JP2007305521A - リチウムイオン蓄電素子 - Google Patents
リチウムイオン蓄電素子 Download PDFInfo
- Publication number
- JP2007305521A JP2007305521A JP2006135163A JP2006135163A JP2007305521A JP 2007305521 A JP2007305521 A JP 2007305521A JP 2006135163 A JP2006135163 A JP 2006135163A JP 2006135163 A JP2006135163 A JP 2006135163A JP 2007305521 A JP2007305521 A JP 2007305521A
- Authority
- JP
- Japan
- Prior art keywords
- laminated
- electrode body
- lithium
- lithium ion
- negative electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 73
- 238000003860 storage Methods 0.000 title claims abstract description 36
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 50
- 150000001450 anions Chemical class 0.000 claims abstract description 16
- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 11
- 239000007774 positive electrode material Substances 0.000 claims description 8
- 239000007773 negative electrode material Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910003002 lithium salt Inorganic materials 0.000 claims description 3
- 159000000002 lithium salts Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 208000028659 discharge Diseases 0.000 description 12
- 239000003792 electrolyte Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 239000011888 foil Substances 0.000 description 7
- 230000002441 reversible effect Effects 0.000 description 7
- 239000008151 electrolyte solution Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- HEPLMSKRHVKCAQ-UHFFFAOYSA-N lead nickel Chemical compound [Ni].[Pb] HEPLMSKRHVKCAQ-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000005001 laminate film Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000005021 flexible packaging material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021470 non-graphitizable carbon Inorganic materials 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
【解決手段】積層電極体20の積層端面に平行に対面しながら沿う帯状導電支持体25と、この導電支持体25の電極体20側面に沿って添着されたリチウム金属41を有し、そのリチウム金属41が上記電極体20の負極23に導電接続されている。
【選択図】図1
Description
上記積層電極体の積層端面に平行対面しながら沿うように設置された帯状導電支持体と、この導電支持体の上記電極体側面に沿って添着されたリチウム金属を有するとともに、このリチウム金属が上記導電支持体を介して上記電極体の負極に導電接続されていることを特徴とするリチウムイオン蓄電素子。
同図において、(a)は破断正面図、(b)は(a)のA−A断面図をそれぞれ示す。同図に示す蓄電素子10は、正極21と負極23とがセパレータ22を介して対向させられた電極体20が、非水電解液24とともに素子容器11に密閉収容されている。
正極の作製:正極材料である黒鉛粉末と結着剤であるカルボキシメチルセルロース(第一工業薬品(株)セロゲン4H)を97:3の重量比で混合し、これにイオン交換水を加えてペースト状の合剤を調製した。この合剤を、集電体となる厚さ20μmのアルミニウム箔の両面に塗布した。これに乾燥および圧延操作を行った後、所定形状態に切断してシート状の正極を作製した。切断した正極には、正極端子との接続のためのタブとなる未塗布部分も含まれている。
上記実施例に対し、リチウム金属が貼着されたニッケル製リードは配置せず、その代わり、図2に示したように、負極集電体の未塗布部(余白部)にリチウム金属を貼着した。その他は実施例と同様にして従来例のリチウムイオン蓄電素子を作製した。
実施例と従来例の蓄電素子をそれぞれ45℃の恒温槽に放置し、リチウム金属が完全に溶解するまでの時間を測定した。その結果は、実施例のもので5日間、従来例のもので20日間となった。
21 正極、211 正極材、212 正極集電体、213 タブ、
22 セパレータ
23 負極、231 負極材、232 負極集電体、233 タブ、
24 非水電解液、25 導電支持体、26 連結リード、
31 正極端子、33 負極端子、41 リチウム金属
Claims (2)
- アニオンの吸蔵・放出が可能な正極材が正極集電体上に設置された矩形シート状正極と、リチウムイオンの吸蔵・放出が可能な負極材が負極集電体上に設置された矩形シート状負極が、間にセパレータを介在させながら交互に積層された矩形状の積層電極体と、リチウム塩を溶解させた非水電解液と、上記積層電極体を上記非水電解液とともに収容して密閉封止された素子容器とを備えたリチウムイオン蓄電素子であって、
上記積層電極体の積層端面に平行対面しながら沿うように設置された帯状導電支持体と、この導電支持体の上記電極体側面に沿って添着されたリチウム金属を有するとともに、このリチウム金属が上記導電支持体を介して上記電極体の負極に導電接続されていることを特徴とするリチウムイオン蓄電素子。 - 請求項1において、前記積層電極体は、その一側辺から正極および負極の端子リードが引き出されるように構成され、前記導電支持体は、上記積層電極体の4側辺のうち、上記端子リードの引き出し側辺を除く3側辺の積層端面に平行対面しながら沿うように設置され、前記リチウム金属は、その3側辺の積層端面に対面すべく添着されていることを特徴とするリチウムイオン蓄電素子。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006135163A JP4928828B2 (ja) | 2006-05-15 | 2006-05-15 | リチウムイオン蓄電素子 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2006135163A JP4928828B2 (ja) | 2006-05-15 | 2006-05-15 | リチウムイオン蓄電素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007305521A true JP2007305521A (ja) | 2007-11-22 |
JP4928828B2 JP4928828B2 (ja) | 2012-05-09 |
Family
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JP2006135163A Active JP4928828B2 (ja) | 2006-05-15 | 2006-05-15 | リチウムイオン蓄電素子 |
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JP (1) | JP4928828B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10622164B2 (en) | 2015-07-10 | 2020-04-14 | Taiyo Yuden Co., Ltd. | Electrochemical device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014112524A (ja) | 2012-11-12 | 2014-06-19 | Ricoh Co Ltd | 非水電解液蓄電素子 |
JP2014130717A (ja) | 2012-12-28 | 2014-07-10 | Ricoh Co Ltd | 非水電解液蓄電素子 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002093666A1 (fr) * | 2001-05-15 | 2002-11-21 | Fdk Corporation | Batterie electrolytique secondaire non aqueuse et procede de production d'un materiau d'anode associe |
WO2004034491A1 (ja) * | 2002-10-11 | 2004-04-22 | Fdk Corporation | 非水電解質二次電池、及びこの非水電解二次電池に用いる正極の製造方法 |
JP2005100706A (ja) * | 2003-09-22 | 2005-04-14 | Fdk Corp | 非水電解質二次電池 |
-
2006
- 2006-05-15 JP JP2006135163A patent/JP4928828B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002093666A1 (fr) * | 2001-05-15 | 2002-11-21 | Fdk Corporation | Batterie electrolytique secondaire non aqueuse et procede de production d'un materiau d'anode associe |
WO2004034491A1 (ja) * | 2002-10-11 | 2004-04-22 | Fdk Corporation | 非水電解質二次電池、及びこの非水電解二次電池に用いる正極の製造方法 |
JP2005100706A (ja) * | 2003-09-22 | 2005-04-14 | Fdk Corp | 非水電解質二次電池 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10622164B2 (en) | 2015-07-10 | 2020-04-14 | Taiyo Yuden Co., Ltd. | Electrochemical device |
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