JPH08306386A - Manaqueous electrolyte secondary battery - Google Patents

Manaqueous electrolyte secondary battery

Info

Publication number
JPH08306386A
JPH08306386A JP7132724A JP13272495A JPH08306386A JP H08306386 A JPH08306386 A JP H08306386A JP 7132724 A JP7132724 A JP 7132724A JP 13272495 A JP13272495 A JP 13272495A JP H08306386 A JPH08306386 A JP H08306386A
Authority
JP
Japan
Prior art keywords
negative electrode
aqueous electrolyte
secondary 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
Application number
JP7132724A
Other languages
Japanese (ja)
Inventor
Mayumi Uehara
真弓 上原
Mikiya Yamazaki
幹也 山崎
Koji Nishio
晃治 西尾
Toshihiko Saito
俊彦 斎藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP7132724A priority Critical patent/JPH08306386A/en
Publication of JPH08306386A publication Critical patent/JPH08306386A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

PURPOSE: To improve the wettability of a negative electrode for uniforming electrode reaction, and restrict the reduction of a discharge capacity at the time of high-rate discharge by adding a specified quantity of anion activating agent to nonaqueous electrolyte. CONSTITUTION: A positive electrode comprising positive electrode mix of LiC0 O2 and artificial graphite and a negative electrode 2 mainly comprising carbon powder are separated from each other by a fine porous film 3 of propylene. Next, higher fatty acid salt, alkyl sulfate, alkyl sulfonate, or alkyl aryl sulfonate by 0.001-0.005mol/liter is added and injected to specified nonaqueous electrolyte for composing a nonaqueous electrolyte secondary battery. By thus adding a specified quantity of ion activating agent to nonaqueous electrolyte, the wettability of the negative electrode 2 to nonaqueous electrolyte is improved, thereby electrode reaction in the negative electrode can be equally performed, with reduction of a discharge capacity at the time of effective discharge reduced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は炭素負極を備える非水電
解液二次電池に係わり、詳しくは高率放電特性を改善す
ることを目的とした、非水電解液に対する炭素負極の濡
れ性の改良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-aqueous electrolyte secondary battery having a carbon negative electrode, and more specifically, to improve wettability of the carbon negative electrode with respect to the non-aqueous electrolyte for the purpose of improving high rate discharge characteristics. Regarding improvement.

【0002】[0002]

【従来の技術及び発明が解決しようとする課題】近年、
電解液の溶媒に非プロトン性の溶媒を使用することによ
り水素よりも還元力の大きい負極活物質を使用すること
が可能になった二次電池、すなわち非水電解液二次電池
が、従前のアルカリ蓄電池に比べて大きな起電力を有す
ることから注目されている。この非水電解液二次電池の
負極材料として、単位質量及び単位体積あたりの容量
が大きい、金属リチウムなどの溶解・析出型の負極材
料と異なり吸蔵・放出型の負極材料であるので樹枝状の
電析物の成長に起因する内部短絡が起こる虞れが無いな
どの利点を有する、黒鉛、コークス等の炭素材料が提案
されている。
2. Description of the Related Art In recent years,
By using an aprotic solvent as the solvent of the electrolytic solution, it is possible to use a negative electrode active material having a reducing power larger than hydrogen, that is, a non-aqueous electrolytic solution secondary battery, It is attracting attention because it has a large electromotive force as compared with alkaline storage batteries. As a negative electrode material for this non-aqueous electrolyte secondary battery, it has a large capacity per unit mass and unit volume, and is a dendritic type because it is a storage / release type negative electrode material unlike a dissolution / deposition type negative electrode material such as metallic lithium. Carbon materials such as graphite and coke have been proposed, which have advantages such as no possibility of internal short circuit due to growth of electrodeposits.

【0003】しかしながら、炭素材料は非水電解液に対
する濡れ性が良くないために、炭素材料を負極材料とし
て使用した炭素負極を備える非水電解液二次電池には、
高率放電特性が良くないという問題がある。すなわち、
この種の電池には、大電流で放電すると、放電容量が大
幅に低下するという問題がある。
However, since a carbon material does not have good wettability with a non-aqueous electrolyte, a non-aqueous electrolyte secondary battery including a carbon negative electrode using the carbon material as a negative electrode material is
There is a problem that the high rate discharge characteristics are not good. That is,
This type of battery has a problem that the discharge capacity is significantly reduced when discharged with a large current.

