JP2010161078A - 非水電解質二次電池 - Google Patents
非水電解質二次電池 Download PDFInfo
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- H—ELECTRICITY
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- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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Abstract
【解決手段】非水電解質二次電池の負極活物質として、式(1):LixM1 yM2 z(1)(ここで、M1は、Ti、Zr、Mn、Co、Ni、CuおよびFeよりなる群から選択された少なくとも1種の元素であり、M2は、SiおよびSnよりなる群から選択された少なくとも1種の元素であり、0≦x<10、0.1≦y≦10およびz=1である。)で示される固溶体を用いる。
【選択図】図2
Description
LixM1 yM2 z (1)
(ここで、M1は、Ti、Zr、Mn、Co、Ni、CuおよびFeよりなる群から選択された少なくとも1種の元素であり、M2は、SiおよびSnよりなる群から選択された少なくとも1種の元素であり、0≦x<10、0.1≦y≦10およびz=1である。)で示される固溶体を活物質として有する非水電解質二次電池に関する。
また、前記負極は、式(1)で示される固溶体100重量部に対して、炭素材料を5〜50重量部含んでいることが好ましい。
ここで、0≦x<10であり、デンドライトを効果的に抑制する観点からは、0≦x<5であることが好ましい。
また、z=1である。なお、xの値は、電池の充放電反応によるLiの吸蔵・放出により変化する。電池の製造直後には、xは、一般に0である。
負極活物質(固溶体)の粉末8.5g、導電剤として黒鉛粉末1gおよび結着剤としてポリエチレン粉末0.5gを混合して合剤とした。この合剤0.1gを直径17.5mmの円板状に加圧成型して試験電極1とした。次いで、試験電極1を図1に示すようにケース2の中に置いた。そして、その上に微孔性ポリプロピレンのセパレータ3を置いた。次いで、ケース2の中に非水電解液を注いだ。ここでは、1モル/リットルとなるように過塩素酸リチウム(LiClO4)をエチレンカーボネートおよびジメトキシエタンの等体積比の混合物に溶解してなる電解液を用いた。そして、内側に直径17.5mmの円板状の金属リチウム4が張り付けられ、外周部にポリプロピレンのガスケット5を付した封口板6でケース2を封口し、試験セルとした。
負極活物質(固溶体)、導電剤として黒鉛粉末および結着剤としてポリ4フッ化エチレンを重量比で60:30:10の割合で混合した。そして、これに石油系溶剤を加えてペーストにした。得られたペーストを銅の芯材に塗布し、100℃で乾燥し、負極板とした。
式(1)で示される組成を有し、M1の結晶構造にM2が溶け込んだ、またはM2の結晶構造にM1が溶け込んだ固溶体を以下の手順で調製した。そして、これを負極活物質として用い、上述した試験セルおよび円筒形電池を組み立て、その評価を行った。
従来報告されているFe−Sn系金属間化合物(J.R.Dahnら、Journal of Electrochemical Society、146(2)414−422(1999))を活物質として用いたこと以外は、前記実施例と同様の操作を行い、同様の評価を行った。
2 ケース
3、11 セパレータ
4 金属リチウム
5 ガスケット
6、15 封口板
7 正極リード
8 正極板
9 負極リード
10 負極板
12、13 絶縁板
14 電槽
Claims (3)
- 充放電可能な正極と、非水電解質と、充放電可能な負極とからなり、
前記負極は、式(1):M 1 y M 2 z (M 1 y M 2 z は、FeSn 2 、FeSn、Fe 2 Sn、Fe 3 Sn、CuSn、Cu 2 Sn、Cu 3 Sn、Cu 6 Sn 5 、TiSn、Ti 2 Sn、Ti 3 Sn、ZrSn、Zr 2 Sn、MnSn、MnSn 2 、Mn 2 Sn、Mn 3 Sn、CoSn、CoSn 2 、Co 2 Sn、Co 3 Sn、NiSn、NiSn 2 、Ni 2 SnおよびNi 3 Snからなる群より選ばれる少なくとも1種)で示される固溶体を活物質として有しており、
前記固溶体は、M 2 がM 1 の結晶構造に溶け込んでいるか、またはM 1 がM 2 の結晶構造に溶け込んでおり、かつ、平均結晶粒径が0.05〜0.13μmである非水電解質二次電池。 - 前記式(1)で示される固溶体の平均粒径は、0.5〜2.3μmである請求項1に記載の非水電解質二次電池。
- 前記負極が、前記式(1)で示される固溶体100重量部に対して炭素材料を5〜50重量部含んでいる請求項1または2に記載の非水電解質二次電池。
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JP2010030212A JP5143852B2 (ja) | 1999-07-01 | 2010-02-15 | 非水電解質二次電池 |
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JP2010030212A JP5143852B2 (ja) | 1999-07-01 | 2010-02-15 | 非水電解質二次電池 |
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JP5143852B2 JP5143852B2 (ja) | 2013-02-13 |
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JP2010030212A Expired - Fee Related JP5143852B2 (ja) | 1999-07-01 | 2010-02-15 | 非水電解質二次電池 |
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US (1) | US6544687B1 (ja) |
EP (1) | EP1122802B1 (ja) |
JP (2) | JP4666854B2 (ja) |
KR (2) | KR100434918B1 (ja) |
CN (1) | CN1157812C (ja) |
AT (1) | ATE352877T1 (ja) |
DE (1) | DE60033128T2 (ja) |
WO (1) | WO2001003210A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015129270A1 (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 負極活物質材料、負極及び電池 |
WO2015129267A1 (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 負極活物質材料、負極及び電池 |
WO2015129264A1 (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 負極活物質材料、負極及び電池 |
