JP7340451B2 - フッ化物イオン電気化学セル用複合電極材料 - Google Patents
フッ化物イオン電気化学セル用複合電極材料 Download PDFInfo
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Description
本出願は、米国特許出願第62/434,611号(2016年12月15日出願、発明の名称「フッ化物イオン電気化学セル用複合電極材料」)及び米国特許出願第62/453,295号(2017年2月1日出願、発明の名称「コアシェル」)の優先権を主張するものであり、この参照により当該米国特許出願の内容全体を援用する。
放電:
アノード:MFx+nF-→MFx+n+ne-(フッ化物イオン受容、酸化)
カソード:MFy+ne-→MFy-n+nF-(フッ化物イオン放出、還元)
放電:Ca+CuF2→CaF2+Cu
充電:CaF2+Cu→Ca+CuF2
(i)フッ化物イオン伝導性保護コーティング
Claims (12)
- マグネシウム、カルシウム、鉄、コバルト、ニッケル、銅、鉛、ビスマス、及びこれらのフッ化物、並びにフッ化物イオンを保持又は放出するインターカレーション材料のいずれかによって形成される活物質を含むコアと、
前記コアの全体を被覆し、金属フッ化物又は金属オキシフッ化物よりなるフッ化物含有シェルと、
を備え、
前記フッ化物含有シェルは、
表面が液体電解質との間でフッ化物イオンの交換を許容し、
バルクイオン伝導性が298Kで10 -10 S/cm以上のフッ化物イオン伝導性を有する材料からなり、
前記コアの化学種の反応に要する電位において電気化学的に安定であり、
前記フッ化物含有シェルが前記コアから離れることにより、前記フッ化物含有シェルと前記コアとの間に形成された隙間を有し、
前記隙間は前記活物質の充放電中の体積変化を許容し得る、
電気化学活性構造体。 - 請求項1記載の電気化学活性構造体において、
前記フッ化物含有シェルは前記コアの一部に直接付着している、
電気化学活性構造体。 - 請求項1記載の電気化学活性構造体において、
前記活物質は多重粒子を含み、前記フッ化物含有シェルは前記多重粒子を包囲している、
電気化学活性構造体。 - 請求項1記載の電気化学活性構造体において、
該電気化学活性構造体は、前記フッ化物含有シェルと前記活物質との間に、圧縮性ポリマーカプセル材をさらに備える、
電気化学活性構造体。 - 請求項1~4のいずれか1項に記載の電気化学活性構造体において、
前記活物質は、鉄ナノ粒子、コバルトナノ粒子、ニッケルナノ粒子、銅ナノ粒子、及び鉛ナノ粒子から選択される金属ナノ粒子を含む、
電気化学活性構造体。 - 請求項5記載の電気化学活性構造体において、
前記金属ナノ粒子は、コバルトナノ粒子及び銅ナノ粒子からなる群から選択される、
電気化学活性構造体。 - 請求項1記載の電気化学活性構造体を備える電極であって、
前記活物質は、第1の金属を含み、前記フッ化物含有シェルは、金属フッ化物を含み、前記金属フッ化物の金属は、第2の金属である、
電極。 - 請求項7記載の電極において、
前記第1の金属及び前記第2の金属は、異なる金属である、
電極。 - 請求項7記載の電極において、
前記第1の金属は、Cuを含み、前記フッ化物含有シェルは、LaF3を含む、
電極。 - 請求項7記載の電極を有する電池。
- 請求項9記載の電極を有する電池。
- 請求項1~6のいずれか1項に記載の電気化学活性構造体を備える電極を有する電池。
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Application Number | Priority Date | Filing Date | Title |
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US201662434611P | 2016-12-15 | 2016-12-15 | |
US62/434,611 | 2016-12-15 | ||
US201762453295P | 2017-02-01 | 2017-02-01 | |
US62/453,295 | 2017-02-01 | ||
PCT/US2017/066800 WO2018112400A1 (en) | 2016-12-15 | 2017-12-15 | Composite electrode materials for fluoride-ion electrochemical cells |
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JP2020502752A JP2020502752A (ja) | 2020-01-23 |
JP7340451B2 true JP7340451B2 (ja) | 2023-09-07 |
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US (3) | US11251420B2 (ja) |
EP (1) | EP3555940B1 (ja) |
JP (1) | JP7340451B2 (ja) |
KR (1) | KR102565564B1 (ja) |
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