【0004】本発明は、この問題を解決するべくなされ
たものであって、その目的とするところは、炭素材料の
非水電解液に対する濡れ性を改善することにより、高率
放電特性に優れた非水電解液二次電池を提供するにあ
る。
The present invention has been made to solve this problem, and its purpose is to improve the wettability of a carbon material with a non-aqueous electrolyte, thereby providing excellent high rate discharge characteristics. A non-aqueous electrolyte secondary battery is provided.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するため
の本発明に係る非水電解液二次電池(本発明電池)は、
正極と、炭素負極と、負極活物質としてのアルカリ金属
を含有する非水電解液とを備える非水電解液二次電池で
あって、前記非水電解液に陰イオン活性剤が0.001
〜0.005モル/リットル添加されてなる。
The non-aqueous electrolyte secondary battery (the battery of the present invention) according to the present invention for achieving the above object is
A non-aqueous electrolyte secondary battery comprising a positive electrode, a carbon negative electrode, and a non-aqueous electrolyte containing an alkali metal as a negative electrode active material, wherein the non-aqueous electrolyte contains 0.001 of an anion activator.
~ 0.005 mol / liter is added.

【0006】炭素材料としては、コークス、黒鉛(天然
黒鉛、人造黒鉛)、有機物焼成体が例示される。容量が
特に大きい点で、格子面(002)面に於けるd値(d
002)が3.35〜3.37Å、且つc軸方向の結晶子
の大きさ(Lc)が400Å以上のものが特に好まし
い。これらの炭素材料は、炭素塊を粉砕して得た粉末を
そのまま使用してもよく、必要に応じてさらに精製処
理、加熱処理(500〜3700°C)、酸処理、アル
カリ処理、膨張化処理などの前処理を施したものを使用
してもよい。
Examples of the carbon material include coke, graphite (natural graphite, artificial graphite), and an organic material fired body. Since the capacity is particularly large, the d value (d
002 ) is 3.35 to 3.37Å, and the crystallite size (Lc) in the c-axis direction is 400 Å or more. For these carbon materials, powder obtained by crushing carbon agglomerates may be used as it is, and if necessary, further purification treatment, heat treatment (500 to 3700 ° C), acid treatment, alkali treatment, expansion treatment You may use the thing which gave the pretreatment.

【0007】非水電解液に添加される陰イオン活性剤と
しては、高級脂肪酸塩、アルキル硫酸塩、アルキルスル
ホン酸塩、アルキルアリールスルホン酸塩が好適なもの
として例示される。
Preferred examples of the anionic activator added to the non-aqueous electrolyte include higher fatty acid salts, alkyl sulfates, alkyl sulfonates, and alkyl aryl sulfonates.

【0008】高級脂肪酸塩としては、ラウリン酸アルカ
リ塩、ミリスチン酸アルカリ塩、パルミチン酸アルカリ
塩、ステアリン酸アルカリ塩、オレイン酸アルカリ塩が
例示される。
Examples of the higher fatty acid salts include lauric acid alkali salt, myristic acid alkali salt, palmitic acid alkali salt, stearic acid alkali salt, and oleic acid alkali salt.

【0009】アルキル硫酸塩としては、炭素数12〜1
8のアルキル硫酸アルカリ塩〔ROSO3 M(R:炭素
数12〜18のアルキル基、M:アルカリ金属元素)〕
が例示される。
The alkyl sulfate has 12 to 1 carbon atoms.
Alkyl sulfate alkali salt of 8 [ROSO 3 M (R: alkyl group having 12 to 18 carbon atoms, M: alkali metal element)]
Is exemplified.

