JPS63239781A - Lithium ion conductive eiectrolyte - Google Patents
Lithium ion conductive eiectrolyteInfo
- Publication number
- JPS63239781A JPS63239781A JP62071589A JP7158987A JPS63239781A JP S63239781 A JPS63239781 A JP S63239781A JP 62071589 A JP62071589 A JP 62071589A JP 7158987 A JP7158987 A JP 7158987A JP S63239781 A JPS63239781 A JP S63239781A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- electrolyte
- ion conductive
- lithium salt
- li3alf6
- 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.)
- Pending
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 9
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 19
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 14
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 14
- 239000011255 nonaqueous electrolyte Substances 0.000 claims abstract description 8
- 239000005518 polymer electrolyte Substances 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims abstract description 3
- 239000003125 aqueous solvent Substances 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 abstract description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 21
- 239000002904 solvent Substances 0.000 abstract description 6
- 229910012140 Li3AlF6 Inorganic materials 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 5
- 150000002894 organic compounds Chemical class 0.000 abstract description 2
- 150000001450 anions Chemical class 0.000 description 8
- 238000007599 discharging Methods 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical class C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 5
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 229910013075 LiBF Inorganic materials 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- -1 polyparaphenylene Polymers 0.000 description 3
- 229910013872 LiPF Inorganic materials 0.000 description 2
- 101150058243 Lipf gene Proteins 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- 229920003026 Acene Polymers 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 101150004907 litaf gene Proteins 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 229920000555 poly(dimethylsilanediyl) polymer Polymers 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000921 polyethylene adipate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000634 wood's metal Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、リチウムを負極活物質とする電池、あるいは
リチウムイオン又はアニオンをドープしたものを電極と
する電池に用いられる非水電解液あるいは高分子電解質
を構成する電解質に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a nonaqueous electrolyte or a high It relates to electrolytes that constitute molecular electrolytes.
リチウムを負極活物質として用いるリチウム電池は高エ
ネルギー密度の電池としてよく知られている。例えば、
負極にリチウム金属、リチウム−アルミニウム合金、あ
るいはウッドメタル系化合物とリチウムの合金を用い、
正極にＴｉＥｊ、、カーボン、（ＣＦ）ｎあるいはＭｎ
Ｏ，等を用いたリチウム電池が提案されている。また、
π電子共役系を有する化合物（例えば、ポリアセチレン
、ポリアセン、ポリパラフェニレン等）にリチウムイオ
ンやアニオンをドープしたものを電極に用いる電池も広
く研究されている。これらの電池には、ｘ、１ａｔｏい
ＬｉＢＦいＬｉＡｓ Ｆ６ 、Ｌｉ ＰＦａ、ｘａｘａ
ｙ、ｇｏ３あるいはＬｉｈｔｃｔ、等のリチウム塩を非
水溶媒（例えば、プロビレ／カーボネート、γ−ブチロ
ラクトン、テトラヒドロフラン誘導体、ジアルコキシエ
タン類、Ｂｏｏｔｆｆｉ等）に溶解させた非水電解液あ
るいは前記リチウム塩を高分子マトリックス（例えば、
ポリエチレンオキシド等）中に含んだ高分子電解質が用
いられている。Lithium batteries that use lithium as a negative electrode active material are well known as high energy density batteries. for example,
Using lithium metal, lithium-aluminum alloy, or an alloy of wood metal compound and lithium for the negative electrode,
TiEj, carbon, (CF)n or Mn for the positive electrode
Lithium batteries using O, etc. have been proposed. Also,
Batteries using compounds having a π-electron conjugated system (for example, polyacetylene, polyacene, polyparaphenylene, etc.) doped with lithium ions or anions as electrodes have also been widely studied. These batteries include x, 1ato LiBF, LiAs F6, Li PFa, xaxa
A non-aqueous electrolyte solution in which a lithium salt such as y, go3 or Lihtct is dissolved in a non-aqueous solvent (e.g., probile/carbonate, γ-butyrolactone, tetrahydrofuran derivatives, dialkoxyethanes, Bootffi, etc.) or the lithium salt is Molecular matrices (e.g.
Polymer electrolytes contained in polyethylene oxide (polyethylene oxide, etc.) are used.
