JP2019523346A - 粒子をコーティングするための装置、及び方法 - Google Patents
粒子をコーティングするための装置、及び方法 Download PDFInfo
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- JP2019523346A JP2019523346A JP2019504692A JP2019504692A JP2019523346A JP 2019523346 A JP2019523346 A JP 2019523346A JP 2019504692 A JP2019504692 A JP 2019504692A JP 2019504692 A JP2019504692 A JP 2019504692A JP 2019523346 A JP2019523346 A JP 2019523346A
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- C23C16/52—Controlling or regulating the coating process
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- 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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Abstract
Description
(a)粒子を第1の反応性ガスと接触させることができる第1の反応器、
(b)粒子を第2の反応性ガスと接触させることができる第2の反応器、及び
(c)第1の反応器と第2の反応器の間に設置された少なくとも1つのバッファデバイス
を含み、
ここで、第1の反応器及び第2の反応器が第1のガスロック及び第2のガスロックによって分離され、前記第1のガスロックによって前記第1の反応器から前記第2の反応器へ又はバッファデバイスへ、粒子を移動させるこができ、同時に、前記第2のガスロックによって前記第2の反応器から前記第1の反応器へ又はバッファデバイスへ、粒子を移動させるこができる。
(a)第1の反応器中の粒子を、粒子の表面と反応する第1のガスに曝すことと、
(b)第2の反応器中の粒子を、前記第1のガスと反応した後の粒子の表面と反応する第2のガスに曝すことと
を含み、
ここで、第1のガスロックによって前記第1の反応器から前記第2の反応器へ又はバッファデバイス(c)へ、及び第2のガスロックによって前記第2の反応器から前記第1の反応器へ又はバッファデバイス(c)へ、粒子を移動させることができ、
少なくとも1つのバッファデバイス(c)が含まれる。
aは、0.0〜0.2、好ましくは0.015〜0.1の範囲にあり、
xは、0.3〜0.8の範囲にあり、
yは、0〜0.35の範囲にあり、
zは、0.1〜0.5の範囲にあり、
dは、0〜0.03の範囲にあり、
x+y+z+d=1。
(式中、rは0〜0.4であり、yは0〜0.4の範囲にあり、
M2は、元素周期表の第3〜12族の金属、例えばTi、V、Cr、Mn、Fe、Co、Ni、Zn、Moの1つ以上、好ましくはMn、Co、Ni及びそれらの組合せ、特にNiとMnの組合せから選択される)
のものである。さらにより好ましくは、LiMn2O4及びLiNi2−tMntO4(式中、変数tは0〜1の範囲にある)である。
xは0.8〜0.9の範囲にあり、
yは0.09〜0.2の範囲にあり、
zは0.01〜0.05の範囲にあり、及び
rは0〜0.4の範囲にある。
Claims (13)
- 原子層堆積によって粒子をコーティングするための装置であって、
(a)粒子を第1の反応性ガスと接触させることができる第1の反応器、
(b)粒子を第2の反応性ガスと接触させることができる第2の反応器、及び
(c)前記第1の反応器と前記第2の反応器の間に設置された少なくとも1つのバッファデバイス
を含み、
ここで、前記第1の反応器及び前記第2の反応器が第1のガスロック及び第2のガスロックによって分離され、前記粒子が前記第1のガスロックによって前記第1の反応器から前記第2の反応器へ、又はバッファデバイス(c)へ移動することができ、同時に、前記粒子が前記第2のガスロックによって前記第2の反応器から前記第1の反応器へ、又はバッファデバイス(c)へ移動することができる、装置。 - 前記第1の反応器及び前記第2の反応器がそれぞれ、インレットバルブを備え、該インレットバルブが、ガスの流量を測定するための計量器、及び前記インレットバルブによって反応性ガスの流量を制御するための手段を備える、請求項1に記載の装置。
- 粒子をコーティングする方法であって、以下の工程、
(a)第1の反応器中の粒子を、粒子の表面と反応する第1のガスに曝すことと、
(b)第2の反応器中の粒子を、前記第1のガスと反応した後の粒子の表面と反応する第2のガスに曝すことと
を含み、
前記粒子が、第1のガスロックによって前記第1の反応器から前記第2の反応器へ、又はバッファデバイス(c)へ移動することができ、第2のガスロックによって前記第2の反応器から前記第1の反応器へ、又はバッファデバイス(c)へ移動することができ、
少なくとも1つのバッファデバイス(c)が含まれる、方法。 - 前記第1の反応器を通過する粒子流の速度が、前記第2の反応器を通過する粒子流の速度より速いか、又は遅い、請求項3に記載の方法。
- 前記第1の反応器及び第2の反応器における圧力が900〜1100ミリバールの範囲にある、請求項3又は4に記載の方法。
- 第1の反応性ガスが金属含有化合物である、請求項3から5のいずれか一項に記載の方法。
- 前記第2の反応性ガスが水である、請求項3から6のいずれか一項に記載の方法。
- 工程(a)及び(b)を含む一連の工程が、少なくとも2回行われる、請求項3から7のいずれか一項に記載の方法。
- 前記粒子が空気輸送によって前記第1の反応器から前記第2の反応器へ移動される、請求項3から8のいずれか一項に記載の方法。
- 前記粒子が、少なくとも10kg/時間の全体粒子流の速度で移動される、請求項3から9のいずれか一項に記載の方法。
- 前記粒子が、ISO 22412 (2008)に従って動的光散乱によって測定された、1〜100μmの質量平均粒径を有する、請求項3から10のいずれか一項に記載の方法。
- 前記第1の反応器及び第2の反応器における温度及び圧力が、互いに独立して設定される、請求項3から11のいずれか一項に記載の方法。
- 前記粒子が、リチウムイオン電池のカソード活物質から選択される、請求項3から12のいずれか一項に記載の方法。
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CN110249454B (zh) | 2017-01-23 | 2023-09-29 | 巴斯夫欧洲公司 | 制造阴极材料的方法和适用于进行所述方法的反应器 |
KR102651214B1 (ko) | 2017-03-08 | 2024-03-25 | 바스프 에스이 | 옥시드 물질의 코팅 방법 |
KR102534238B1 (ko) | 2017-08-24 | 2023-05-19 | 포지 나노, 인크. | 분말의 합성, 기능화, 표면 처리 및/또는 캡슐화를 위한 제조 공정, 및 그의 응용 |
US11942634B2 (en) | 2018-02-09 | 2024-03-26 | Basf Se | Process for making a partially coated electrode active material, and electrode active material |
JP2021513203A (ja) * | 2018-02-09 | 2021-05-20 | ビーエイエスエフ・ソシエタス・エウロパエアBasf Se | 部分的にコーティングした電極活物質の製造方法、及び電極活物質 |
JP7141014B2 (ja) * | 2018-06-29 | 2022-09-22 | 住友金属鉱山株式会社 | 原子層堆積装置とこの装置を用いた被覆膜形成粒子の製造方法 |
CN108933241B (zh) * | 2018-07-09 | 2021-02-02 | 宁波柔创纳米科技有限公司 | 一种双层包覆的正极材料及其制备方法、正极片和锂电池 |
EP3624239A1 (en) * | 2018-09-11 | 2020-03-18 | Basf Se | Process for coating an oxide material |
CN112673496A (zh) * | 2018-09-11 | 2021-04-16 | 巴斯夫欧洲公司 | 涂覆氧化物材料的方法 |
US20240120457A1 (en) * | 2022-10-07 | 2024-04-11 | Baker Hughes Oilfield Operations Llc | Functionally graded and selective deposition of electrode material on current collector in li-ion battery |
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