【0010】アルキルスルホン酸塩としては、炭素数1
2〜18のアルキル硫酸アルカリ塩〔RSO3 M(R:
炭素数12〜18のアルキル基、M:アルカリ金属元
素)〕が例示される。
The alkyl sulfonate has 1 carbon atom.
Alkali sulfate alkali salt of 2 to 18 [RSO 3 M (R:
An alkyl group having 12 to 18 carbon atoms, M: an alkali metal element)].

【0011】アルキルアリールスルホン酸塩としては、
炭素数12〜18のアルキルアリールスルホン酸アルカ
リ塩〔R−Ar−SO3 M(R:炭素数12〜18のア
ルキル基、Ar:アリール基、M:アルカリ金属元
素)〕が例示される。
As the alkylaryl sulfonate,
Alkylarylsulfonic acid alkali salt having 12 to 18 carbon atoms [R-Ar-SO 3 M ( R: alkyl group having 12 to 18 carbon atoms, Ar: an aryl group, M: alkali metal element)] is exemplified.

【0012】アルカリ塩の種類は炭素負極に吸蔵される
イオンの種類に応じて選択される。例えば、リチウムを
負極活物質とするリチウム二次電池(非水電解液二次電
池の一種)においては、アルカリ塩としてリチウム塩が
使用される。
The type of alkali salt is selected according to the type of ions stored in the carbon negative electrode. For example, in a lithium secondary battery (a type of non-aqueous electrolyte secondary battery) using lithium as a negative electrode active material, a lithium salt is used as an alkali salt.

【0013】陰イオン活性剤の非水電解液に対する好適
な添加量は、0.001〜0.005モル/リットルで
ある。添加量がこの範囲を逸脱すると、高率放電時の放
電容量の低下を有効に抑制することが困難になる。
A suitable amount of the anionic activator added to the non-aqueous electrolyte is 0.001 to 0.005 mol / liter. If the added amount deviates from this range, it becomes difficult to effectively suppress the decrease in discharge capacity during high rate discharge.

【0014】本発明の特徴は、炭素負極の非水電解液に
対する濡れ性を向上させるために、非水電解液に陰イオ
ン活性剤を所定量添加した点にある。それゆえ、正極材
料、非水電解液などの電池を構成する他の部材について
は、非水電解液二次電池用として従来提案され、或いは
実用されている種々の材料を特に制限なく用いることが
可能である。
A feature of the present invention is that a predetermined amount of an anion activator is added to the non-aqueous electrolyte in order to improve the wettability of the carbon negative electrode with the non-aqueous electrolyte. Therefore, for other members constituting the battery such as the positive electrode material and the non-aqueous electrolyte, various materials conventionally proposed or practically used for the non-aqueous electrolyte secondary battery may be used without particular limitation. It is possible.

【0015】例えば、正極材料(正極活物質)として
は、リチウムイオンを電気化学的に吸蔵及び放出するこ
とができる、LiCoO2 、LiNiO2 、Li2 Co
NiO4 、LiMn2 4 、LiFeO2 などを使用す
ることができる。
For example, as the positive electrode material (positive electrode active material), LiCoO 2 , LiNiO 2 , Li 2 Co capable of electrochemically absorbing and desorbing lithium ions can be used.
NiO 4 , LiMn 2 O 4 , LiFeO 2 or the like can be used.

【0016】また、非水電解液としては、エチレンカー
ボネート、ビニレンカーボネート、プロピレンカーボネ
ートなどの高誘電率溶媒や、これらとジエチルカーボネ
ート、ジメチルカーボネート、1,2−ジメトキシエタ
ン、1,2−ジエトキシエタン、エトキシメトキシエタ
ンなどの低沸点溶媒との混合溶媒に、LiPF6 、Li
ClO4 、LiCF3 SO3 、LiN(CF3 SO2
2 、LiBF4 、LiAsF6 などを0.7〜1.5モ
ル/リットル、好ましくは1モル/リットル程度の割合
で溶かした溶液を使用することができる。
The non-aqueous electrolyte may be a solvent having a high dielectric constant such as ethylene carbonate, vinylene carbonate or propylene carbonate, or diethyl carbonate, dimethyl carbonate, 1,2-dimethoxyethane or 1,2-diethoxyethane. Mixed with a low boiling point solvent such as ethoxymethoxyethane, LiPF 6 , Li
ClO 4 , LiCF 3 SO 3 , LiN (CF 3 SO 2 )
It is possible to use a solution in which 2 , LiBF 4 , LiAsF 6, etc. are dissolved at a ratio of 0.7 to 1.5 mol / liter, preferably about 1 mol / liter.

