JPH01124960A - Nonaqueous electrolyte battery - Google Patents
Nonaqueous electrolyte batteryInfo
- Publication number
- JPH01124960A JPH01124960A JP28270287A JP28270287A JPH01124960A JP H01124960 A JPH01124960 A JP H01124960A JP 28270287 A JP28270287 A JP 28270287A JP 28270287 A JP28270287 A JP 28270287A JP H01124960 A JPH01124960 A JP H01124960A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- lithium
- negative electrode
- nonaqueous electrolyte
- aqueous 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.)
- Granted
Links
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 21
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 26
- 239000011149 active material Substances 0.000 claims description 5
- CMWINYFJZCARON-UHFFFAOYSA-N 6-chloro-2-(4-iodophenyl)imidazo[1,2-b]pyridazine Chemical compound C=1N2N=C(Cl)C=CC2=NC=1C1=CC=C(I)C=C1 CMWINYFJZCARON-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract description 3
- 231100000989 no adverse effect Toxicity 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 abstract description 2
- 229910018628 Al(CF3SO3)3 Inorganic materials 0.000 abstract 1
- 229910001148 Al-Li alloy Inorganic materials 0.000 abstract 1
- 229910000552 LiCF3SO3 Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 159000000013 aluminium salts Chemical class 0.000 abstract 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 abstract 1
- FKOASGGZYSYPBI-UHFFFAOYSA-K bis(trifluoromethylsulfonyloxy)alumanyl trifluoromethanesulfonate Chemical compound [Al+3].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F FKOASGGZYSYPBI-UHFFFAOYSA-K 0.000 abstract 1
- 238000002161 passivation Methods 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 10
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 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
- 239000012046 mixed solvent Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910007857 Li-Al Inorganic materials 0.000 description 1
- 229910008447 Li—Al Inorganic materials 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- ZRGUXTGDSGGHLR-UHFFFAOYSA-K aluminum;triperchlorate Chemical compound [Al+3].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O ZRGUXTGDSGGHLR-UHFFFAOYSA-K 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- OJKANDGLELGDHV-UHFFFAOYSA-N disilver;dioxido(dioxo)chromium Chemical compound [Ag+].[Ag+].[O-][Cr]([O-])(=O)=O OJKANDGLELGDHV-UHFFFAOYSA-N 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- OOYGSFOGFJDDHP-KMCOLRRFSA-N kanamycin A sulfate Chemical group OS(O)(=O)=O.O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](N)[C@H](O)[C@@H](CO)O2)O)[C@H](N)C[C@@H]1N OOYGSFOGFJDDHP-KMCOLRRFSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 102220266754 rs1554946803 Human genes 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
本発明はリチウムを活物質とする負極と、金属の酸化物
、硫化物、ハロゲン化物などを活物質とする正極と、非
水系の電解液とを備え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 provides a negative electrode using lithium as an active material, a positive electrode using a metal oxide, sulfide, halide, etc. as an active material, and a non-aqueous electrolyte. The present invention relates to a non-aqueous electrolyte battery.
口 従来の技術
この種電池は高エネルギー着炭を有し、且自己放電が少
ないという利点を有するため注目されており、事笑、正
極活物質として二酸化マンガン、酸化第二銅、フッ化炭
素或いはクロム酸銀を用いた電池が実用化に至っている
。Conventional technology This type of battery has attracted attention because it has the advantages of high energy carburization and low self-discharge. Batteries using silver chromate have come into practical use.
ところで、近年この種電池は適用範囲の拡大に伴いさら
に高い信頼性が望まれている。例えば、高温高湿の雰囲
気下で長期間保存し念場合、雰囲気中の水分が電池内に
侵入し、活性なリチウムと水分との反応によシ負極表面
に不働態膜が生成して電池内部抵抗が増大する。Incidentally, in recent years, as the range of application of this type of battery has expanded, even higher reliability has been desired. For example, if the battery is stored for a long period of time in a high-temperature, high-humidity atmosphere, moisture in the atmosphere will enter the battery, and the active lithium will react with the moisture to form a passive film on the surface of the negative electrode, causing the inside of the battery. Resistance increases.
