JP5162825B2 - 非水電解質二次電池用負極とそれを用いた非水電解質二次電池 - Google Patents
非水電解質二次電池用負極とそれを用いた非水電解質二次電池 Download PDFInfo
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- JP5162825B2 JP5162825B2 JP2005358754A JP2005358754A JP5162825B2 JP 5162825 B2 JP5162825 B2 JP 5162825B2 JP 2005358754 A JP2005358754 A JP 2005358754A JP 2005358754 A JP2005358754 A JP 2005358754A JP 5162825 B2 JP5162825 B2 JP 5162825B2
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- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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Description
図1(a)は、本発明の実施の形態1における非水電解質二次電池用負極を評価するためのモデルセルの構造を示す透視平面図、図1(b)は、同A−A線における断面図、図2は集電体近傍における合剤層の構造を示す模式図である。
1A 集電体
1B 合剤層
1C リード
2 対極
2A 集電体
2C リード
3 セパレータ
4 ラミネート袋
5 非水電解質
7 変性ポリプロピレンフィルム
11 含ケイ素粒子
12 カーボンナノファイバ
13 触媒元素
14 複合負極活物質
15 第1結着剤
16 第2結着剤
20 結着層
Claims (5)
- 集電体と、
少なくともリチウムイオンの吸蔵放出が可能な含ケイ素粒子と、
前記含ケイ素粒子の表面に付着されたカーボンナノファイバと、
前記カーボンナノファイバの成長を促進し、Cu、Fe、Co、Ni、MoおよびMnよりなる群から選択された少なくとも1種の触媒元素とからなる複合負極活物質と、
含アクリル基高分子からなる第1結着剤と、
粘着性ゴム粒子からなる第2結着剤とを含み、前記集電体と導通させた合剤層とを備え、前記第1結着剤を前記含ケイ素粒子と前記集電体に結着させ、前記第2結着剤を前記カーボンナノファイバ同士に結着させ、
前記第1結着剤の含有量を前記含ケイ素粒子100重量部に対し1重量部以上、30重量部以下、前記第2結着剤の含有量を前記カーボンナノファイバ100重量部に対し3重量部以上、80重量部以下とした非水電解質二次電池用負極。 - 前記集電体は表面が粗面化されている請求項1記載の非水電解質二次電池用負極。
- 前記合剤層中において、前記第1結着剤の含有量を前記集電体の近傍において他の部位よりも高くした請求項1記載の非水電解質二次電池用負極。
- 前記集電体と前記合剤層との間に、前記合剤層よりも前記第1結着剤の含有量の多い結着層をさらに設けた請求項1記載の非水電解質二次電池用負極。
- 請求項1〜4のいずれか1項に記載の非水電解質二次電池用負極を備えた非水電解質二次電池。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005358754A JP5162825B2 (ja) | 2005-12-13 | 2005-12-13 | 非水電解質二次電池用負極とそれを用いた非水電解質二次電池 |
CNB2006800011211A CN100495769C (zh) | 2005-12-13 | 2006-10-19 | 非水电解质二次电池用负极和使用该负极的非水电解质二次电池 |
US11/664,805 US7892677B2 (en) | 2005-12-13 | 2006-10-19 | Negative electrode for non-aqueous electrolyte secondary batteries, and non-aqueous electrolyte secondary battery having the same |
PCT/JP2006/320824 WO2007069389A1 (ja) | 2005-12-13 | 2006-10-19 | 非水電解質二次電池用負極とそれを用いた非水電解質二次電池 |
KR1020077006236A KR100832205B1 (ko) | 2005-12-13 | 2006-10-19 | 비수 전해질 이차 전지용 부극과 그를 이용한 비수 전해질이차 전지 |
Applications Claiming Priority (1)
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JP2005358754A JP5162825B2 (ja) | 2005-12-13 | 2005-12-13 | 非水電解質二次電池用負極とそれを用いた非水電解質二次電池 |
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Publication Number | Publication Date |
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JP2007165078A JP2007165078A (ja) | 2007-06-28 |
JP5162825B2 true JP5162825B2 (ja) | 2013-03-13 |
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JP2005358754A Expired - Fee Related JP5162825B2 (ja) | 2005-12-13 | 2005-12-13 | 非水電解質二次電池用負極とそれを用いた非水電解質二次電池 |
Country Status (5)
Country | Link |
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US (1) | US7892677B2 (ja) |
JP (1) | JP5162825B2 (ja) |
KR (1) | KR100832205B1 (ja) |
CN (1) | CN100495769C (ja) |
WO (1) | WO2007069389A1 (ja) |
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US20090004566A1 (en) | 2009-01-01 |
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CN101061593A (zh) | 2007-10-24 |
US7892677B2 (en) | 2011-02-22 |
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