【0017】[0017]

【作用】非水電解液中の陰イオン活性剤の作用により、
非水電解液に対する負極の濡れ性が向上する。このた
め、負極に於ける電極反応が均一に行われるようにな
り、高率放電時の放電容量の低下が抑制される。
[Operation] By the action of the anionic activator in the non-aqueous electrolyte,
The wettability of the negative electrode with respect to the non-aqueous electrolyte is improved. Therefore, the electrode reaction in the negative electrode is carried out uniformly, and the decrease in discharge capacity during high rate discharge is suppressed.

【0018】[0018]

【実施例】以下、本発明を実施例に基づいてさらに詳細
に説明するが、本発明は下記実施例に何ら限定されるも
のではなく、その要旨を変更しない範囲において適宜変
更して実施することが可能なものである。
EXAMPLES The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited to the following examples, and various modifications may be made without departing from the scope of the invention. Is possible.

【0019】〔正極の作製〕正極活物質としてのLiC
oO2 と、導電剤としての人造黒鉛とを、重量比9:1
で混合して、正極合剤を調製した。また、結着剤として
のポリフッ化ビニリデンをN−メチル−2−ピロリドン
(NMP)に5重量%溶かして結着剤溶液を調製した。
次いで、このようにして調製した正極合剤と結着剤溶液
とを重量比95:5で混練してスラリーを調製し、この
スラリーを正極集電体としてのアルミニウム箔の両面に
ドクターブレード法により塗布し、150°Cで2時間
真空乾燥して、正極を作製した。
[Production of Positive Electrode] LiC as Positive Electrode Active Material
The weight ratio of oO 2 and artificial graphite as a conductive agent is 9: 1.
Were mixed to prepare a positive electrode mixture. Further, polyvinylidene fluoride as a binder was dissolved in N-methyl-2-pyrrolidone (NMP) at 5% by weight to prepare a binder solution.
Then, the positive electrode mixture thus prepared and the binder solution were kneaded at a weight ratio of 95: 5 to prepare a slurry, and this slurry was applied to both sides of an aluminum foil as a positive electrode current collector by a doctor blade method. The positive electrode was manufactured by applying and vacuum drying at 150 ° C. for 2 hours.

【0020】〔負極の作製〕天然黒鉛塊(d002 =3.
35Å;Lc>1000Å)に空気流を噴射して粉砕
(ジェット粉砕)し、負極材料としての炭素粉末を得
た。この炭素粉末と結着剤溶液(正極の作製において使
用したものと同じもの)とを重量比95:5で混練して
スラリーを調製し、このスラリーを負極集電体としての
銅箔の両面にドクターブレード法により塗布し、150
°Cで2時間真空乾燥して、負極を作製した。
[Preparation of Negative Electrode] Natural graphite lump (d 002 = 3.
35 Å; Lc> 1000 Å) was pulverized by jetting an air stream (jet pulverization) to obtain a carbon powder as a negative electrode material. This carbon powder and a binder solution (the same as the one used in the production of the positive electrode) were kneaded at a weight ratio of 95: 5 to prepare a slurry, and this slurry was applied to both surfaces of a copper foil as a negative electrode current collector. Apply by doctor blade method, 150
Vacuum drying was performed at ° C for 2 hours to prepare a negative electrode.