このような電池内部抵抗の増大を抑制するために、リチ
ウム負極の表面にリチウム−アルミニウム合金層を設け
ることが有効であると云われている０
その手段の一例として特開昭６１−７４２６４号公報に
開示されているように、金属アルミニウムをリチウム負
極表面に圧着する方法がある。圧着された金属アルミニ
ウムは電解液の存在下でリチウムと反応しリチウム負極
の表面にリチウム−アルミニウム合金層が形成され葛。In order to suppress such an increase in battery internal resistance, it is said that it is effective to provide a lithium-aluminum alloy layer on the surface of the lithium negative electrode. An example of this method is disclosed in Japanese Patent Laid-Open No. 61-74264. There is a method of press-bonding metallic aluminum to the surface of a lithium negative electrode, as disclosed in . The pressed metal aluminum reacts with lithium in the presence of an electrolyte, and a lithium-aluminum alloy layer is formed on the surface of the lithium negative electrode.
しかし、この方法ではアルミホイルを金型で打抜いて使
用するためアルミホイルの材料歩留り−は７０９６程度
であ夛、又打抜き設備等も必要となるものである。However, in this method, the aluminum foil is punched out using a die, so the material yield of the aluminum foil is approximately 7096, and additional punching equipment is required.
他の例として特開昭５９−９６６６７号公報に開示され
ているようにＡｔａｌ！ｓ＠添加した電解液を使用して
リチウム−アルミニウム合金を生成することもできる。As another example, as disclosed in Japanese Patent Application Laid-Open No. 59-96667, Atal! Lithium-aluminum alloys can also be produced using s@-doped electrolytes.
電解液に添加したＡｊＯｌ！５ハＡ ／” トＯＩ！−
Ｋ解１１ｆ、Ｂ。解ｆｉＬ７’？、ＡＩ！”はリチウム
表面で反応し金属Ａ／を生成する。そしてこの生成した
金！ＥＡｔはＬｌ を含む電解液の存在下でリチウム−
アルミニウム合金が生成するＯ
この方法はアルミホイルを打抜く必要がなく、且打抜き
設備も不要であるなど前述の例に比して利点があるもの
の、反面Ａｒａｔｓ生成時の脱水に問題がある。即ち非
水電解液に水分が含まれていると、リチウム表面に不働
態膜が生成するため非水電解液は充分に脱水された材料
で作成しなければならない。AjOl added to the electrolyte! 5haA/”ToOI!-
K solution 11f, B. Solution fiL7'? , AI! ” reacts on the lithium surface to produce metal A/.Then, this produced gold!EAt reacts with lithium in the presence of an electrolyte containing Ll.
Aluminum alloy is produced O Although this method has advantages over the above-mentioned example, such as not needing to punch out aluminum foil and no punching equipment, there is a problem with dehydration when producing Arats. That is, if the non-aqueous electrolyte contains water, a passive film will form on the lithium surface, so the non-aqueous electrolyte must be made of a material that has been sufficiently dehydrated.
そこで、Ａ１０Ｉ！！Ｓｉ真空中で加熱・乾燥すること
が考えられるがＡｌ０１５は昇華性が強いため乾燥の際
、はとんどが蒸発し取扱いが困難であるＯ
又、ｈｌｏｌｊｓを添加するとＬｉｅ／が生成する。こ
のＬｉｄ／は電解液に対して溶解性が悪く、例、ｔばプ
ロピレンカーボネートとジメトキシエタンとの混合溶媒
においては約０．１モル／１以上は溶解せずこれ以上の
濃度では析出する。更に、Ｌｌｏｌの塩素イオンＯｆ
の影響で電池ケースであるステンレスが腐蝕するとい
う問題がある。So, A10I! ! It is possible to heat and dry Si in a vacuum, but since Al015 has a strong sublimation property, most of it evaporates during drying, making it difficult to handle.Also, when hloljs is added, Lie/ is generated. This Lid/ has poor solubility in the electrolytic solution; for example, in a mixed solvent of propylene carbonate and dimethoxyethane, it does not dissolve at a concentration of about 0.1 mol/1 or more, but precipitates at a concentration higher than this. Furthermore, Llol's chlorine ion Of
There is a problem in that the stainless steel that is the battery case corrodes due to the effects of this.
