JP4165717B2 - リチウム二次電池およびその製造方法 - Google Patents
リチウム二次電池およびその製造方法 Download PDFInfo
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- JP4165717B2 JP4165717B2 JP2006211561A JP2006211561A JP4165717B2 JP 4165717 B2 JP4165717 B2 JP 4165717B2 JP 2006211561 A JP2006211561 A JP 2006211561A JP 2006211561 A JP2006211561 A JP 2006211561A JP 4165717 B2 JP4165717 B2 JP 4165717B2
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- Prior art keywords
- lithium
- negative electrode
- secondary battery
- lithium secondary
- positive electrode
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Battery Electrode And Active Subsutance (AREA)
Description
酸化チタンとしてはアナターゼ型のものを用い、このアナターゼ型酸化チタン2モルと水酸化リチウム1モルとを混合し、空気雰囲気中800℃で8時間電気炉中で焼成してチタン酸リチウムを合成した。得られたチタン酸リチウムは、原子吸光分析法により元素分析をしたところ、Li1.33Ti1.67O4であった。
LiN(CF3SO2)2に代えて、LiPF6をエチレンカーボネートとジエチルカーボネートとの体積比1:1の混合溶媒に1.0mol/l溶解させて調製した電解液を用いたほかは、実施例1と同様にしてリチウム二次電池を作製した。
正極活物質として、チタン酸リチウムに代えて、リチウム鉄酸化物(LiFe5O8)を用いた以外は、実施例1と同様にしてリチウム二次電池を作製した。
充電条件:定電流0.1mA、充電カット電圧2.4V。
放電条件:定電流0.1mA、放電カット電圧0.4V。
2 負極
3 セパレータ
Claims (9)
- 一般式LixTiyO4(0.8≦x≦1.33、1.67≦y≦2.2)で表わされ、かつ化学量論数を持つチタン酸リチウム、導電助材およびバインダーを含有する正極と、炭素材を含有する負極と、リチウム塩を有機溶媒に溶解してなる電解液とを有しており、
正極中の上記チタン酸リチウム量が70〜90質量%であり、
負極の含有する上記炭素材は、上記電解液の存在下で予めリチウムイオンがドープされているものであることを特徴とするリチウム二次電池。 - 一般式Li x Ti y O 4 において、xとyがそれぞれ、x=1.33、y=1.67である請求項1記載のリチウム二次電池。
- 正極における導電助材量が5〜20質量%で、バインダー量が1〜10質量%である請求項1または2に記載のリチウム二次電池。
- 負極が、黒鉛とバインダーとからなる請求項1〜3のいずれかに記載のリチウム二次電池。
- リチウム塩が、LiN(CF3SO2)2、LiPF6、LiCF3SO3およびLiBF4よりなる群から選ばれる少なくとも1種である請求項1〜4のいずれかに記載のリチウム二次電池。
- 一般式LixTiyO4(0.8≦x≦1.33、1.67≦y≦2.2)で表わされ、かつ化学量論数を持つチタン酸リチウム、導電助材およびバインダーを含有する正極と、炭素材を含有する負極と、リチウム塩を有機溶媒に溶解してなる電解液とを有するリチウム二次電池を製造するにあたり、
正極中の上記チタン酸リチウム量を70〜90質量%とし、
負極の含有する上記炭素材に、上記電解液の存在下で予めリチウムイオンをドープさせることを特徴とするリチウム二次電池の製造方法。 - 負極の含有する炭素材へのリチウムイオンのドープを、電池組み立て時に行う請求項6に記載のリチウム二次電池の製造方法。
- 正極の電気容量の80%に相当する金属リチウムを用いて、負極の含有する炭素材にリチウムイオンをドープさせる請求項6または7に記載のリチウム二次電池の製造方法。
- 金属リチウムを、負極におけるセパレータと対向する側の面に配置して、負極の含有する炭素材にリチウムイオンをドープさせる請求項8に記載のリチウム二次電池の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006211561A JP4165717B2 (ja) | 1996-06-14 | 2006-08-03 | リチウム二次電池およびその製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17600196 | 1996-06-14 | ||
JP2006211561A JP4165717B2 (ja) | 1996-06-14 | 2006-08-03 | リチウム二次電池およびその製造方法 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP15750697A Division JP4052695B2 (ja) | 1996-06-14 | 1997-05-30 | リチウム二次電池 |
Publications (2)
Publication Number | Publication Date |
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JP2006324258A JP2006324258A (ja) | 2006-11-30 |
JP4165717B2 true JP4165717B2 (ja) | 2008-10-15 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006211561A Expired - Lifetime JP4165717B2 (ja) | 1996-06-14 | 2006-08-03 | リチウム二次電池およびその製造方法 |
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JP (1) | JP4165717B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5207282B2 (ja) * | 2008-01-21 | 2013-06-12 | Necエナジーデバイス株式会社 | リチウム二次電池 |
US20130171519A1 (en) * | 2010-06-25 | 2013-07-04 | Kanji Shimizu | Electrode collector material and method for manufacturing the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06251758A (ja) * | 1993-02-24 | 1994-09-09 | A T Battery:Kk | 高容量円筒形電池 |
JPH07288124A (ja) * | 1994-04-15 | 1995-10-31 | Haibaru:Kk | 非水電解液二次電池 |
JPH08180875A (ja) * | 1994-12-24 | 1996-07-12 | Aichi Steel Works Ltd | リチウム二次電池 |
JP3661104B2 (ja) * | 1995-05-10 | 2005-06-15 | ニッポン高度紙工業株式会社 | 非水系電池 |
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- 2006-08-03 JP JP2006211561A patent/JP4165717B2/ja not_active Expired - Lifetime
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