【0021】〔非水電解液の調製〕エチレンカーボネー
トとジエチルカーボネートとの体積比1:1の混合溶媒
に、LiPF6 を1モル/リットル溶かして非水電解液
を調製した。次いで、この非水電解液に表1及び表2に
示す各種の陰イオン活性剤を種々の割合〔無添加、0.
0005モル/リットル(M)、0.0010モル/リ
ットル、0.0050モル/リットル又は0.020モ
ル/リットル〕添加した。
[Preparation of Non-Aqueous Electrolyte] LiPF 6 was dissolved in a mixed solvent of ethylene carbonate and diethyl carbonate at a volume ratio of 1: 1 to prepare a non-aqueous electrolyte. Next, various anionic activators shown in Tables 1 and 2 were added to the non-aqueous electrolyte at various ratios [no addition, 0.
0005 mol / liter (M), 0.0010 mol / liter, 0.0050 mol / liter or 0.020 mol / liter].

【0022】[0022]

【表1】 [Table 1]

【0023】[0023]

【表2】 [Table 2]

【0024】〔電池の組立〕以上の正極と負極と非水電
解液とを用いて円筒型のAAサイズのリチウム二次電池
を組み立てた。なお、セパレータとしては、ポリプロピ
レン製の微多孔膜を使用した。
[Battery Assembly] A cylindrical AA size lithium secondary battery was assembled using the above positive electrode, negative electrode and non-aqueous electrolyte. A polypropylene microporous film was used as the separator.

【0025】図1は、組み立てたリチウム二次電池を模
式的に示す断面図であり、図示のリチウム二次電池A
は、正極1、負極2、これら両電極1,2を互いに離間
するセパレータ3、正極リード4、負極リード5、正極
外部端子6、負極缶7などからなる。
FIG. 1 is a cross-sectional view schematically showing the assembled lithium secondary battery. The lithium secondary battery A shown in FIG.
Is composed of a positive electrode 1, a negative electrode 2, a separator 3 that separates these electrodes 1 and 2 from each other, a positive electrode lead 4, a negative electrode lead 5, a positive electrode external terminal 6, a negative electrode can 7 and the like.

【0026】正極1及び負極2は、非水電解液が注入さ
れたセパレータ3を介して渦巻き状に巻き取られた状態
で負極缶7内に収納されており、正極1は正極リード4
を介して正極外部端子6に、また負極2は負極リード5
を介して負極缶7に接続され、電池Aの内部に生じた化
学エネルギーを両端子から電気エネルギーとして外部へ
取り出し得るようになっている。
The positive electrode 1 and the negative electrode 2 are housed in the negative electrode can 7 in a spirally wound state via the separator 3 into which the nonaqueous electrolytic solution is injected.
To the positive electrode external terminal 6 and the negative electrode 2 to the negative electrode lead 5
It is connected to the negative electrode can 7 via the terminal so that the chemical energy generated inside the battery A can be taken out from both terminals as electric energy to the outside.

【0027】〔放電容量〕各電池を200mAで4.2
Vまで充電した後、200mAで2.5Vまで放電し
て、各電池の放電容量を求めた。また、各電池を200
mAで4.2Vまで充電した後、2Aで2.5Vまで放
電して、各電池の放電容量(高率放電容量)を求めた。
これらの結果を先の表1及び表2に示す。
[Discharge Capacity] Each battery is 4.2 at 200 mA.
After charging to V, the battery was discharged to 2.5 V at 200 mA to obtain the discharge capacity of each battery. In addition, each battery is 200
The battery was charged to 4.2 V at mA and then discharged to 2.5 V at 2 A to determine the discharge capacity (high rate discharge capacity) of each battery.
The results are shown in Tables 1 and 2 above.

