JPH01236585A - Nonaqueous electrolyte secondary battery - Google Patents
Nonaqueous electrolyte secondary batteryInfo
- Publication number
- JPH01236585A JPH01236585A JP63064301A JP6430188A JPH01236585A JP H01236585 A JPH01236585 A JP H01236585A JP 63064301 A JP63064301 A JP 63064301A JP 6430188 A JP6430188 A JP 6430188A JP H01236585 A JPH01236585 A JP H01236585A
- Authority
- JP
- Japan
- Prior art keywords
- solute
- positive electrode
- battery
- manganese oxide
- licf3so3
- 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 14
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 26
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims description 9
- 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 4
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910000733 Li alloy Inorganic materials 0.000 claims description 2
- 239000001989 lithium alloy Substances 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 14
- 239000003792 electrolyte Substances 0.000 abstract description 12
- 239000007774 positive electrode material Substances 0.000 abstract description 7
- 229910000552 LiCF3SO3 Inorganic materials 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 238000007599 discharging Methods 0.000 description 10
- 229910003002 lithium salt Inorganic materials 0.000 description 6
- 159000000002 lithium salts Chemical group 0.000 description 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- -1 trifluoromethanesulfonic acid ion Chemical class 0.000 description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 2
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- KLKFAASOGCDTDT-UHFFFAOYSA-N ethoxymethoxyethane Chemical compound CCOCOCC KLKFAASOGCDTDT-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910001540 lithium hexafluoroarsenate(V) 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
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000007086 side reaction 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は充電可能な活物質を主体とする正極と、リチウ
ム或いはリチウム合金からなる負極と、少くとも一つの
溶媒と少くとも一つの溶質からなる非水電解液とを備え
る非水電解液二次電池に関するものである。[Detailed description of the invention] (a) Industrial application field The present invention comprises a positive electrode mainly composed of a rechargeable active material, a negative electrode composed of lithium or a lithium alloy, at least one solvent and at least one solute. The present invention relates to a non-aqueous electrolyte secondary battery comprising a non-aqueous electrolyte comprising:
（ロ）従来の技術
この種電池は高エネルギー密度を有するため注目されて
おり、活発な研究が行なわれている。その中でも特にマ
ンガン酸化物を正極活物質に用いると、放電電圧が高く
、エネルギーの高密度化が更に計れるという利点がある
。(b) Prior Art This type of battery has attracted attention because of its high energy density, and active research is being carried out. Among these, especially when manganese oxide is used as the positive electrode active material, there are advantages in that the discharge voltage is high and the energy density can be further increased.
（／今 発明が解決しようとする課題面して、この種
電池を実用化する上で最も重要な課題は擾れた充放電効
率或いはサイクル特性を示す電解液組成の探索である。(/Now) In terms of the problems to be solved by the present invention, the most important problem in putting this type of battery into practical use is the search for an electrolyte composition that exhibits poor charge/discharge efficiency or cycle characteristics.
即ち、マンガン酸化物を正極活物質に用いた二次電池に
おいては、正極の電圧が高いため或いはマンガン酸化物
の有する触媒作用を受けるため、特に充電時において正
極表面上で電解液の分解が生じる懸念がある。That is, in a secondary battery using manganese oxide as a positive electrode active material, the electrolyte decomposes on the surface of the positive electrode, especially during charging, due to the high voltage of the positive electrode or due to the catalytic action of manganese oxide. There are concerns.
それにもかかわらず、この種電池の充電時における電解
液の分解を防ぐ手段として有効な方法が見出されていな
いのが実情である。Nevertheless, the reality is that no effective method has been found to prevent the electrolyte from decomposing during charging of this type of battery.
に）課題を解決するための手段
本発明は上記課題を解決するために、特に電解液組成に
ついて探究した結果なされたものであり、その要旨とす
るところはマンガン酸化物を正極活物質とする非水電解
液二次電池において、溶質としてトリフルオロメタンス
ルホン酸リチウム（ＬｉｃＦ３ＳＯａ）を用いることに
ある。B.) Means for Solving the Problems The present invention was made as a result of particularly research into the electrolyte composition in order to solve the above problems, and its gist is to solve the above problems. In an aqueous electrolyte secondary battery, lithium trifluoromethanesulfonate (LicF3SOa) is used as a solute.
