JP7253057B2 - 二次電池正極材製造用焼成炉および二次電池正極材の焼成方法 - Google Patents
二次電池正極材製造用焼成炉および二次電池正極材の焼成方法 Download PDFInfo
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- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
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- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
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- H—ELECTRICITY
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
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- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
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Description
図5を参照すると、焼成炉は正極材の進行方向に沿って投入および予熱区間A10、昇温区間A20、温度維持区間A30、冷却区間A40、常温冷却および排出区間A50に区分される。ヒーター21はそれぞれの区間で発熱温度が制御されて設定された温度を実現する。
10 チャンバ
11 前半部チャンバ
12 中間チャンバ
13 後半部チャンバ
21 ヒーター
22 耐火匣鉢
30 移送部
51 第1シャッター
52 第2シャッター
53 第3シャッター
54 第4シャッター
60 排気装置
Claims (9)
- 内部空間がヒーターによって加熱されるチャンバ;
前記チャンバの内部に設けられ、二次電池正極材の原料粉末が入れられた耐火匣鉢を一方向に移送する移送部;および
前記チャンバに設けられた給気ノズルおよび排気口を含み、
前記チャンバは、
昇温区間を含む前半部チャンバと、温度維持区間を含む後半部チャンバと、前半部チャンバと後半部チャンバの間に位置して前半部チャンバと後半部チャンバを分離させる中間チャンバを含み、
前記中間チャンバは内部空間の密閉のための入口シャッターと出口シャッターを備え、前記中間チャンバの排気口はガス排気のための排気装置と連結され、
前記中間チャンバは給気ノズルを含み、前記給気ノズルは前記中間チャンバのガスが排気された後に前記中間チャンバの内部にドライエアーまたは酸素を供給する、二次電池正極材製造用焼成炉。 - 前記中間チャンバは、前記温度維持区間と同じ温度を維持する、請求項1に記載の二次電池正極材製造用焼成炉。
- 前記中間チャンバは、前記出口シャッターがおろされて前記入口シャッターが開放された状態で前記前半部チャンバから前記正極材の提供を受け、前記入口シャッターがおろされて内部空間が密閉される、請求項1又は2に記載の二次電池正極材製造用焼成炉。
- 前記排気装置は、真空ポンプと吸引器および送風機のうちいずれか一つで構成され、密閉された前記中間チャンバ内部のガスを排気する、請求項1~3のいずれか一項に記載の二次電池正極材製造用焼成炉。
- 前記中間チャンバは、内部空間がドライエアーまたは酸素で満たされた後、前記出口シャッターの開放により前記正極材を前記後半部チャンバに移送する、請求項1~4のいずれか一項に記載の二次電池正極材製造用焼成炉。
- 前記中間チャンバは、前記前半部チャンバと前記後半部チャンバそれぞれより小さい内部体積を有する、請求項1~5のいずれか一項に記載の二次電池正極材製造用焼成炉。
- 請求項1に記載の焼成炉を用いた二次電池正極材の焼成方法において、
前記正極材が前記耐火匣鉢に入れられて前記前半部チャンバに投入され、前記前半部チャンバで予熱および昇温区間を経る昇温段階;
前記出口シャッターが閉じられて前記入口シャッターが開放された状態で前記前半部チャンバの正極材が前記中間チャンバに移送される移送段階;
前記入口シャッターがおろされて前記中間チャンバが密閉され、前記排気装置が作動して前記中間チャンバ内部のガスを排気させる排気段階;および
前記出口シャッターが開放され、前記中間チャンバの正極材が前記後半部チャンバに移送され、前記後半部チャンバで温度維持区間を経て焼成する焼成段階を含み、
前記排気段階直後に前記中間チャンバの給気ノズルを介して前記中間チャンバの内部にドライエアーまたは酸素が供給される、二次電池正極材の焼成方法。 - 前記排気段階における前記排気装置は真空ポンプと吸引器および送風機のうちいずれか一つで構成される、請求項7に記載の二次電池正極材の焼成方法。
- 前記入口シャッターと前記出口シャッターは同時に開放されないように作動が制御され、前記前半部チャンバのガスが前記後半部チャンバに拡散されることを遮断する、請求項7又は8に記載の二次電池正極材の焼成方法。
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KR1020180165659A KR102177048B1 (ko) | 2018-12-19 | 2018-12-19 | 이차전지 양극재 제조용 소성로 및 이차전지 양극재의 소성 방법 |
KR10-2018-0165659 | 2018-12-19 | ||
PCT/KR2019/018097 WO2020130669A1 (ko) | 2018-12-19 | 2019-12-19 | 이차전지 양극재 제조용 소성로 및 이차전지 양극재의 소성 방법 |
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US20240159466A1 (en) * | 2022-11-11 | 2024-05-16 | Hanwha Corporation | Heat treatment apparatus for manufacturing active material for secondary battery |
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KR101177545B1 (ko) * | 2011-04-19 | 2012-08-27 | 부산대학교 산학협력단 | 리튬 이차전지용 고효율 양극활물질 제조를 위한 소성장치 |
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KR101427537B1 (ko) * | 2013-10-02 | 2014-08-07 | 한화테크엠주식회사 | 2차전지 재료 소성용 열처리로 |
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CN1346960A (zh) | 2000-10-10 | 2002-05-01 | 石川岛播磨重工业株式会社 | 连续烧成炉及其使用方法 |
JP2003240440A (ja) | 2002-02-12 | 2003-08-27 | Dowa Mining Co Ltd | 熱処理炉 |
KR20080090058A (ko) | 2007-04-04 | 2008-10-08 | 동우열처리공업 주식회사 | 하스롤러식 연속침탄 열처리로(爐) |
JP2009103331A (ja) | 2007-10-22 | 2009-05-14 | Ngk Insulators Ltd | ローラハースキルン |
JP2010014290A (ja) | 2008-07-01 | 2010-01-21 | Ihi Corp | 多室型熱処理炉 |
KR20140088352A (ko) | 2013-01-02 | 2014-07-10 | 허혁재 | 연속식 열처리로 및 그 제어방법 |
JP2016153704A (ja) | 2015-02-20 | 2016-08-25 | 日本碍子株式会社 | 連続式焼成炉 |
JP2017017042A (ja) | 2016-10-19 | 2017-01-19 | Jx金属株式会社 | リチウムイオン二次電池、及びリチウムイオン二次電池用正極活物質の製造方法 |
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WO2020130669A1 (ko) | 2020-06-25 |
KR20200076514A (ko) | 2020-06-29 |
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US20220065534A1 (en) | 2022-03-03 |
JP2022514876A (ja) | 2022-02-16 |
CN113242953B (zh) | 2024-02-27 |
EP3901547A1 (en) | 2021-10-27 |
CN113242953A (zh) | 2021-08-10 |
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