JP2015093828A - Al置換ガーネットの合成方法 - Google Patents
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Abstract
【解決手段】本発明によるAl置換ガーネットの合成方法は、室温で立方相として存在するLLZにAlを添加し、Alがリチウムサイトに置換されて立方構造を安定化させ、液相焼結効果により密度が上昇してLLZの物性を向上させる方法を特徴とする。
【選択図】図9
Description
Li2CO3、La2O3、ZrO2及びAl2O3を1次乾式混合する段階と、
800〜1000℃で5〜7時間1次焼成する段階と、
自然冷却した後2次乾式混合する段階と、
120〜150MPaで8〜12mmのペレットを製作する段階と、
1000〜1250℃で20〜36時間2次焼成する段階と、
を含む、立方相(cubic phase)のLLZ(Li7La3Zr2O12)を製造する方法を提供する。
Li2CO3、La2O3、ZrO2及びAl2O3を1次乾式混合する段階と、
800〜1000℃で5〜7時間1次焼成する段階と、
自然冷却した後2次乾式混合する段階と、
120〜150MPaで8〜12mmのペレットを製作する段階と、
1000〜1250℃で20〜36時間2次焼成する段階と、
を含む、立方相(cubic phase)のLLZ(Li7La3Zr2O12)を製造する方法を提供する。
Claims (9)
- Li2CO3、La2O3、ZrO2及びAl2O3を1次乾式混合する段階と、
800〜1000℃で5〜7時間1次焼成する段階と、
自然冷却した後2次乾式混合する段階と、
120〜150MPaで8〜12mmのペレットを製作する段階と、
1000〜1250℃で20〜36時間2次焼成する段階と、
を含む、立方相(cubic phase)のLLZ(Li7La3Zr2O12)を製造することを特徴とする方法。 - 前記立方相のLLZは、LiがAlで置換されることを特徴とする請求項1に記載の方法。
- 前記置換されたAlは、0.52mol〜0.80molのものであって、LLZ内にAl2O3が2.5wt%〜3.76wt%ドープされたことを特徴とする請求項2に記載の方法。
- 前記Li2CO3:La2O3:ZrO2:Al2O3の乾式混合比率は7mol:3mol:4mol:0.7〜0.9molであることを特徴とする請求項1に記載の方法。
- 2次焼成段階前の乾式混合物10〜80%でペレットを製作し、残りの乾式混合物の粉末でペレットを覆う過程をさらに含むことを特徴とする請求項1に記載の方法。
- 製造されたLLZを分析する段階をさらに含み、分析する段階はXRD(X−Ray Diffraction)、ラマン分光法(Raman Spectroscopy)またはICP−MS(Inductively Coupled Plasma Mass Spectrometry)で行われることを特徴とする請求項1に記載の方法。
- XRDを用いてLLZの相(phase)及び不純物を確認する段階であることを特徴とする請求項6に記載の方法。
- ラマン分光法を用いてXRDで判断できない数百マイクロ以下の領域の相(phase)及び不純物を確認することを特徴とする請求項6に記載の方法。
- ICPを用いてLLZ内の各元素組成比率と、目標とする組成比率と、を比較することを特徴とする請求項6に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2013-0136935 | 2013-11-12 | ||
KR1020130136935A KR101526703B1 (ko) | 2013-11-12 | 2013-11-12 | Al 치환된 가넷의 합성 방법 |
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JP2015093828A true JP2015093828A (ja) | 2015-05-18 |
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JP2014114797A Pending JP2015093828A (ja) | 2013-11-12 | 2014-06-03 | Al置換ガーネットの合成方法 |
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US (1) | US20150130115A1 (ja) |
JP (1) | JP2015093828A (ja) |
KR (1) | KR101526703B1 (ja) |
CN (1) | CN104628381A (ja) |
DE (1) | DE102014211157A1 (ja) |
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KR20200102910A (ko) * | 2019-02-22 | 2020-09-01 | 포항공과대학교 산학협력단 | 고체 전해질용 조성물과 이의 제조방법 |
CN109980272B (zh) * | 2019-04-16 | 2021-04-20 | 山东大学 | 一种Al掺杂片状LLZO复合固态电解质及其制备方法和应用 |
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JP5358522B2 (ja) * | 2010-07-07 | 2013-12-04 | 国立大学法人静岡大学 | 固体電解質材料およびリチウム電池 |
CN105636921A (zh) * | 2013-10-07 | 2016-06-01 | 昆腾斯科普公司 | 用于锂二次电池的石榴石材料和制造和使用石榴石材料的方法 |
KR101592752B1 (ko) * | 2014-08-18 | 2016-02-12 | 현대자동차주식회사 | 가넷 분말, 이의 제조방법, 핫프레스를 이용한 고체전해질 시트 및 이의 제조방법 |
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- 2014-06-03 US US14/295,130 patent/US20150130115A1/en not_active Abandoned
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JP2011051800A (ja) * | 2008-08-21 | 2011-03-17 | Ngk Insulators Ltd | セラミックス材料及びその製造方法 |
JP2011073963A (ja) * | 2009-09-03 | 2011-04-14 | Ngk Insulators Ltd | セラミックス材料及びその利用 |
WO2013010692A1 (de) * | 2011-07-19 | 2013-01-24 | Robert Bosch Gmbh | Lithiumionen leitende, granatartige verbindungen |
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DE102014211157A1 (de) | 2015-05-13 |
US20150130115A1 (en) | 2015-05-14 |
KR20150054462A (ko) | 2015-05-20 |
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