【0028】表1及び表2に示すように、200mAで
放電した場合は、本発明電池(非水電解液に陰イオン活
性剤を0.0010〜0.0050モル/リットル添加
した電池)の放電容量と比較電池(非水電解液に陰イオ
ン活性剤を添加しなかった電池及び非水電解液に陰イオ
ン活性剤を0.0005モル/リットル又は0.020
モル/リットル添加した電池)のそれらとの間に特に差
は認められないが、2Aで放電した場合は、本発明電池
の放電容量は比較電池のそれらに比べて格段大きい。こ
のことから、非水電解液に陰イオン活性剤を所定量添加
することにより、高率放電時の放電容量の低下が有効に
抑制されることが分かる。
As shown in Tables 1 and 2, when discharged at 200 mA, discharge of the battery of the present invention (battery obtained by adding 0.0010 to 0.0050 mol / l of an anion activator to the non-aqueous electrolyte). Capacity and comparison battery (0.0005 mol / l or 0.020 mol of anion activator in the non-aqueous electrolyte and batteries in which the anion activator was not added to the non-aqueous electrolyte)
There is no particular difference with those of the battery added with mol / liter), but when discharged at 2 A, the discharge capacity of the battery of the present invention is significantly larger than those of the comparative battery. From this, it is understood that the addition of a predetermined amount of the anionic activator to the non-aqueous electrolyte solution effectively suppresses the decrease in discharge capacity during high rate discharge.

【0029】上記実施例では、本発明を円筒型のリチウ
ム二次電池に適用する場合を例に挙げて説明したが、本
発明は電池形状に特に制限があるわけではなく、扁平
型、角型など、他の種々の形状のリチウム二次電池に適
用し得るものである。
In the above embodiments, the case where the present invention is applied to a cylindrical lithium secondary battery has been described as an example, but the present invention is not particularly limited in battery shape, and may be flat or rectangular. Etc. can be applied to other various types of lithium secondary batteries.

【0030】また、上記実施例では、リチウム二次電池
を具体例に挙げて説明したが、本発明は炭素負極を備え
る種々の非水電解液二次電池に広く適用可能なものであ
る。
Further, in the above-mentioned embodiments, the lithium secondary battery was described as a specific example, but the present invention is widely applicable to various non-aqueous electrolyte secondary batteries having a carbon negative electrode.

【0031】[0031]

【発明の効果】非水電解液に対する負極の濡れ性が良い
ので、本発明電池は高率放電時の放電容量の低下が小さ
い。
Since the wettability of the negative electrode with respect to the non-aqueous electrolyte is good, the battery of the present invention has a small decrease in discharge capacity at high rate discharge.

【図面の簡単な説明】[Brief description of drawings]

【図1】実施例で組み立てた円筒型のリチウム二次電池
の断面図である。
FIG. 1 is a cross-sectional view of a cylindrical lithium secondary battery assembled in an example.

【符号の説明】[Explanation of symbols]

A リチウム二次電池(非水電解液二次電池) 1 正極 2 負極 3 セパレータ A lithium secondary battery (non-aqueous electrolyte secondary battery) 1 positive electrode 2 negative electrode 3 separator

───────────────────────────────────────────────────── フロントページの続き (72)発明者 斎藤 俊彦 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiko Saito 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】正極と、炭素負極と、非水電解液とを備え
る非水電解液二次電池であって、前記非水電解液に陰イ
オン活性剤が0.001〜0.005モル/リットル添
加されていることを特徴とする非水電解液二次電池。
1. A non-aqueous electrolyte secondary battery comprising a positive electrode, a carbon negative electrode, and a non-aqueous electrolyte, wherein the non-aqueous electrolyte contains 0.001 to 0.005 mol / min of an anion activator. A non-aqueous electrolyte secondary battery containing liters.
【請求項2】前記陰イオン活性剤が、高級脂肪酸塩、ア
ルキル硫酸塩、アルキルスルホン酸塩又はアルキルアリ
ールスルホン酸塩である請求項1記載の非水電解液二次
電池。
2. The non-aqueous electrolyte secondary battery according to claim 1, wherein the anionic activator is a higher fatty acid salt, an alkyl sulfate, an alkyl sulfonate, or an alkyl aryl sulfonate.
【請求項3】リチウムを負極活物質とし、且つ前記陰イ
オン活性剤が、ラウリン酸リチウム、ミリスチン酸リチ
ウム、パルミチン酸リチウム、ステアリン酸リチウム、
オレイン酸リチウム、炭素数12〜18のアルキル硫酸
リチウム塩、炭素数12〜18のアルキルスルホン酸リ
チウム塩又はアルキル基の炭素数が12〜18のアルキ
ルアリールスルホン酸リチウム塩である請求項1記載の
非水電解液二次電池。
3. Lithium as a negative electrode active material, and the anion activator is lithium laurate, lithium myristate, lithium palmitate, lithium stearate,
The lithium oleate, a C 12-18 alkylsulfate lithium salt, a C 12-18 alkylsulfonic acid lithium salt, or an alkyl group C 12-18 alkylarylsulfonic acid lithium salt. Non-aqueous electrolyte secondary battery.
JP7132724A 1995-05-02 1995-05-02 Manaqueous electrolyte secondary battery Pending JPH08306386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7132724A JPH08306386A (en) 1995-05-02 1995-05-02 Manaqueous electrolyte secondary battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7132724A JPH08306386A (en) 1995-05-02 1995-05-02 Manaqueous electrolyte secondary battery