そして、％Ｋ ＬｉｈａＦ、、ＬｉＢＦ、等の大きなア
ニオンを有する電解質を用いると放電あるいは充放電特
性が良好になることが知られている。しかし、ＬｉＡｓ
Ｆ、やＬｉｄ？、は、極く微量の不純物が存在しても
分解し易く、溶媒や電極材料と反応し易いという欠点を
有し、実用上、その安定性が問題となっている。これを
改善するために新しい電解質としてＬｉＴａＦ、やＬｌ
、ａｅｐ、（第５回リチウム電池国際集会予稿集、第１
５５〜１５６頁、１９８６年）が提案されている。It is known that using an electrolyte having a large anion such as %K LihaF, LiBF, etc. improves the discharge or charge/discharge characteristics. However, LiAs
F, Lid? has the drawbacks of being easily decomposed even in the presence of extremely small amounts of impurities and easily reacting with solvents and electrode materials, and its stability has become a problem in practice. To improve this, new electrolytes such as LiTaF and Ll
, aep, (Proceedings of the 5th International Conference on Lithium Batteries, Vol. 1
55-156, 1986) has been proposed.
しかしながら、溶媒を酸化分解してしまう等の欠点があ
るだけでなく、リチウムの充放電特性も不明であり、新
しい電解質の開発は不充分なのが現状である。更に、リ
チウム塩を非水溶媒に溶解させた非水電解液は電気二重
層を利用したキャパンタへの応用も考えられ、新しい電
解質の開発はこの分野への適用を考慮しても、重要であ
る。However, not only do they have drawbacks such as oxidative decomposition of the solvent, but also the charging and discharging characteristics of lithium are unknown, and the development of new electrolytes is currently insufficient. Furthermore, a non-aqueous electrolyte in which a lithium salt is dissolved in a non-aqueous solvent can be applied to capantas using an electric double layer, and the development of new electrolytes is important even when considering application to this field. .
本発明はこのような現状にかんがみてなされたものであ
り、その目的は、安定性が高く、かつ、リチウムの充放
電が可能なリチウムイオン伝導性電解質を提供すること
にある。The present invention has been made in view of the current situation, and its purpose is to provide a lithium ion conductive electrolyte that is highly stable and capable of charging and discharging lithium.
本発明を概説すれば、本発明はリチウムイオン伝導性電
解質に関する発明であって、リチウム塩を非水溶媒に溶
解させた非水電解液、あるいはリチウム塩を高分子マト
リックス中に含む高分子電解質において、前記リチウム
塩としてＬｉ、ムｊＦ、 を用いたことを特徴とする
。To summarize the present invention, the present invention relates to a lithium ion conductive electrolyte, which is a non-aqueous electrolyte in which a lithium salt is dissolved in a non-aqueous solvent, or a polymer electrolyte containing a lithium salt in a polymer matrix. , Li, MujF, are used as the lithium salt.
本発明について更に詳しく説明する。The present invention will be explained in more detail.
リチウム電池、特にリチウム二次電池用電解液の電解質
としてＬｉＡａｌＦ、 、ＬｉＰＦｌｌ 、ＬｉＢＦ、
等が多用されている。これらの電解質のアニオン（Ａｓ
Ｆ、″、ＰＦ、−１ＢＩＦ、″）は、ルイス塩基である
Ｆ″″ とルイス酸であるムａ烏、ＰＩＦ、 、 ＢＰ
、との錯イオンであり、電解質の分解はこの錯体イオ／
の配位結合が切断されることに帰因する。例えば、Ｌｉ
ム８１Ｐ６の場合、式（１）のように分解する。As electrolytes for lithium batteries, especially lithium secondary batteries, LiAalF, , LiPFll, LiBF,
etc. are often used. These electrolyte anions (As
F,'', PF, -1BIF,'') are Lewis base F'''' and Lewis acid Mua, PIF, , BP
, and the decomposition of the electrolyte is caused by this complex ion/
This is due to the cleavage of the coordination bond. For example, Li
In the case of program 81P6, it is decomposed as shown in equation (1).
Ｌ１ム５ＩＦ６→ＬＬＩＰ十ムｓＦ５ ｓｅａ （
１）つまり、電解質を安定化させるためにはいかＫして
アニオン中の特定の？原子に電荷密度を集中させないよ
うにするか、すなわち等電子的に負電荷をアニオン中に
分散させるか、ということが必要である。本発明で用い
るＬｉ、ＡｊＦ−のやＰＦ、−（Ａ ２ Ａ ）と大差
ないが、５価のアニオン（ＡｊＦ、”−）であるため、
アニオンの電子密度は約５倍と高い。このためアニオン
はよシ安定化するものと推定される。L1mu5IF6→LLIP10mu sF5 sea (
1) In other words, how can we stabilize the electrolyte by increasing the amount of K in the anion? It is necessary to prevent the charge density from concentrating on the atoms, or to disperse the negative charges isoelectronically into the anions. Although it is not much different from Li, AjF- and PF, -(A 2 A ) used in the present invention, since it is a pentavalent anion (AjF, "-),
The electron density of anions is about 5 times higher. Therefore, it is presumed that the anion becomes more stable.