JP2015159081A (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 負極活物質材料 |
WO2015129266A1 (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 複合粒子、負極及び電池 |
WO2015129265A1 (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 負極活物質材料、負極及び電池 |
WO2024024528A1 (ja) * | 2022-07-27 | 2024-02-01 | 国立大学法人長岡技術科学大学 | ナトリウムイオン二次電池用負極活物質 |
Families Citing this family (10)
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AU4885601A (en) * | 2000-04-26 | 2001-11-12 | Sanyo Electric Co., Ltd. | Lithium secondary battery-use electrode and lithium secondary battery |
JP4608743B2 (ja) * | 2000-07-19 | 2011-01-12 | パナソニック株式会社 | 非水電解質二次電池 |
KR100416094B1 (ko) * | 2001-08-28 | 2004-01-24 | 삼성에스디아이 주식회사 | 리튬 2차 전지용 음극 박막 및 그 제조 방법 |
CN1315208C (zh) * | 2002-07-04 | 2007-05-09 | 株式会社杰士汤浅 | 一种非水电解质二次电池 |
US7169328B2 (en) * | 2003-01-17 | 2007-01-30 | T/J Technologies, Inc. | Multiphase nanocomposite material and method for its manufacture |
WO2006106782A1 (ja) * | 2005-03-31 | 2006-10-12 | Matsushita Electric Industrial Co., Ltd. | リチウム二次電池 |
JP5021982B2 (ja) * | 2005-08-26 | 2012-09-12 | パナソニック株式会社 | 非水電解質二次電池 |
US20070099084A1 (en) * | 2005-10-31 | 2007-05-03 | T/J Technologies, Inc. | High capacity electrode and methods for its fabrication and use |
US20100156353A1 (en) * | 2008-12-18 | 2010-06-24 | Quantumsphere, Inc. | Lithium nanoparticle compositions for use in electrochemical applications |
KR102152883B1 (ko) | 2014-01-27 | 2020-09-07 | 삼성에스디아이 주식회사 | 음극 활물질, 이를 채용한 음극과 리튬 전지, 및 상기 음극 활물질의 제조방법 |
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- 2000-06-28 CN CNB008012121A patent/CN1157812C/zh not_active Expired - Fee Related
- 2000-06-28 AT AT00942392T patent/ATE352877T1/de not_active IP Right Cessation
- 2000-06-28 DE DE60033128T patent/DE60033128T2/de not_active Expired - Lifetime
- 2000-06-28 KR KR10-2001-7002325A patent/KR100426095B1/ko not_active IP Right Cessation
- 2000-06-28 US US09/786,450 patent/US6544687B1/en not_active Expired - Lifetime
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WO2015129267A1 (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 負極活物質材料、負極及び電池 |
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JP2015159081A (ja) * | 2014-02-25 | 2015-09-03 | 新日鐵住金株式会社 | 負極活物質材料 |
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US10270087B2 (en) | 2014-02-25 | 2019-04-23 | Nippon Steel & Sumitomo Metal Corporation | Composite particle, negative electrode and battery |
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WO2024024528A1 (ja) * | 2022-07-27 | 2024-02-01 | 国立大学法人長岡技術科学大学 | ナトリウムイオン二次電池用負極活物質 |
Also Published As
Publication number | Publication date |
---|---|
JP4666854B2 (ja) | 2011-04-06 |
ATE352877T1 (de) | 2007-02-15 |
WO2001003210A1 (fr) | 2001-01-11 |
DE60033128D1 (de) | 2007-03-15 |
KR20040028982A (ko) | 2004-04-03 |
JP5143852B2 (ja) | 2013-02-13 |
KR100434918B1 (ko) | 2004-06-09 |
EP1122802A1 (en) | 2001-08-08 |
KR100426095B1 (ko) | 2004-04-06 |
CN1157812C (zh) | 2004-07-14 |
EP1122802A4 (en) | 2005-06-08 |
CN1316108A (zh) | 2001-10-03 |
KR20010072909A (ko) | 2001-07-31 |
US6544687B1 (en) | 2003-04-08 |
EP1122802B1 (en) | 2007-01-24 |
DE60033128T2 (de) | 2007-11-29 |
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