Publications (1)

Publication Number Publication Date
JPH08306386A true JPH08306386A (en) 1996-11-22

Family

ID=15088106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7132724A Pending JPH08306386A (en) 1995-05-02 1995-05-02 Manaqueous electrolyte secondary battery

Country Status (1)

Country Link
JP (1) JPH08306386A (en)

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FR2767969A1 (en) * 1997-08-29 1999-03-05 Alsthom Cge Alcatel LITHIUM RECHARGEABLE GENERATOR WITH ORGANIC ELECTROLYTE AND CARBON ANODE
JP2002056891A (en) * 2000-08-09 2002-02-22 Mitsui Chemicals Inc Nonaqueous electrolyte and secondary battery using the same
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US6960410B2 (en) 2001-05-09 2005-11-01 Lg Chem, Ltd. Electrolyte comprising non-ionic surfactant and lithium ion battery using the same
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WO2016009923A1 (en) * 2014-07-16 2016-01-21 ダイキン工業株式会社 Electrolyte solution and method for producing sulfate salt
CN111740163A (en) * 2020-03-23 2020-10-02 杉杉新材料(衢州)有限公司 High-voltage lithium ion battery electrolyte and lithium ion battery using same
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Publication number Priority date Publication date Assignee Title
FR2767969A1 (en) * 1997-08-29 1999-03-05 Alsthom Cge Alcatel LITHIUM RECHARGEABLE GENERATOR WITH ORGANIC ELECTROLYTE AND CARBON ANODE
JP2002056891A (en) * 2000-08-09 2002-02-22 Mitsui Chemicals Inc Nonaqueous electrolyte and secondary battery using the same
JP4726282B2 (en) * 2000-08-09 2011-07-20 三井化学株式会社 Non-aqueous electrolyte and secondary battery using the same
US6960410B2 (en) 2001-05-09 2005-11-01 Lg Chem, Ltd. Electrolyte comprising non-ionic surfactant and lithium ion battery using the same
JP2002343426A (en) * 2001-05-22 2002-11-29 Mitsui Chemicals Inc Nonaqueous electrolyte and secondary battery using the same
US9934911B2 (en) 2013-04-01 2018-04-03 Ube Industries, Ltd. Nonaqueous electrolyte solution and electricity storage device using same
CN105074996A (en) * 2013-04-01 2015-11-18 宇部兴产株式会社 Nonaqueous electrolyte solution and electricity storage device using same
KR20150139847A (en) 2013-04-01 2015-12-14 우베 고산 가부시키가이샤 Nonaqueous electrolyte solution and electricity storage device using same
EP2983233A4 (en) * 2013-04-01 2016-10-12 Ube Industries Nonaqueous electrolyte solution and electricity storage device using same
WO2014163055A1 (en) 2013-04-01 2014-10-09 宇部興産株式会社 Nonaqueous electrolyte solution and electricity storage device using same
KR20160002313A (en) * 2014-06-30 2016-01-07 솔브레인 주식회사 Electrolyte and lithium secondary battery with the same
WO2016009923A1 (en) * 2014-07-16 2016-01-21 ダイキン工業株式会社 Electrolyte solution and method for producing sulfate salt
JPWO2016009923A1 (en) * 2014-07-16 2017-05-25 ダイキン工業株式会社 Electrolytic solution and method for producing sulfate ester salt
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