尚、ＬｉＣＦａＳＯａの濃度としては０．５へ１゜５モ
ル／ｌの範囲が好ましい。The concentration of LiCFaSOa is preferably in the range of 0.5 to 1.5 mol/l.
（イ）作 用
充電時に正極表面上で生じる電解液の分解は、溶媒の分
解と溶質としてのリチウム塩の分解とが考えられる。い
ずれの分解も電解液に変化をもたらすと共に充放電効率
の低下を招き、更には分解反応により生じる分解生成物
が正極或いは負極表面上に不活性被膜として付着し電池
の充放電反応を阻害するためにサイクル特性が劣化する
ものと思われる。(a) Effect The decomposition of the electrolyte that occurs on the surface of the positive electrode during charging is thought to be due to the decomposition of the solvent and the decomposition of the lithium salt as a solute. Any decomposition causes a change in the electrolyte solution and a decrease in charging/discharging efficiency.Furthermore, decomposition products generated by the decomposition reaction adhere as an inert film on the surface of the positive electrode or negative electrode, inhibiting the charging/discharging reaction of the battery. It is thought that the cycle characteristics will deteriorate.
そこで本発明者等は種々の電解液組成について検討を重
ねた結果、溶質としてのリチウム塩の種類、即ちリチウ
ム塩のアニオン種の種類が電池のサイクル特性に大きく
影響することを見出した。As a result of repeated studies on various electrolyte compositions, the present inventors have found that the type of lithium salt as a solute, that is, the type of anion species of the lithium salt, greatly influences the cycle characteristics of the battery.
そして特に溶質としてＬｉＣＦ３５Ｏａを用いた場合、
電池のサイクル特性が向上するという結果を得るに至っ
た。And especially when LiCF35Oa is used as the solute,
The results showed that the cycle characteristics of the battery were improved.
この理由を考察するに、正極活物質であるマンガン酸化
物は、例えば二酸化マンガンが強力な酸化触媒能を示す
ことが知られているように、−船釣に触媒作用を有して
おり、これと接する電解液はその作用を受は易い状態に
ある。又、マンガン酸化物自体が高い電圧を有するため
に、特に充電時においては正極近傍の電解液は強い酸化
算囲気下に置かれていることになる。従って溶媒分子お
よび溶質のリチウム塩のアニオン種の分解反応性が電解
液の分解性に大きく影響すると考えられる。Considering the reason for this, manganese oxide, which is a positive electrode active material, has a catalytic effect in boat fishing, for example, as manganese dioxide is known to exhibit a strong oxidation catalytic ability. The electrolyte that comes into contact with this is in a state where it is easily affected by the action. Furthermore, since manganese oxide itself has a high voltage, the electrolyte near the positive electrode is placed under a strong oxidizing atmosphere, especially during charging. Therefore, it is considered that the decomposition reactivity of the solvent molecules and the anionic species of the lithium salt of the solute greatly influences the decomposability of the electrolytic solution.
ここで、溶質としてＬｉＣＦａＳＯａを用いた場合、ト
リフルオロメタンスルホン酸イオン（ＣＦ３ＳＯ３）が
マンガン酸化物の触媒作用を受けにくいため、特に充電
時における正極での電解液分解反応性が大きく抑制され
充放電効率或いはサイクル特性が向上するものと考えら
れる。Here, when LiCFaSOa is used as the solute, trifluoromethanesulfonic acid ion (CF3SO3) is not easily susceptible to the catalytic action of manganese oxide, so the electrolyte decomposition reactivity at the positive electrode, especially during charging, is greatly suppressed, resulting in charge and discharge efficiency. Alternatively, it is considered that the cycle characteristics are improved.
