JP2017529678A - リチウムイオンバッテリ用の複合金属酸化物カソードの製造のための高密度前駆体 - Google Patents
リチウムイオンバッテリ用の複合金属酸化物カソードの製造のための高密度前駆体 Download PDFInfo
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Abstract
Description
本開示の実施形態は、充電式バッテリに関する。より具体的には、本開示の実施形態は、リチウムイオンバッテリ用の複合積層金属酸化物カソードの製造のための高密度前駆体に関する。
充電式バッテリは、様々な家庭用、医療用、航空宇宙産業、防衛及び/又は輸送の用途において、エネルギの蓄積のために広く用いられている。最も一般に用いられるタイプの充電式バッテリはリチウムバッテリであり、これには、リチウムイオンバッテリ又はリチウムポリマーバッテリが含まれ得る。バッテリ駆動デバイスがますます小型化し、かつより強力になるにつれて、これらのデバイスに給電するバッテリはより小さい体積でより多くのエネルギを蓄積する必要がある。したがって、家庭用電子デバイス用途向けの二次(すなわち、充電式)バッテリの重要要件は、高い体積エネルギ密度である。
実施例1
実施例2
実施例3
実施例4
実施例5
実施例6
実施例7
実施例8
実施例9
Claims (27)
- カソード活物質組成物用の前駆体共沈物を製造するための方法であって、
硫酸マンガン及び硫酸コバルトのうち少なくとも1つを含む水溶液を調製することと、
NH4OH溶液を前記水溶液に加え、前記前駆体共沈物の不規則な二次粒子を含む粒子溶液を形成することと、
塩基性溶液を前記粒子溶液に加えることにより、10〜12の範囲の一定のpHを前記粒子溶液において維持することと、
を含む方法。 - 前記粒子溶液を撹拌し、前記不規則な二次粒子から球状の共沈粒子を形成することを更に含む、請求項1に記載の方法。
- 前記粒子溶液から前記球状の共沈粒子を濾取することと、
前記濾取した球状の共沈粒子を洗浄することと、
前記球状の共沈粒子を乾燥することと、
を更に含む、請求項2に記載の方法。 - 前記球状の共沈粒子のメジアン粒径が5マイクロメートルよりも大きい、請求項2に記載の方法。
- 前記粒子溶液が3〜72時間、又は連続的に撹拌される、請求項2に記載の方法。
- 前記粒子溶液が30〜65℃の範囲の一定温度で維持される、請求項1に記載の方法。
- 前記塩基性溶液が、アルカリ金属水酸化物、炭酸アルカリ、及びシュウ酸アルカリのうちの少なくとも1つを含む、請求項1に記載の方法。
- 前記塩基性溶液中の前記アルカリ金属水酸化物の濃度が、0.5モル/L〜10モル/Lの範囲である、請求項7に記載の方法。
- 前記前駆体共沈物がMnxMyCoz(OH)2によって表される組成を有する、請求項1に記載の方法。
- Mが、1つ以上の1価、2価、3価、又は4価カチオン、及びRuから選択される1つ以上の金属カチオンを含む、請求項9に記載の方法。
- 前記水溶液中の前記硫酸マンガン、前記Mの硫酸塩、及び前記硫酸コバルトの濃度が、0.5モル/L〜5モル/Lの範囲である、請求項9に記載の方法。
- MnxMyCoz(OH)2によって表される組成を有する、カソード活物質組成物用の前駆体。
- 前記カソード活物質組成物が、xLi2MO3・(1−x)LiCo2M’(1-y)O2によって表される組成を有する、請求項12に記載の前駆体。
- Mn、Co、M及びM’が、前記カソード活物質組成物中で、平均酸化状態3を有する、請求項13に記載の前駆体。
- 前記カソード活物質組成物が、前記前駆体及びリチウム塩の固相反応を用いて生成される、請求項13に記載の前駆体。
- 0.01≦x<1.00、0≦y<1.00、かつ0.50≦z<1.00である、請求項12に記載の前駆体。
- 前記前駆体が、溶液共沈反応を用いて形成される、請求項12に記載の前駆体。
- カソード活物質組成物用の前駆体共沈物を製造するための装置であって、
一定温度で、かつ不活性ガス雰囲気下で維持される反応器と、
硫酸マンガン及び硫酸コバルトのうち少なくとも1つを含む水溶液を前記反応器に加えるように構成された第1の供給機構と、
前記前駆体共沈物の不規則な二次粒子を含む粒子溶液を形成するため、NH4OH溶液を前記水溶液に加えるように構成された第2の供給機構と、
塩基性溶液を前記粒子溶液に加えることにより、10〜12の範囲の一定のpHを前記粒子溶液において維持するように構成されたpHコントローラと、
を備える装置。 - 前記不規則な二次粒子から球状の共沈粒子を形成するため、前記粒子溶液を撹拌するように構成された、前記反応器中の攪拌器を更に備える、請求項18に記載の装置。
- 前記粒子溶液が3〜72時間、又は連続的に撹拌される、請求項19に記載の装置。
- 前記一定温度が30〜65℃の範囲である、請求項18に記載の装置。
- 前記前駆体共沈物がMnxMyCoz(OH)2によって表される組成を有する、請求項18に記載の装置。
- 前記塩基性溶液が、アルカリ金属水酸化物、炭酸アルカリ、及びシュウ酸アルカリのうちの少なくとも1つを含む、請求項18に記載の装置。
- 前記塩基性溶液中の前記アルカリ金属水酸化物の濃度が、0.5モル/L〜10モル/Lの範囲である、請求項23に記載の装置。
- MnxMyCoz(OH)2によって表される組成を有するカソード活物質組成物用の、球状の前駆体共沈物。
- Mが、1つ以上の1価、2価、3価、又は4価カチオン、及びRuから選択される1つ以上の金属カチオンを含む、請求項25に記載の球状の前駆体共沈物。
- 0.01≦x≦0.30、0≦y≦0.20、かつ0.70≦z<1.00である、請求項25に記載の球状の前駆体共沈物。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/449,987 US9716265B2 (en) | 2014-08-01 | 2014-08-01 | High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries |
| US14/449,987 | 2014-08-01 | ||
| PCT/US2015/038890 WO2016018561A1 (en) | 2014-08-01 | 2015-07-01 | High-density precursor for manufacture of composite metal oxide cathodes for li-ion batteries |
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| JP2017529678A true JP2017529678A (ja) | 2017-10-05 |
| JP7030513B2 JP7030513B2 (ja) | 2022-03-07 |
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| US (3) | US9716265B2 (ja) |
| EP (1) | EP3191410A1 (ja) |
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| TWI620716B (zh) | 2018-04-11 |
| CN106573794A (zh) | 2017-04-19 |
| CN110407259A (zh) | 2019-11-05 |
| US20160036043A1 (en) | 2016-02-04 |
| JP2020064863A (ja) | 2020-04-23 |
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| US10128494B2 (en) | 2018-11-13 |
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| EP3191410A1 (en) | 2017-07-19 |
| US10347909B2 (en) | 2019-07-09 |
| KR102025485B1 (ko) | 2019-09-25 |
| US20190067686A1 (en) | 2019-02-28 |
| TW201620840A (zh) | 2016-06-16 |
| WO2016018561A1 (en) | 2016-02-04 |
| JP7030513B2 (ja) | 2022-03-07 |
| KR20170036062A (ko) | 2017-03-31 |
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