本発明に用いられるＬｉ、ＡｒＩＦ、を溶解させる非水
溶媒は、通常、リチウム電池に用いられる電解液溶媒を
用いることができる。例えば、プロピレンカーボネート
、γ−ブチロラクトン、スルホラン、エチレンカーボネ
ート、テトラヒドロフラン、ジメトキシエタン、ジオキ
ソラン、２−メチルテトラヒドロフジン、４−メチル−
１，３−ジオキノラン、ＢＯＱ４等の中から選ばれた少
なくとも１種以上の溶媒を用いることができる。また、
本発明に用いられるＬｉ、ム１１６ を使用する高分子
電解質のマトリックスとしては、通常、リチウムイオン
伝導性高分子固体電解質に用いられる高分子材料を用い
ることができる。As the non-aqueous solvent for dissolving Li and ArIF used in the present invention, an electrolyte solvent normally used for lithium batteries can be used. For example, propylene carbonate, γ-butyrolactone, sulfolane, ethylene carbonate, tetrahydrofuran, dimethoxyethane, dioxolane, 2-methyltetrahydrofuzine, 4-methyl-
At least one solvent selected from 1,3-dioquinolane, BOQ4, etc. can be used. Also,
As the matrix of the polymer electrolyte using Li or Mu116 used in the present invention, a polymer material normally used for a lithium ion conductive polymer solid electrolyte can be used.
例えば、ポリエチレンオキシド、ポリエチレングリコー
ルメタクリレート、ポリエチレンアジペート、ポリビニ
ルアセテート、ポリプロピレンオキシド、ポリジメチル
シロ中サン等の中から選ばれた少なくとも１種以上の化
合物を用いることができる。For example, at least one compound selected from polyethylene oxide, polyethylene glycol methacrylate, polyethylene adipate, polyvinyl acetate, polypropylene oxide, polydimethylsilane, etc. can be used.
以下、本発明を実施例によシ更ＫＡ体的に説明するが、
本発明はこれら実施例に限定されない。Hereinafter, the present invention will be concretely explained using examples.
The invention is not limited to these examples.
実施例１
電解液として、エチレンカーボネート（以下、里Ｃと略
記）と２−メチルテトラヒドロフジン（以下、２ＭｅＴ
ＨＦ’と略記）との混合溶媒（体積混合比、１：１）に
αＯｆ５Ｍ（Ｍ：モル／／）のＬｉ、ム／ＩＦ、 を
溶解したものを作製した。従来知られている一１ＦＦ、
やＬｉ、ＴａＦ、 では、溶媒の分解が見られたのに
対し、ＩＩｉ、ム／？、 を用いた上記電解液は、無
色透明のままで安定していた。本発明による上記電解液
の２５℃における導電率は五３×１０″″Ｉ日１−！で
あり、テトラヒドロフランに対して安定であると報告さ
れているＬｊ４ＧｅＦａの導電率（１゜６Ｘ１０”Ｓα
−１）より１桁高かった本発明による上記電解液を用い
て、以下に述べる方法によってリチウムの充放電効率２
求めた。充放電効率（Ｅ＆）は作用極に白金を、対極及
び参照電極としてリチウムを用いた電池を作製し、以下
のように測定した。測定は、まず５μＡ／ｃａ？の定１
流で８０分間白金極上に１ルチウムを析出嘔せた（＆７
μＡｈ／ｃｒＩ？）。この操作でリチウムが析出し、Ｌ
ｉ、Ａ４Ｆ、はＩ、ｉ＋イオン伝導性であることがわか
る。その後、析出させたリチウムの一部（１，７μムｈ
／、、？）をＬ１＋イオンとして放電し、再び更に１．
７μムｈ／Ｊの容量で放電するサイクル試験を繰返した
。充放電効率（ｍｓ）は白金極の電位の変化よう求め、
見掛は上１００チの効率を示すサイクル数をｎとすると
、下記の式（ＩＩ）より、前記Ｋａを求めることができ
る。Example 1 Ethylene carbonate (hereinafter abbreviated as Ri-C) and 2-methyltetrahydrofuzine (hereinafter 2MeT) were used as electrolytes.