又、電解液の分解性にリチウム塩の種類が影響する要因
として考えられるのは、リチウム塩のアニオン種の分解
による分解生成物が副反応的に溶媒分子の分解反応を誘
発する可能性のあることである。この点においてもＣＦ
ａ Ｓｏ ａの分解生成物は不活性なために溶媒分子
の分解反応を引き起こすまでには至らないものと考えら
れる。In addition, one possible factor that influences the type of lithium salt on the decomposability of the electrolyte is that the decomposition products from the decomposition of the anion species of the lithium salt may induce a decomposition reaction of solvent molecules as a side reaction. That's true. In this respect as well, CF
Since the decomposition products of a So a are inert, it is thought that they do not cause a decomposition reaction of solvent molecules.
（へ）実施例 以下本発明の実施例につき詳述する。(f) Example Examples of the present invention will be described in detail below.
実施例１
第１図は扁平型の非水電解液二次電池の半断面図を示し
、（１）はリチウム−アルミニウム合金からなる負極で
あり負極缶（２）の内底面に固着せる負極集電体（３）
に圧着されている。Example 1 Figure 1 shows a half-sectional view of a flat non-aqueous electrolyte secondary battery, in which (1) is a negative electrode made of lithium-aluminum alloy, and a negative electrode assembly fixed to the inner bottom surface of a negative electrode can (2). Electric body (3)
is crimped to.
（４）は正極であって、活物質である二酸化マンガン８
５重量部に、４電剤としてのアセチレンブラック１０重
示部および結着剤としてのフッ素樹脂５重量部を加え、
充分混合した後成型したものであり、正極缶（５）の内
底面に固着せる正極集電体（６）に圧接されている。(4) is the positive electrode and the active material is manganese dioxide 8
To 5 parts by weight, 10 parts by weight of acetylene black as a 4-electrode agent and 5 parts by weight of a fluororesin as a binder were added,
It is molded after thorough mixing, and is pressed into contact with a positive electrode current collector (6) that is fixed to the inner bottom surface of the positive electrode can (5).
（７）はポリプロピレン多孔膜よりなるセパレータ、（
８）は絶縁バッキングである。(7) is a separator made of a porous polypropylene membrane, (
8) is an insulating backing.
そして、非水電解液としてプロピレンカーボネート（Ｐ
Ｃ）と１，２ジメトキシエタン＜ ＤＭＥ）との等体積
混合溶媒に溶質としてトリフルオロメタンスルホン酸リ
チウム（ＬｉＣＦａＳＯａ）を１モル／ｌ溶解させたも
のを用いて本発明電池Ａを作成した。尚、電池寸法は直
径２４．Ｏｆｆ、厚み３．Ｏｎである。Propylene carbonate (P
Battery A of the present invention was prepared using a solution in which 1 mol/l of lithium trifluoromethanesulfonate (LiCFaSOa) was dissolved as a solute in a mixed solvent of equal volume of C) and 1,2 dimethoxyethane < DME). The battery dimensions are 24mm in diameter. Off, thickness 3. It is on.
比較例１
溶質として過塩素酸リチウム（ＬｉＣＩＯ４）を用いる
ことを除いて他は実施例１と同様の比較電池Ｐを作成し
た。Comparative Example 1 A comparative battery P was prepared in the same manner as in Example 1 except that lithium perchlorate (LiCIO4) was used as the solute.
比較例２
溶質として六フッ化砒酸リチウム（ＬｉＡｓＦ６）を用
いることを除いて他は実施例１と同様の比較電池Ｑを作
成した。Comparative Example 2 A comparative battery Q was prepared in the same manner as in Example 1 except for using lithium hexafluoroarsenate (LiAsF6) as the solute.
比較例６
溶質として四フッ化ホウ酸リチウム（ＬｉＢＦ４）を用
いることを除いて他は実施例１と同様の比較電池Ｒを作
成した。Comparative Example 6 A comparative battery R was prepared in the same manner as in Example 1 except that lithium tetrafluoroborate (LiBF4) was used as the solute.
