |
| EP4213252A3 (en) | 2023-07-26 |
| EP4213252B1 (en) | 2025-04-23 |
| EP2929581A1 (en) | 2015-10-14 |
| US8920969B2 (en) | 2014-12-30 |
| JP6279602B2 (ja) | 2018-02-14 |
| EP4213252A2 (en) | 2023-07-19 |
| US20140154542A1 (en) | 2014-06-05 |
| BR112015012889A2 (pt) | 2017-07-11 |
| CN104813507A (zh) | 2015-07-29 |
| EP2929581B1 (en) | 2020-08-19 |
| CN104813507B (zh) | 2018-05-15 |
| EP3683861B1 (en) | 2023-04-05 |
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