このような間＠を防ぐために、電解液中でａｔを発生し
ないアルミニウム塩、例えば過塩素酸アルミニウムｈｌ
（ＯＪＦＯＡ）ｓｔ−用いることが考えられるが、ｈ
ｌ （Ｏｌｏａ）ｓは危険性が高く、取扱いが困難であ
る。In order to prevent such a period, an aluminum salt that does not generate at in the electrolyte, such as aluminum perchlorate, is used.
(OJFOA) st- can be considered, but h
l (Oloa)s is highly dangerous and difficult to handle.
ハ 発明が解決しようとする問題点
本発明は前述せる従来の問題点に鑑み、取扱いが容易、
電池内に含まれても悪影響がない、さらに溶解度が高い
アルミニウム塩を非水電解液に添加して、リチウム負極
表面にリチウム−アルミニウム合金層を形成せしめ電池
の保存特性の改善を計るものである。C. Problems to be solved by the invention In view of the above-mentioned conventional problems, the present invention is easy to handle,
The purpose is to improve the storage characteristics of batteries by adding highly soluble aluminum salts to the non-aqueous electrolyte, which have no adverse effects even when contained in batteries, to form a lithium-aluminum alloy layer on the surface of the lithium negative electrode. .
二 問題点を解決するための手段
本発明はリチウムを活物質とする負極と、正極と、非水
電解液とを備え、非水電解液にトリフルオロメタンスル
ホン酸アルミニウムを添加したことを特徴とする非水電
解液電池を提案するものである。2. Means for Solving the Problems The present invention is characterized by comprising a negative electrode using lithium as an active material, a positive electrode, and a non-aqueous electrolyte, and aluminum trifluoromethanesulfonate is added to the non-aqueous electrolyte. This project proposes a non-aqueous electrolyte battery.
ホ作 用
トリフルオロメタンスルホン酸アルミニウムＡｊ （Ｏ
Ｆ５８０５）Ｓを電解液に添加すると、０式に基づきＡ
Ｉ！ とＯＦｉ＄８０３ に解離する。Aluminum trifluoromethanesulfonate Aj (O
F5805) When S is added to the electrolyte, A
I! and OFi$803.
Ａｊ （ＣＦＪＳＯｉＳ） ３→ｈｌ＋５ａｖｓｓｏｓ
−・・・■ここで生じたＡｊ は０式に基づきリチ
ウム負極上で金属ＡＩ！ヲ生成する。Aj (CFJSOiS) 3→hl+5avssos
-... ■The Aj generated here is based on the 0 formula and is a metal AI on the lithium negative electrode! Generate wo.
Ａｔ叶＋、５Ｌｉ→Ａｊ−１−３Ｌｉ”
…■そして、生成した金属ＡＩ！は次述の反応で０式
に基づきＬｉ−Ａｌ！合金となる。At Kano+, 5Li→Aj-1-3Li”
...■And the metal AI that was generated! is Li-Al! based on equation 0 in the following reaction. Becomes an alloy.
Ｌｌ → Ｌｉ ＋ ６
ｈｌ＋ＬＬ ＋ｅ−４Ｌ１−Ａｔ
Ｌｉ−１−Ａｊ→Ｌｉ−Ａｊ ・・・■
又、０式と０式から０式に示すようにｉ、、１０Ｆ５Ｓ
０５を生成する。Ll → Li + 6 hl+LL +e-4L1-At Li-1-Aj→Li-Aj ・・・■
Also, as shown in formula 0 and formula 0 to formula 0, i,, 10F5S
Generate 05.
Ａｔ （ＯＦ５８０５）５→Ａｊ ＋３０Ｆ５８０！
Ｓ −・・■１１ ＋３Ｌｉ→Ａ／＋３Ｌ ｉ
・・・■Ａ／ （ＯＦＪ８０５
）５＋５Ｌ１→ｌ＋３Ｉ、ｉｃＦ’５８０３・・・■
Ｌｉ０Ｆ５１３０ｉｓはリチウムを負極活物質とする非
水電解液電池において一般的に用いられている溶質であ
り、電池内に存在しても何ら悪影響を及ぼすものではな
いと共に有機溶媒に対する溶解度が高（、Ｌｉ０ｊのよ
うに析出することはないＯＡ／ （ＯＦ５８０！ｌ）５
は純度が高い状態で得ることは困難であシ、精製の過程
でＬｉｃＰ５Ｓ０３が生じ、最終的にはＡｊ （ＯＦ５
８０５）５とＬｉ０Ｆ３８０５との混合物の形態で得ら
れるが、これらの混合物を添加しても前述したようにリ
チウム負極表面にリチウム−アルミニウム合金層が形成
されると共に、電池特性に悪影響を及ぼすことはない。At (OF5805)5→Aj +30F580!
