JPS63168969A - Nonaqueous electrolyte cell - Google Patents
Nonaqueous electrolyte cellInfo
- Publication number
- JPS63168969A JPS63168969A JP31334486A JP31334486A JPS63168969A JP S63168969 A JPS63168969 A JP S63168969A JP 31334486 A JP31334486 A JP 31334486A JP 31334486 A JP31334486 A JP 31334486A JP S63168969 A JPS63168969 A JP S63168969A
- Authority
- JP
- Japan
- Prior art keywords
- solute
- solvent
- battery
- lithium
- nonaqueous electrolyte
- 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
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 11
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 14
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 claims description 5
- 239000011149 active material Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 abstract 6
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000012046 mixed solvent Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910013075 LiBF Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004080 punching Methods 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
- H01M6/162—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
イ、 産業上の利用分野
本発明はリチウム又はリチウムを含む合金を負極活物質
とする非水電解液電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a non-aqueous electrolyte battery using lithium or an alloy containing lithium as a negative electrode active material.
口、 従来の技術
この種電池の非水電解液を構成する溶質及び溶媒として
は種々提案きれている。例えば溶質としては過塩素酸リ
チウム（Ｌ ｉＣｆ！ ０４）、ホウフン化リチウム（
ＬｉＢＦ＋）或いは塩化リチウム（Ｌ １ＣＰ）など、
又溶媒としてはプロピレンカーボネート（ＰＣ）、エチ
レンカーボネート（ＥＣ）、γ−ブチロラクトン（γ−
ＢＬ）或いはテトラヒドロフラン（Ｔ ＨＦ ）などが
知られている。BACKGROUND OF THE INVENTION Various solutes and solvents have been proposed for forming the non-aqueous electrolyte of this type of battery. For example, as a solute, lithium perchlorate (LiCf! 04), lithium borofluoride (
LiBF+) or lithium chloride (L 1CP), etc.
In addition, as a solvent, propylene carbonate (PC), ethylene carbonate (EC), γ-butyrolactone (γ-
BL) or tetrahydrofuran (THF) are known.
ハ、 発明が解決しようとする問題点
近年においてはこの種電池の適用分野の拡大に伴い電池
特性の改善が望まれており、その一つとして低温放電特
性の向上が要預されている。C. Problems to be Solved by the Invention In recent years, as the fields of application of this type of battery have expanded, improvements in battery characteristics have been desired, and one of the demands is to improve low-temperature discharge characteristics.
ところで、この種電池は放電に伴いリチウム負極表面の
リチウムイオン濃度が大きくなるのであるが、低温時に
おいては溶媒に対する溶質の溶解度が小さくなるため溶
質が負極上に析出することになり、負極の有効反応面積
が減少して電池特性が低下するという問題がある。By the way, in this type of battery, the lithium ion concentration on the surface of the lithium negative electrode increases as it is discharged, but at low temperatures the solubility of the solute in the solvent decreases, so the solute precipitates on the negative electrode, reducing the effectiveness of the negative electrode. There is a problem that the reaction area decreases and battery characteristics deteriorate.
二、 問題点を解決するための手段
本発明は上記問題点を解決すべくなされたものであり、
非水電解液を構成する溶質として少くともトリフルオロ
メタンスルホン酸リチウムを用い、又溶媒として少くと
もエチレンカーポネ−１・と１，２ジメトキシエタンと
を用いることを特徴とし、低温放電特性に優れた非水電
解液電池を提供することを目的とするものである。2. Means for solving the problems The present invention has been made to solve the above problems,
It is characterized by using at least lithium trifluoromethanesulfonate as a solute constituting the non-aqueous electrolyte, and at least ethylene carbonate-1 and 1,2 dimethoxyethane as a solvent, and has excellent low-temperature discharge characteristics. The object is to provide a non-aqueous electrolyte battery.
ホ、 作用
溶質にトリフルオロメタンスルホン酸リチウム、溶媒に
エチレンカーボネートと１，２ジメトキンエタンを用い
ると、低温時においても溶媒に対する溶質の溶解度の低
下が抑えられ低温特性の改善が計れる。E. When lithium trifluoromethanesulfonate is used as the working solute and ethylene carbonate and 1,2 dimethyneethane are used as the solvent, the decrease in solubility of the solute in the solvent can be suppressed even at low temperatures, and the low-temperature properties can be improved.