A product was prepared by dissolving αOf5M (M: mol//) of Li, Mu/IF, in a mixed solvent (volume mixing ratio, 1:1) with HF' (abbreviated as HF'). Conventionally known 1FF,
, Li, TaF, etc., decomposition of the solvent was observed, whereas IIi, Mu/? The above electrolyte solution using , remained colorless and transparent and stable. The conductivity of the electrolyte according to the invention at 25° C. is 53×10″I day 1−! The conductivity of Lj4GeFa (1°6X10”Sα), which is reported to be stable in tetrahydrofuran, is
-1) Using the electrolyte according to the present invention, which was one order of magnitude higher than that of lithium charge/discharge efficiency 2, the method described below
I asked for it. The charge/discharge efficiency (E&) was measured as follows using a battery using platinum as a working electrode and lithium as a counter electrode and a reference electrode. First, measure 5μA/ca? Determination 1
1 rutium was deposited on the platinum electrode for 80 minutes by flowing water (&7
μAh/crI? ). In this operation, lithium is precipitated and L
It can be seen that i,A4F, has I,i+ ion conductivity. After that, a part of the precipitated lithium (1.7 μm h
/,,? ) is discharged as L1+ ions, and again 1.
A cycle test of discharging at a capacity of 7 μm h/J was repeated. The charge/discharge efficiency (ms) is determined by the change in potential of the platinum electrode,
Assuming that the number of cycles indicating an apparent efficiency of 100 cm is n, the above Ka can be determined from the following formula (II).
ＫＡ−（１，７−（ｉｙ−１，７）、／ｎ）、／ｉ、７
Ｘ １００ｍ ｏ、＊（Ｈ）結果を第１表に他の例と共
に示す。第１表には、比較例として、Ｉ Ｍ ＬｉＰＦ
、 −ＩＣ／２Ｍｅ ＴＨＩ！ （体積混合比、１／１
）を用いた場合のリチウムの充Ｏ放電効率も示しで
ある。Ｌｉ３ＡｌＦ６を用いた場合〔第１表（４）〕は
ＬｉＰＦ、を用いた場合〔第１表■）〕より高いリチウ
ムの充放電効率を示すことがわかる。KA-(1,7-(iy-1,7),/n),/i,7
X 100m o, *(H) The results are shown in Table 1 along with other examples. Table 1 shows I M LiPF as a comparative example.
, -IC/2Me THI! (Volume mixing ratio, 1/1
) is also shown for the charging and discharging efficiency of lithium. It can be seen that the case where Li3AlF6 is used [Table 1 (4)] shows higher lithium charge/discharge efficiency than the case where LiPF is used [Table 1 (■)].
実施例２
実施例１と同じ電解液を用いて、充放電電流密度を５０
μＡ／、ｍ”に設定した以外は実施例１と同様にしてリ
チウムの充放電効率を求めた。結果をｔ＄、１表（Ｃ）
に示す。第１表から判るように、本発明のＬｉ、Ａ４Ｐ
Ｆ、を用いた場合、ＬｉＩ’？、を用いた場合〔第１表
ａ３）〕よりも高いリチウムの充放電効率を示すことが
判る。Example 2 Using the same electrolyte as in Example 1, the charging/discharging current density was set to 50
The charging and discharging efficiency of lithium was determined in the same manner as in Example 1 except that it was set to μA/, m''.The results are expressed in t$, Table 1 (C)
Shown below. As can be seen from Table 1, the Li, A4P of the present invention
When using F, LiI'? It can be seen that a higher lithium charging/discharging efficiency is exhibited than when using , [Table 1 a3)].
第１表
充放電電流密度： ａ）５／’Ａ／ｉ 、ｂ）ｓａｐム
Ａ７ＥＣ；エチレンカーホネート、２ＭｅＴ！ＩＦ’：
２−メチルテトラヒドロフラン〔発明の効果〕
以上説明したように、本発明によるＬｉ、ム／Ｆ。Table 1 Charging and discharging current density: a) 5/'A/i, b) sapm A7EC; ethylene carbonate, 2MeT! IF':
2-Methyltetrahydrofuran [Effects of the Invention] As explained above, Li, Mu/F according to the present invention.
はＬｉ＋イオン伝導性を有し、有機化合物に対して安定
で、かつＬｌの充放電効率も高いため、Ｌｉ、ム／ＩＦ
６ をリチウム塩として用いることによシ特性が優れ
たＬｉ＋イオン伝導性の非水電解液あるいは高分子電解
質を提供できるという利点がある。has Li+ ion conductivity, is stable against organic compounds, and has high charge/discharge efficiency of Ll, so Li, Mu/IF
By using 6 as a lithium salt, there is an advantage that a Li+ ion conductive non-aqueous electrolyte or polymer electrolyte with excellent lithium properties can be provided.