S -...■11 +3Li→A/+3L i
...■A/ (OFJ805
)5+5L1→l+3I, icF'5803...■ Li0F5130is is a solute commonly used in non-aqueous electrolyte batteries that use lithium as the negative electrode active material, and its presence in the battery does not cause any adverse effects. It has high solubility in organic solvents (OA/(OF580!l)5 which does not precipitate like Li0j).
It is difficult to obtain in a highly pure state, LicP5S03 is generated during the purification process, and finally Aj (OF5
805)5 and Li0F3805, but even if these mixtures are added, a lithium-aluminum alloy layer will be formed on the surface of the lithium negative electrode as described above, and there will be no adverse effect on battery characteristics. do not have.
へ実施例
第１図は本発明の一実施例による扁平型非水電解液電池
の半縦断面図を示し、図中（１）はリチウム板を所定寸
法に打抜いてなる負極であって、負極罐（２）の内底面
に固着せる負極集電体（３）に圧着されているｏ（４）
は正極であって、二酸化マンガン活物質に導電剤として
のグラファイト及び結着剤としてのフッ素樹脂’に９０
：９：１の重量比で混合し加圧成形したものであり、正
極１ｔ（５）の内底面に固着せる正極集電体（６）Ｋ圧
接されているｏ（７）はポリプロピレン不織布からなる
セパレータ、（８）は絶縁バッキングである。Embodiment FIG. 1 shows a half-longitudinal cross-sectional view of a flat non-aqueous electrolyte battery according to an embodiment of the present invention, and in the figure (1) is a negative electrode formed by punching a lithium plate to a predetermined size, o (4) which is crimped to the negative electrode current collector (3) which is fixed to the inner bottom surface of the negative electrode can (2)
is a positive electrode, which contains manganese dioxide active material, graphite as a conductive agent, and fluororesin as a binder.
The positive electrode current collector (6), which is fixed to the inner bottom surface of the positive electrode (5), is pressure-welded to the positive electrode (7), which is made of polypropylene nonwoven fabric. The separator (8) is an insulating backing.
そして、電解液としてはＡ／ （ＯＰｓｓｏｓ）５とＬ
ｉ０ＦｉＳ８０５とをモル比で１：５に混合したものを
真空中で加熱乾燥処理した混合溶質を、プロピレンカー
ボネートとジメトキシエタンとの等体積混合溶媒に溶解
したものを用いた０而して、（９）は前記組成の非水電
解液の使用によりリチウム負極（１）の表面に形成され
たリチウム−アルミニウム合金層である。この本発明電
池を囚とする。The electrolytes are A/(OPssos)5 and L.
A mixed solute obtained by heating and drying a mixture of i0FiS805 at a molar ratio of 1:5 in a vacuum was dissolved in an equal volume mixed solvent of propylene carbonate and dimethoxyethane. ) is a lithium-aluminum alloy layer formed on the surface of the lithium negative electrode (1) by using a non-aqueous electrolyte having the above composition. This invention battery is taken as a prisoner.
次に、非水電解液を構成する溶質としてＬｉ０７５ＳＯ
３を単独で用いることを除いて他は本発明電池と同様の
比較電池０３）を作成した。Next, Li075SO is used as a solute constituting the non-aqueous electrolyte.
Comparative battery 03), which was the same as the battery of the present invention except that battery No. 3 was used alone, was prepared.
第２図は本発明電池図と比較電池い）とを温度８０℃、
湿度９０％の雰囲気下で保存した時の内部抵抗の経時変
化を示す。Figure 2 shows the battery of the present invention and the comparative battery (Fig. 2) at a temperature of 80°C.
It shows the change in internal resistance over time when stored in an atmosphere of 90% humidity.
第２図を参照すると、初期の内部抵抗は本発明電池（６
）で５ｇ、比較電池の）で９９とほとんど差異は認めら
れないが、３０日保存後においては本発明電池図で１１
９、比較電池０３）で１３５９となり本発明電池の有意
性が顕著となる。Referring to FIG. 2, the initial internal resistance of the battery of the present invention (6
) is 5g, and there is almost no difference between the comparison battery's ) and 99, but after 30 days of storage, the battery of the present invention has a weight of 11.
