JP2010500723A - リチウムイオン電池用高性能アノード材料 - Google Patents
リチウムイオン電池用高性能アノード材料 Download PDFInfo
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- H01M10/05—Accumulators with non-aqueous electrolyte
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
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- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
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- H—ELECTRICITY
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- H01M4/02—Electrodes composed of, or comprising, active material
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- H01M4/624—Electric conductive fillers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
本出願は、2006年8月9日出願の米国特許出願11/463.394号明細書の優先権を主張し、参照により本明細書中に取り込む。
本発明は、リチウムイオン電池、特にリチウムイオン電池用高性能アノード材料に関する。
UVポリマーのための典型的な合成手順は、1gのPCl000、0.5gのPC2003、0.2gデカヒドロナフタレン(ポロゲン)、2gのニトロメタン(溶媒)、および0.02g光開始剤を、長い石英ビーカーに充填し、そして遮光して30分間激しく機械的に攪拌することを含む。この混合物を、次にVCX750Vibra−cell ultrasonicatorを使用して、20分間、超音波にかけた。攪拌を続けて、混合物を、UVボックス中で、UVランプから10cmの距離に置き、UV照射を1〜10分間続けた。固体含有物を、次にろ過し、そして脱イオン水を使用して洗浄した。最終的に、UVポリマーを真空化の80℃のオーブンで24時間乾燥した。UVポリマーの内側および外側に孔を示す生成した構造を、図3に示す。
Sn/ポリマーマトリックス材料の最適化されていない設定に対するSnのナノ粒子の比較を図4に示す。この図に示されるように、Sn/ポリマーマトリックス材料の最適化されていない設定は、良好なサイクル安定性を示す。テストしたSn/PANI複合組成物は、1:1(wt)であり、そして電極の組成は、:Sn/PANI:炭素(電子伝導性添加物):SBR/CMC(6:4)(バインダー)=8:1:1(wt)であった。Sn/ポリマーマトリックス材料の最適化は、:1)良好なサイクル寿命を保ちながら、容量を改善させるために、ポリマー:Snの比を改善すること;および2)均一の細孔径等を得ることを目的として合成条件を最適化すること、を含むことができるであろう。
Claims (28)
- 空隙容積を画定するマトリックスであって、空隙容積が複数の気孔経路および膨張調節孔からなる、マトリックスと、
リチウム合金化粒子であって、該粒子が該膨張調節孔中に含まれる、粒子と、
から成るリチウム電池中のアノード用複合粒子。 - 該リチウム合金化粒子が、未リチオ化粒子である、請求項1の粒子。
- 該リチウム合金化粒子が、リチオ化された粒子である、請求項1の粒子。
- 該マトリックスが、伝導度向上剤を含む、請求項1の粒子。
- 該伝導度向上剤が、電気活性材料である、請求項4の粒子。
- 該伝導度向上剤が、イオン伝導性材料である、請求項4の本発明。
- 該マトリックスが、結合要素を含む、請求項1の粒子。
- 該マトリックスが、接着促進剤を含む、請求項1の粒子。
- 該マトリックスが、有機ポリマーである、請求項1の粒子。
- 該ポリマーが、ロッドコイル型ポリマー、高分岐ポリマー、UV架橋ポリマー、熱架橋ポリマー、およびそれらの組み合わせからなる群から選択される、請求項9の粒子。
- 該マトリックスが、無機セラミックである、請求項1の粒子。
- 該セラミックが、IV〜VI族の遷移金属化合物であり、該化合物が、窒化物、炭化物、酸化物、およびそれらの組み合わせからなる群から選択される、請求項11の粒子。
- 該マトリックスが、ハイブリッドマトリックスであり、該ハイブリッドマトリックスが、有機ポリマーと無機セラミックの混合物である、請求項1の粒子。
- 該リチウム合金化粒子が、スズ、ケイ素、ゲルマニウム、鉛、アンチモン、アルミニウム、スズ合金およびケイ素合金からなる群から選択される組成物を有する、請求項1の粒子。
- 該リチウム合金化粒子が、1〜999nmの平均線寸法を有するナノ粒子である、請求項1の粒子。
- 該リチウム合金化粒子が、5〜500nmの平均線寸法を有するナノ粒子である、請求項1の粒子。
- 該リチウム合金化粒子が、5〜50nmの平均線寸法を有するナノ粒子である、請求項1の粒子。
- 該リチウム合金化粒子が、5〜20nmの平均線寸法を有するナノ粒子である、請求項1の粒子。
- 該膨張調節孔が、2nm〜5μmの平均線寸法を有する、請求項15の粒子。
- 該膨張調節孔が、10nm〜2.5μmの平均線寸法を有する、請求項16の粒子。
- 該膨張調節孔が、10〜250nmの平均線寸法を有する、請求項17の粒子。
- 該膨張調節孔が、10〜100nmの平均線寸法を有する、請求項18の粒子。
- 電極マトリックス中で、共に結合された複数の該複合粒子をさらに含む、請求項1の粒子。
- 該複数の複合粒子が、カプセル化、絡み合い、化学的結合およびそれらの組み合わせからなる群から選択される方法を使用して、該電極マトリックス中で共に結合されている、請求項23の粒子。
- 該リチウム合金化粒子が、カプセル化、絡み合い、化学的結合およびそれらの組み合わせからなる群から選択される方法を使用して、該膨張調節孔中に結合されている、請求項1の粒子。
- 該膨張調節孔の平均線寸法が、該未リチオ化リチウム合金化粒子の平均線寸法の2〜5倍である、請求項2の粒子。
- 該膨張調節孔の平均線寸法が、該未リチオ化リチウム合金化粒子の平均線寸法の2〜4倍である、請求項2の粒子。
- 該膨張調節孔の平均線寸法が、該未リチオ化リチウム合金化粒子の平均線寸法の2〜3倍である、請求項2の粒子。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US11/463,394 US7722991B2 (en) | 2006-08-09 | 2006-08-09 | High performance anode material for lithium-ion battery |
US11/463,394 | 2006-08-09 | ||
PCT/US2007/075591 WO2008021961A2 (en) | 2006-08-09 | 2007-08-09 | High performance anode material for lithium-ion battery |
Publications (3)
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JP2010500723A true JP2010500723A (ja) | 2010-01-07 |
JP2010500723A5 JP2010500723A5 (ja) | 2010-05-20 |
JP5394924B2 JP5394924B2 (ja) | 2014-01-22 |
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JP2009523999A Active JP5394924B2 (ja) | 2006-08-09 | 2007-08-09 | リチウムイオン電池用高性能アノード材料 |
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US (1) | US7722991B2 (ja) |
JP (1) | JP5394924B2 (ja) |
KR (2) | KR101152831B1 (ja) |
CN (1) | CN101601162B (ja) |
WO (1) | WO2008021961A2 (ja) |
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JP2001185152A (ja) * | 1999-12-27 | 2001-07-06 | Sony Corp | 電極添加材および二次電池 |
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US7722991B2 (en) | 2010-05-25 |
KR101152831B1 (ko) | 2012-06-12 |
KR20110112358A (ko) | 2011-10-12 |
WO2008021961A2 (en) | 2008-02-21 |
KR20090058517A (ko) | 2009-06-09 |
CN101601162B (zh) | 2012-01-04 |
WO2008021961A8 (en) | 2008-10-16 |
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