JP7198762B2 - 固体高分子の電解質を含むアルカリ電池のカソード - Google Patents
固体高分子の電解質を含むアルカリ電池のカソード Download PDFInfo
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Description
導電性材料と固体イオン伝導性高分子材料とを含む電極:を含む電池であって、前記高分子材料は、酸素、空気およびオゾンからなる群から選択された気体およびそれらの組み合わせ物中で、高分子化合物とイオン化合物との混合物を加熱するステップにより形成されるか、または前記気体は独立して、酸素、空気またはオゾンである、電池。
本特許出願は2017年1月26日出願の米国特許仮出願第62/450,715号からの優先権を請求し、そして、2017年5月25日出願の米国特許出願第15/605,425号と、2017年8月9日出願の同第15/672,878号と、2016年5月6日出願の同第15/148,085号と、2016年9月30日出願の同第15/282,002号との一部継続出願であるそれらの開示は、引用することによりそれら全体が本明細書中に組み込まれる。
前記合成法はまた、前記の具体的な成分および前記最終材料の所望形態(例えばフィルム、粒状物、等)に応じて変動する場合がある。しかし、前記方法は、最初に、前記成分の少なくとも2種を混合するステップと、任意的第2の混合ステップにおける第3の成分
を添加するステップと、加熱ステップにおいて前記成分/反応体を加熱して、前記固体イオン伝導性高分子材料を合成するステップと、の基本的ステップを含む。本発明の一つの態様において、前記の生成された混合物は場合により、所望サイズのフィルムに形成される場合がある。前記ドーパントが第1のステップにおいて生成された混合物中に含まれなかった場合は、それはその後、熱と、場合によっては圧力(陽圧または減圧)とが適用される間に、前記混合物に添加される場合がある。すべての三成分が含まれ、混合され、そして加熱されて、前記固体イオン伝導性高分子材料の合成を単一ステップで終結する場合がある。しかし、この加熱ステップは、あらゆる混合ステップとは別のステップにおいて実施されるか、または混合ステップが実施されている間に終結される場合がある。前記加熱ステップは前記混合物の形態(例えばフィルム、粒状物、等)に関わらず実施される場合がある。前記合成法の一つの態様において、すべての三成分が混合され、次にフィルムに押出される。前記フィルムは加熱されて前記合成を終結する。
の物理学的特性を達成するために有用な別の成分、を含む。
対して、前記イオン伝導率は約1×10-4S/cmまたはそれ以上に増加される場合がある。
Claims (17)
- 導電性材料と固体イオン伝導性高分子材料とを含む電極を含んでなる電池であって、
前記固体イオン伝導性高分子材料は、室温において1×10-6S/cmを超えるイオン伝導率を有し、
前記固体イオン伝導性高分子材料は、基材高分子とイオン化合物の混合物の気体の存在下で加熱された合成反応の反応生成物であり、
前記気体は、酸素、空気およびオゾンからなる群から選択されるドーパントであり、電子受容体または酸化剤として機能し、
前記基材高分子は、ポリフェニレンスルフィドであり、
前記イオン化合物は、無機酸化物、無機塩化物および無機水酸化物からなる群から選択される、
電池。 - 前記導電性材料は、前記電極の3ないし30重量パーセントを含む、請求項1の電池。
- 前記固体イオン伝導性高分子材料は、前記電極の1ないし30重量パーセントを含む、請求項1の電池。
- 前記電極はさらに、前記電極の20ないし80重量パーセントを含む電気化学的活性材料を含む、請求項1の電池。
- 前記電極はさらに、酸素還元(oxygen reduction)触媒を含む、請求項1の電池。
- 前記電極はさらに、二酸化マンガンを含み、そして前記二酸化マンガンは、β-MnO2(軟マンガン鉱(pyrolusite))、ラムスデライト(ramsdellit
e)、γ-MnO2、ε-MnO2、λ-MnO2、EMD、CMD、およびそれらの組み
合わせ物からなる群から選択される、請求項1の電池。 - 前記電池は、AA(LR6)のサイズを有する、請求項1の電池。
- 前記電池は、0.8Vの電圧終止(cutoff)を伴う150ないし300mAの間の電流における連続定電流放電において試験される場合に3Ahを超える容量を有する、請求項7の電池。
- 前記電池の正極(positive electrode)は400mAhr/g超を提供する、請求項7の電池。
- 前記電極はさらに、電気化学的活材料を含み、そして前記固体イオン伝導性高分子材料は前記電気化学的活材料の少なくとも1粒子を内包している(encapsulate)、請求項1の電池。
- 前記導電性材料は炭素を含む、請求項1の電池。
- 前記イオン化合物は水酸化リチウムである、請求項1の電池。