Claims (1)
るいはリチウム塩を高分子マトリックス中に含む高分子
電解質において、前記リチウム塩としてＬｉ＿３ＡｌＦ
＿６を用いたことを特徴とするリチウムイオン伝導性電
解質。1. In a non-aqueous electrolyte in which a lithium salt is dissolved in a non-aqueous solvent or a polymer electrolyte containing a lithium salt in a polymer matrix, Li_3AlF is used as the lithium salt.
A lithium ion conductive electrolyte characterized by using _6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62071589A JPS63239781A (en) | 1987-03-27 | 1987-03-27 | Lithium ion conductive eiectrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62071589A JPS63239781A (en) | 1987-03-27 | 1987-03-27 | Lithium ion conductive eiectrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63239781A true JPS63239781A (en) | 1988-10-05 |
Family
ID=13465012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62071589A Pending JPS63239781A (en) | 1987-03-27 | 1987-03-27 | Lithium ion conductive eiectrolyte |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63239781A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0372584A2 (en) * | 1988-12-09 | 1990-06-13 | Dow Corning Corporation | Acrylate functional organosiloxane/oxyalkylene copolymers and electrically conductive compositions containing same and a solubilized lithium salt |
| WO1997037394A1 (en) * | 1996-03-29 | 1997-10-09 | Consiglio Nazionale Delle Ricerche | GALLIUM DOPED LITHIUM MANGANESE OXIDE SPINELS (LiGaxMn2-xO4) AS ACTIVE CATHODE MATERIAL FOR LITHIUM OR LITHIUM-ION RECHARGEABLE BATTERIES WITH IMPROVED CYCLING PERFORMANCE |
| WO2003012894A2 (en) * | 2001-08-01 | 2003-02-13 | California Institute Of Technology | Solid acid electrolytes for electrochemical devices |
| WO2004042853A1 (en) * | 2002-10-30 | 2004-05-21 | Smith Novis W | Separators for electrochemical devices having an ionically conductive solid compound therein |
| US7250232B2 (en) | 2004-06-10 | 2007-07-31 | California Institute Of Technology | Processing techniques for the fabrication of solid acid fuel cell membrane electrode assemblies |
| US7416803B2 (en) | 1999-01-22 | 2008-08-26 | California Institute Of Technology | Solid acid electrolytes for electrochemical devices |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204478A (en) * | 1982-05-24 | 1983-11-29 | Asahi Chem Ind Co Ltd | High output battery |
-
1987
- 1987-03-27 JP JP62071589A patent/JPS63239781A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204478A (en) * | 1982-05-24 | 1983-11-29 | Asahi Chem Ind Co Ltd | High output battery |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0372584A2 (en) * | 1988-12-09 | 1990-06-13 | Dow Corning Corporation | Acrylate functional organosiloxane/oxyalkylene copolymers and electrically conductive compositions containing same and a solubilized lithium salt |
| WO1997037394A1 (en) * | 1996-03-29 | 1997-10-09 | Consiglio Nazionale Delle Ricerche | GALLIUM DOPED LITHIUM MANGANESE OXIDE SPINELS (LiGaxMn2-xO4) AS ACTIVE CATHODE MATERIAL FOR LITHIUM OR LITHIUM-ION RECHARGEABLE BATTERIES WITH IMPROVED CYCLING PERFORMANCE |
| US6274278B1 (en) | 1996-03-29 | 2001-08-14 | Consiglio Nazionale Delle Ricerche | Gallium doped lithium manganese oxide spinels (LiGaxMn2−xO4) as cathode material for lithium or lithium-ion rechargeable batteries with improved cycling performance |
| US7416803B2 (en) | 1999-01-22 | 2008-08-26 | California Institute Of Technology | Solid acid electrolytes for electrochemical devices |
| WO2003012894A2 (en) * | 2001-08-01 | 2003-02-13 | California Institute Of Technology | Solid acid electrolytes for electrochemical devices |
| WO2003012894A3 (en) * | 2001-08-01 | 2003-04-24 | California Inst Of Techn | Solid acid electrolytes for electrochemical devices |
| JP2004537834A (en) * | 2001-08-01 | 2004-12-16 | カリフォルニア・インスティテュート・オブ・テクノロジー | Solid acid electrolyte for electrochemical devices |
| JP4754782B2 (en) * | 2001-08-01 | 2011-08-24 | カリフォルニア・インスティテュート・オブ・テクノロジー | Solid acid electrolytes for electrochemical devices |
| WO2004042853A1 (en) * | 2002-10-30 | 2004-05-21 | Smith Novis W | Separators for electrochemical devices having an ionically conductive solid compound therein |
| US7250232B2 (en) | 2004-06-10 | 2007-07-31 | California Institute Of Technology | Processing techniques for the fabrication of solid acid fuel cell membrane electrode assemblies |
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