へ 実ｗＩ例
エチレンカーボネート（ＥＣ）と１，２ジメトキシエタ
ン＜１．２ ＤＭＥ）との等体積混合溶媒に、溶質とし
てのトリフルオロメタンスルホン酸リチウム（ＬｉＣＦ
３ＳＯ３〉を１モル／Ｐ溶解したものを電解液とする。Practical Example Lithium trifluoromethanesulfonate (LiCF) as a solute was added to an equal volume mixed solvent of ethylene carbonate (EC) and 1,2 dimethoxyethane (<1.2 DME).
3SO3> dissolved in 1 mol/P is used as an electrolytic solution.
正極は３６０〜４３０℃の温度で熱処理した二酸化マン
ガン活物質８５重量％に、導電剤としてのカーボン粉末
１０重量％及び結着剤としてのフッ素樹脂粉末５重量％
を加え混合した後、この混合物を加圧成形し２５０〜３
５０℃の温度で熱処理したものを用いた。又、負極はリ
チウム圧延板を所定寸法に打抜いたものを用いて径２０
．０ｍｍ 、厚み０．２５＋１１１１１、電池容量１３
０ｍＡ Ｈの本発明電池（Ａ）を作成した。The positive electrode contains 85% by weight of a manganese dioxide active material heat-treated at a temperature of 360 to 430°C, 10% by weight of carbon powder as a conductive agent, and 5% by weight of fluororesin powder as a binder.
After adding and mixing, this mixture was pressure-molded to 250-3
The material heat-treated at a temperature of 50° C. was used. In addition, the negative electrode was made by punching out a lithium rolled plate to a specified size, with a diameter of 20 mm.
．． 0mm, thickness 0.25+11111, battery capacity 13
A 0 mA H battery (A) of the present invention was prepared.
次に本発明電池の優位性を調べるために、電解液組成の
み異なる比較電池（Ｂｌ）（Ｂ２）を作成した。比較電
池（Ｂ１）はプロピレンカーボネート（ＰＣ）と１，２
ＤＭＥとの等体積混合溶媒に、溶質としてＬｉＣｊ２０
ａを１モル／！溶解したものを電解液とし、又比較電池
（Ｂ２）はＰＣと１．２ＤＭＥとの等体積混合溶媒に、
溶質とし、てＬｉＣＦ３ ＳＯａを１モル／Ｐ溶解した
ものを電解液とした。Next, in order to investigate the superiority of the battery of the present invention, a comparative battery (B1) (B2) was created, which differed only in the electrolyte composition. Comparative battery (B1) is propylene carbonate (PC) and 1,2
LiCj20 as a solute in an equal volume mixed solvent with DME
1 mole of a/! The dissolved material was used as an electrolyte, and the comparative battery (B2) was prepared using an equal volume mixed solvent of PC and 1.2DME.
An electrolytic solution was prepared by dissolving 1 mol/P of LiCF3SOa as a solute.
第１図はこれらの電池を一２０℃において３にΩの定抵
抗で放電した時の放電特性図であり、第１図より本発明
電池（Ａ）は比較電池（Ｂｌ）（Ｂ２）に比して低温放
電特性が改善され−〔いるのがわかる。Figure 1 is a discharge characteristic diagram when these batteries were discharged at -20°C with a constant resistance of 3 Ω. Figure 1 shows that the battery of the present invention (A) was superior to the comparative batteries (Bl) and (B2). It can be seen that the low temperature discharge characteristics are improved.
又、下表はこれらの電池を放電した後、電池を分解して
リチウム負極表面を肉眼観察した結果を示す。The table below shows the results of disassembling these batteries and visually observing the surface of the lithium negative electrode after discharging the batteries.
＝４−
第２図はＥＣと１．２ＤＭＥの各種比率の混合溶媒にＬ
ｉＣＦ３ＳＯ３を１モル／ρ溶解した電解液組成と電池
放電容量との関係を示し、第２図よりＥＣと１．２ＤＭ
Ｅとの混合比率は１：９〜７：３の範囲が好ましいこと
がわかる。尚、ＬＩＣＦａ ＳＯ３の量は０．５モル／
り〜２．０モル／Ｐの範囲においてほとんど差異は認め
られなかった。=4- Figure 2 shows L in mixed solvents of various ratios of EC and 1.2DME.