- 前記固体イオン伝導性高分子材料は、室温において1×10-5S/cmを超えるイオン伝導率を有する、請求項1の電池。
- 前記固体イオン伝導性高分子材料は、室温において1×10-4S/cmを超えるイオン伝導率を有する、請求項1の電池。
- 基材高分子をイオン化合物と混合して、第1の混合物を形成するステップと、
前記第1の混合物を気体中で加熱して、前記第1の混合物を固体イオン伝導性高分子材料に形成するステップと、
前記固体イオン伝導性高分子材料を導電性材料と混合して、水酸化物イオンをイオン伝導し得る電極を製造するステップと:
を含み、
前記固体イオン伝導性高分子材料は、室温において1×10-6S/cmを超えるイオン伝導率を有し、
前記気体は、酸素、空気およびオゾンからなる群から選択されるドーパントであり、電 子受容体または酸化剤として機能し、
前記基材高分子は、ポリフェニレンスルフィドであり、
前記イオン化合物は、無機酸化物、無機塩化物および無機水酸化物からなる群から選択される、
電池のための電極を製造する方法。 - 前記加熱するステップにおいて、前記酸素含有気体は陽圧(positive pressure)で供給される、請求項15の方法。
- 前記電極を製造するステップにおいて、前記電極はさらに、固体粒状物の電気化学的活材料を含み、そして前記固体イオン伝導性高分子材料と前記導電性材料とは両方とも、前記電気化学的活材料上にコートされる、請求項15の方法。
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PCT/US2018/015146 WO2018140552A1 (en) | 2017-01-26 | 2018-01-25 | Alkaline battery cathode with solid polymer electrolyte |
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US11152657B2 (en) | 2012-04-11 | 2021-10-19 | Ionic Materials, Inc. | Alkaline metal-air battery cathode |
US10559827B2 (en) | 2013-12-03 | 2020-02-11 | Ionic Materials, Inc. | Electrochemical cell having solid ionically conducting polymer material |
US11251455B2 (en) | 2012-04-11 | 2022-02-15 | Ionic Materials, Inc. | Solid ionically conducting polymer material |
CN111341979A (zh) | 2013-12-03 | 2020-06-26 | 离子材料公司 | 固体离子传导性聚合物材料及其应用 |
WO2015153729A1 (en) | 2014-04-01 | 2015-10-08 | Ionic Materials, Inc. | High capacity polymer cathode and high energy density rechargeable cell comprising the cathode |
KR102640010B1 (ko) | 2015-06-04 | 2024-02-22 | 아이오닉 머터리얼스, 인코퍼레이션 | 고체 중합체 전해질을 갖는 리튬 금속 배터리 |
US11342559B2 (en) | 2015-06-08 | 2022-05-24 | Ionic Materials, Inc. | Battery with polyvalent metal anode |
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US20180212232A1 (en) | 2018-07-26 |
WO2018140552A8 (en) | 2018-10-04 |
US20210226198A9 (en) | 2021-07-22 |
KR20190111056A (ko) | 2019-10-01 |
JP2020507182A (ja) | 2020-03-05 |
WO2018140552A1 (en) | 2018-08-02 |
CN110337746A (zh) | 2019-10-15 |
EP3574542A1 (en) | 2019-12-04 |
EP3574542A4 (en) | 2020-09-02 |
US20200203715A9 (en) | 2020-06-25 |
US11114655B2 (en) | 2021-09-07 |
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