JP7025324B2 - 無機粒子を得るための反応装置及び無機粒子の製造方法 - Google Patents
無機粒子を得るための反応装置及び無機粒子の製造方法 Download PDFInfo
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Description
粒度分布測定装置(堀場製作所社製、LA-950)で測定した(原理はレーザ回折・散乱法)。
タップデンサー(セイシン社製、KYT-4000)を用いて、JIS R1628に記載の手法のうち、定容積測定法によって測定を行った。
試料を自然落下させて容器に充填し、容器の容積と試料の質量からバルク密度を測定した。
X線回折測定は、X線回折装置(リガク社製、RINT2200)を用い、下記条件にて測定を行った。
X線:CuKα/40kV/40mA
スリット:DS/SS=1°,RS=0.3mm
走査モード:FT測定
Sampling Time:0.4秒
Step Width:0.01°
比表面積測定装置(マウンテック社製、Macsorb)を用い、1点BET法によって測定した。
10 pH調整槽
11 pH調整剤供給手段
12 循環経路
13 原料液供給手段
Claims (11)
- 貯留している母液のpHを調整するpH調整槽と、前記pH調整槽へpH調整剤を供給するpH調整剤供給手段と、前記pH調整槽に貯留している前記母液のpHを測定するpH測定器と、前記pH調整槽に貯留している前記母液全体のOH濃度を均一化する、前記pH調整槽内部の攪拌機と、前記pH調整槽からpHの調整された前記母液の一部を連続的に抜き出して、該抜き出された母液を前記pH調整槽へ返送する循環経路と、前記循環経路内を流通する前記母液へ原料液を供給する原料液供給手段と、を有し、
前記原料液供給手段が前記循環経路内と連通した部位において、前記原料液供給手段内を流通する前記原料液の流れ方向と前記循環経路内を流通する前記母液の流れ方向が、平面視において重なり合う方向且つ側面視において鋭角の方向、または平面視において鋭角の方向且つ側面視において鋭角の方向である反応装置。 - 前記循環経路が、管状体であり、該管状体の部位から前記原料液供給手段によって前記原料液が供給される請求項1に記載の反応装置。
- 前記pH調整槽に、反応生成物を取り出すためのオーバーフローパイプが設けられている請求項1または2に記載の反応装置。
- 二次電池の正極活物質前駆体を製造する請求項1乃至3のいずれか1項に記載の反応装置。
- pH調整槽からpHの調整された、無機粒子を含む母液の一部を連続的に抜き出して該抜き出された母液を前記pH調整槽へ返送する循環経路内を流通する該母液へ、原料液を連続的に供給する工程と、
前記原料液の供給された前記母液が貯留している前記pH調整槽へ、pH調整剤を連続的に供給して、前記pH調整槽に貯留している前記母液全体のOH濃度を均一化する攪拌機によって、該母液のpHを調整する工程と、
を有し、
原料液供給手段が前記循環経路内と連通した部位において、前記原料液供給手段内を流通する前記原料液の流れ方向と前記循環経路内を流通する前記母液の流れ方向が、平面視において重なり合う方向且つ側面視において鋭角の方向、または平面視において鋭角の方向且つ側面視において鋭角の方向である無機粒子の製造方法。 - 前記循環経路が、管状体であり、該管状体の部位から前記原料液を供給する請求項5に記載の無機粒子の製造方法。
- 前記pH調整槽に、前記無機粒子を取り出すためのオーバーフローパイプが設けられている請求項5または6に記載の無機粒子の製造方法。
- 前記循環経路内を流通する母液の流量/前記原料液の供給流量の値が、400以上2400未満である請求項5乃至7のいずれか1項に記載の無機粒子の製造方法。
- 前記原料液が、遷移金属イオンを含む請求項5乃至8のいずれか1項に記載の無機粒子の製造方法。
- 前記pH調整剤が、さらに、錯化剤を含む請求項5乃至9のいずれか1項に記載の無機粒子の製造方法。
- 前記無機粒子が、二次電池の正極活物質の前駆体を製造する請求項5乃至10のいずれか1項に記載の無機粒子の製造方法。
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PCT/JP2017/019553 WO2017212937A1 (ja) | 2016-06-07 | 2017-05-25 | 無機粒子を得るための反応装置及び無機粒子の製造方法 |
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CN114096346B (zh) * | 2019-12-20 | 2024-04-16 | 株式会社Lg化学 | 正极活性材料用前体、其制造方法及其制造设备 |
JP2021123366A (ja) * | 2020-02-03 | 2021-08-30 | 日本スピンドル製造株式会社 | スラリー保管装置、スラリー製造システム及びスラリー保管方法 |
JP7452201B2 (ja) | 2020-04-01 | 2024-03-19 | 住友金属鉱山株式会社 | 硫酸ニッケル溶液の製造装置および製造方法 |
CN113800547A (zh) * | 2021-10-08 | 2021-12-17 | 滨州职业学院 | 一种消化-碳化装置及碳酸钙纳米包覆工艺 |
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WO2013099990A1 (ja) | 2011-12-27 | 2013-07-04 | 日本ゼオン株式会社 | 二次電池用正極及びその製造方法、スラリー組成物、並びに二次電池 |
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JP2014004496A (ja) | 2012-06-21 | 2014-01-16 | Tsukishima Kikai Co Ltd | 反応凝集粒子の製造方法、リチウムイオン電池用正極活物質の製造方法、リチウムイオン電池の製造方法及び反応凝集粒子の製造装置 |
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JP3827545B2 (ja) | 2001-09-13 | 2006-09-27 | 松下電器産業株式会社 | 正極活物質、その製造方法および非水電解質二次電池 |
KR100887186B1 (ko) * | 2007-09-18 | 2009-03-10 | 한국화학연구원 | 리튬 이차 전지용 양극 활물질 전구체 제조 장치 및 방법 |
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JP2010505733A (ja) | 2006-10-13 | 2010-02-25 | トダ・コウギョウ・ヨーロッパ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | 化合物粉体、その製造方法および電気化学用途へのその使用 |
WO2013099990A1 (ja) | 2011-12-27 | 2013-07-04 | 日本ゼオン株式会社 | 二次電池用正極及びその製造方法、スラリー組成物、並びに二次電池 |
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