The relationship between the electrolytic solution composition in which 1 mol/ρ of iCF3SO3 is dissolved and the battery discharge capacity is shown, and from Figure 2, EC and 1.2DM
It can be seen that the mixing ratio with E is preferably in the range of 1:9 to 7:3. In addition, the amount of LICFa SO3 is 0.5 mol/
Almost no difference was observed in the range of 2.0 mol/P to 2.0 mol/P.
−５＝
ト、 発明の効果
上述した如く、非水電解液を構成する各種溶質及び溶媒
において、特に溶質としてトリフルオロメタンスルホン
酸リチウム、溶媒としてエチレンカーボネートと１，２
ジメトキシエタンとを用いることにより低温放電特性に
優れた非水電解液電池を得ることができるものであり、
この種電池の用途拡大に資するところ極めて犬である。-5 = Effects of the invention As mentioned above, among the various solutes and solvents that constitute the non-aqueous electrolyte, especially lithium trifluoromethanesulfonate as the solute and ethylene carbonate and 1,2 as the solvent.
By using dimethoxyethane, a non-aqueous electrolyte battery with excellent low-temperature discharge characteristics can be obtained.
This is extremely helpful in expanding the uses of this type of battery.
第１図は電池の低温放電特性図、第２図はＥＣと１，２
ＤＭＥの混合比率と電池の放電容量との関係を示す図で
ある。
（Ａ）・・・本発明電池、（Ｂｌ）（Ｂ２）・・・比較
電池。Figure 1 is a low-temperature discharge characteristic diagram of the battery, Figure 2 is EC and 1,2
It is a figure showing the relationship between the mixing ratio of DME and the discharge capacity of a battery. (A)...Battery of the present invention, (Bl) (B2)...Comparison battery.
Claims (1)
極と、正極と、溶質と溶媒とからなる非水電解液とを備
えるものにおいて、前記溶質は少くともトリフルオロメ
タンスルホン酸リチウムを含み、且前記溶媒は少くとも
エチレンカーボネートと１、２ジメトキシエタンとを含
むことを特徴とする非水電解液電池。1 A device comprising a negative electrode having lithium or an alloy containing lithium as an active material, a positive electrode, and a non-aqueous electrolyte comprising a solute and a solvent, wherein the solute contains at least lithium trifluoromethanesulfonate, and the solvent A nonaqueous electrolyte battery comprising at least ethylene carbonate and 1,2 dimethoxyethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31334486A JPS63168969A (en) | 1986-12-27 | 1986-12-27 | Nonaqueous electrolyte cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31334486A JPS63168969A (en) | 1986-12-27 | 1986-12-27 | Nonaqueous electrolyte cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63168969A true JPS63168969A (en) | 1988-07-12 |
Family
ID=18040118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31334486A Pending JPS63168969A (en) | 1986-12-27 | 1986-12-27 | Nonaqueous electrolyte cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63168969A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912570A (en) * | 1977-01-19 | 1984-01-23 | サフト・ソシエテ・デ・ザキユミユラツ−ル・フイクス・エ・ド・トラクシオン | High energy primary battery |
| JPS5996666A (en) * | 1982-11-25 | 1984-06-04 | Nippon Telegr & Teleph Corp <Ntt> | Electrolyte for lithium battery |
| JPS59134568A (en) * | 1983-01-24 | 1984-08-02 | Nippon Telegr & Teleph Corp <Ntt> | Electrolyte for lithium battery |
-
1986
- 1986-12-27 JP JP31334486A patent/JPS63168969A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912570A (en) * | 1977-01-19 | 1984-01-23 | サフト・ソシエテ・デ・ザキユミユラツ−ル・フイクス・エ・ド・トラクシオン | High energy primary battery |
| JPS5996666A (en) * | 1982-11-25 | 1984-06-04 | Nippon Telegr & Teleph Corp <Ntt> | Electrolyte for lithium battery |
| JPS59134568A (en) * | 1983-01-24 | 1984-08-02 | Nippon Telegr & Teleph Corp <Ntt> | Electrolyte for lithium battery |
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