9 and Comparative Battery 03), it was 1359, and the significance of the battery of the present invention was remarkable.
この理由は本発明電池図ではリチウム負極表面にリチウ
ム−アルミニウム合金層が形成されており、そのため水
分が侵入したとしてもリチウム負極表面が不働態化され
ないのに対し、比較電池＠）ではリチウム負極表面にリ
チウム−アルミニウム合金層が形成されていないため水
分と反応してリチウム負極表面に不働態膜が生成するこ
とに起因すると考えられる。The reason for this is that in the battery of the present invention, a lithium-aluminum alloy layer is formed on the surface of the lithium negative electrode, so even if moisture enters the surface of the lithium negative electrode, the surface of the lithium negative electrode is not passivated. This is thought to be due to the fact that a lithium-aluminum alloy layer was not formed on the lithium negative electrode, which reacted with moisture to form a passive film on the surface of the lithium negative electrode.
ト 発明の効果
上述した如く、リチウムを負極活物質とする非水電解液
電池において、非水電解液にトリフルオ（７／タンスル
ホン酸アルミニウムＪｊ（ＯＦ！３０５）墨を添加する
ことにより、電池性能の劣化を来たすことなく、保存特
性、特に高温高湿下における保存特性の改善が計れるも
のであり、との種電池の利用分野の拡大に資するところ
極めて大である。G. Effects of the Invention As mentioned above, in a non-aqueous electrolyte battery using lithium as a negative electrode active material, the battery performance can be improved by adding trifluoro(7/aluminum sulfonate Jj (OF!305)) to the non-aqueous electrolyte. It is possible to improve the storage characteristics, especially the storage characteristics under high temperature and high humidity, without causing deterioration of the battery, and it will greatly contribute to expanding the field of use of seed batteries.
第１図は本発明の一実施例による扁平型非水電解液電池
の半断面図、第２図は高温高湿下における本発明電池と
比較電池の内部抵抗の経時変化を示す図である。
（１）・・・リチウム負極、（２）・・・負極罐、（３
）・・・負極集電体、（４）・・・正極、（５）・・・
正極罐、（６）・・・正極集電体、（７）・・・セパレ
ータ、（８）・・・絶縁バッキング、（９）・・・リチ
ウム−アルミニウム合金層０FIG. 1 is a half-sectional view of a flat non-aqueous electrolyte battery according to an embodiment of the present invention, and FIG. 2 is a diagram showing changes over time in internal resistance of a battery of the present invention and a comparative battery under high temperature and high humidity conditions. (1)...Lithium negative electrode, (2)...Negative electrode can, (3
)... Negative electrode current collector, (4)... Positive electrode, (5)...
Positive electrode can, (6)... Positive electrode current collector, (7)... Separator, (8)... Insulating backing, (9)... Lithium-aluminum alloy layer 0
Claims (1)
電解液とを備え、前記非水電解液にトリフルオロメタン
スルホン酸アルミニウムを添加したことを特徴とする非
水電解液電池。(1) A nonaqueous electrolyte battery comprising a negative electrode containing lithium as an active material, a positive electrode, and a nonaqueous electrolyte, the nonaqueous electrolyte containing aluminum trifluoromethanesulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28270287A JPH0793140B2 (en) | 1987-11-09 | 1987-11-09 | Non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28270287A JPH0793140B2 (en) | 1987-11-09 | 1987-11-09 | Non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01124960A true JPH01124960A (en) | 1989-05-17 |
| JPH0793140B2 JPH0793140B2 (en) | 1995-10-09 |
Family
ID=17655939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28270287A Expired - Fee Related JPH0793140B2 (en) | 1987-11-09 | 1987-11-09 | Non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0793140B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106797021A (en) * | 2014-10-09 | 2017-05-31 | 宝马股份公司 | Additive based on alkali metal, the accumulator for being based especially on lithium |
-
1987
- 1987-11-09 JP JP28270287A patent/JPH0793140B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106797021A (en) * | 2014-10-09 | 2017-05-31 | 宝马股份公司 | Additive based on alkali metal, the accumulator for being based especially on lithium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0793140B2 (en) | 1995-10-09 |
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