第２図はこれら電池の充放電サイクル特性図を示す。尚
、充放電条件は充放電電流２ｍＡ、充放電時間６時間と
し、放電時間内に電池電圧が１．５■に達したものは電
池寿命とした。FIG. 2 shows the charge/discharge cycle characteristics of these batteries. The charging and discharging conditions were a charging and discharging current of 2 mA and a charging and discharging time of 6 hours, and when the battery voltage reached 1.5 ■ within the discharging time, the battery life was determined.
実施例２
非水電解液としてエチレンカーボネート（ＥＣ）とＤＭ
Ｅとの等体積混合だ蝶に溶質としてＬｉＣＦ ａ ＳＯ
ａを１モル／ｌ溶解したものを用いることを除いて他は
実施例１と同様の本発明電池Ｂを作成した。Example 2 Ethylene carbonate (EC) and DM as non-aqueous electrolyte
LiCF as a solute is mixed in equal volumes with ESO
A battery B of the present invention was prepared in the same manner as in Example 1 except that a solution of 1 mol/l of a was used.
比較例４
溶質としてＬｉＣＩＯ４を用いることを除いて他は実施
例２と同様の比較電池Ｓを作成した。Comparative Example 4 A comparative battery S was prepared in the same manner as in Example 2 except that LiCIO4 was used as the solute.
第３図はこれら電池の充放電サイクル特性図を示し、充
放電条件は第２図の場合と同じである。FIG. 3 shows the charging/discharging cycle characteristics of these batteries, and the charging/discharging conditions are the same as in FIG. 2.
実施例６
非水電解液としてＰＣと２−メチル−テトラヒドロフラ
ン（２Ｍｅ−ＴＨＦ ンとの等体ｌＡ混合溶媒に溶質と
してＬｉＣＦ３ＳＯ３を１モル／ｌ溶解したものを用い
ることを除いて他は実施例１と同様の本発明電池Ｃを作
成した。Example 6 Example 1 except that 1 mol/l of LiCF3SO3 was dissolved as a solute in a mixed solvent of PC and 2-methyl-tetrahydrofuran (2Me-THF) as a non-aqueous electrolyte. A battery C of the present invention similar to the above was prepared.
比較例５
溶質としてＬｉＣＩＯ４を用いることを除いて他は実施
例３と同様の比較電池Ｔを作成した。Comparative Example 5 A comparative battery T was prepared in the same manner as in Example 3 except for using LiCIO4 as the solute.
第４図はこれら電池の充放電サイクル特性図を示し、充
放電条件は第２図の場合と同じである。FIG. 4 shows the charging/discharging cycle characteristics of these batteries, and the charging/discharging conditions are the same as in FIG. 2.
第２図乃至第４図から明らかなように、溶媒が異なって
も溶質としてＬｉＣＦａＳＯａを用いると充放電サイク
ル特性が向上することがわかる。As is clear from FIGS. 2 to 4, it can be seen that the charge-discharge cycle characteristics are improved when LiCFaSOa is used as the solute even when the solvent is different.
第５図および第６図は本発明電池ＡおよびＢの非水電解
液において、Ｌ ｉ ＣＦ ３ ＳＯａの各種濃度とサ
イクル数との関係を示す図である。FIGS. 5 and 6 are diagrams showing the relationship between various concentrations of Li CF 3 SOa and the number of cycles in the non-aqueous electrolytes of Batteries A and B of the present invention.
第５図および第６図より、ＬｉＣＦ３５Ｏａの濃度とし
ては０，５〜１．５モル／ｌの範囲が特に好ましいこと
がわかる。From FIGS. 5 and 6, it can be seen that the concentration of LiCF35Oa is particularly preferably in the range of 0.5 to 1.5 mol/l.
（ト）発明の効果
上述した如く、マンガン酸化物を正極活物質とする非水
電解液二次電池において、非水電解液を構成する溶質と
してトリフルオロメタンスルホン酸リチウム（ＬｉＣＦ
ａＳＯａ ）を用いることにより、この種電池の充放電
サイクル特性を向上しうるものであり、その工業的価値
は極めて大である。(g) Effects of the invention As mentioned above, in a non-aqueous electrolyte secondary battery using manganese oxide as a positive electrode active material, lithium trifluoromethanesulfonate (LiCF) is used as a solute constituting the non-aqueous electrolyte.
By using aSOa ), the charge/discharge cycle characteristics of this type of battery can be improved, and its industrial value is extremely large.
尚、正極活物質のマンガン酸化物としては、各種結晶構
造のマンガン酸化物や、リチウムを含有せるマンガン酸
化物が適用可能である。As the manganese oxide of the positive electrode active material, manganese oxides having various crystal structures and manganese oxides containing lithium can be used.
更に、溶媒としては実施例で示したものに限定されず、
ブチレンカーボネート、１，６−ジオキソラン、エトキ
シメトキシエタンなどの溶媒も使用しうる。Furthermore, the solvent is not limited to those shown in the examples,
Solvents such as butylene carbonate, 1,6-dioxolane, ethoxymethoxyethane and the like may also be used.
第１図は本発明電池の半断面図、第２図乃至第４図は電
池の充放電サイクル特性図、第５図および第６図は本発
明電池ＡおよびＢの非水電解液においてＬｉＣＦ３５Ｏ
ａの各種濃度とサイクル数との関係を示す図である。
（１）・・・負極、（２）・・・負極缶、（４）・・・
正極、（５）・・・正極缶、（Ａ）（Ｂ）（Ｃ）・・・
本発明電池、（Ｐ）（Ｑ）（Ｒ）（Ｓ）（Ｔ）・・・比
較電池。Figure 1 is a half-sectional view of the battery of the present invention, Figures 2 to 4 are charge/discharge cycle characteristics of the battery, and Figures 5 and 6 are LiCF35O in the non-aqueous electrolyte of batteries A and B of the present invention.
FIG. 3 is a diagram showing the relationship between various concentrations of a and the number of cycles. (1)... Negative electrode, (2)... Negative electrode can, (4)...
Positive electrode, (5)... Positive electrode can, (A) (B) (C)...
Invention battery, (P) (Q) (R) (S) (T)... Comparative battery.
Claims (2)
或いはリチウム合金からなる負極と、少くとも一つの溶
媒と少くとも一つの溶質からなる非水電解液とを備える
ものであって、正極活物質としてマンガン酸化物を用い
ると共に溶質としてトリフルオロメタンスルホン酸リチ
ウム（ＬｉＣＦ＿３ＳＯ＿３）を用いることを特徴とす
る非水電解液二次電池。(1) A positive electrode comprising a positive electrode mainly made of a rechargeable active material, a negative electrode made of lithium or a lithium alloy, and a non-aqueous electrolyte made of at least one solvent and at least one solute; A nonaqueous electrolyte secondary battery characterized in that manganese oxide is used as an active material and lithium trifluoromethanesulfonate (LiCF_3SO_3) is used as a solute.
０．５〜１．５モル／ｌであることを特徴とする非水電
解液二次電池。(2) A nonaqueous electrolyte secondary battery characterized in that the concentration of lithium trifluoromethanesulfonate is 0.5 to 1.5 mol/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63064301A JPH01236585A (en) | 1988-03-17 | 1988-03-17 | Nonaqueous electrolyte secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63064301A JPH01236585A (en) | 1988-03-17 | 1988-03-17 | Nonaqueous electrolyte secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01236585A true JPH01236585A (en) | 1989-09-21 |
Family
ID=13254290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63064301A Pending JPH01236585A (en) | 1988-03-17 | 1988-03-17 | Nonaqueous electrolyte secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01236585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008098035A (en) * | 2006-10-13 | 2008-04-24 | Sanyo Electric Co Ltd | Nonaqueous electrolyte secondary battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60109182A (en) * | 1983-11-17 | 1985-06-14 | Sanyo Chem Ind Ltd | Secondary battery |
-
1988
- 1988-03-17 JP JP63064301A patent/JPH01236585A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60109182A (en) * | 1983-11-17 | 1985-06-14 | Sanyo Chem Ind Ltd | Secondary battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008098035A (en) * | 2006-10-13 | 2008-04-24 | Sanyo Electric Co Ltd | Nonaqueous electrolyte secondary battery |
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