JPH1064584A - Nonaqueous electrolyte for lithium secondary battery - Google Patents
Nonaqueous electrolyte for lithium secondary batteryInfo
- Publication number
- JPH1064584A JPH1064584A JP8213445A JP21344596A JPH1064584A JP H1064584 A JPH1064584 A JP H1064584A JP 8213445 A JP8213445 A JP 8213445A JP 21344596 A JP21344596 A JP 21344596A JP H1064584 A JPH1064584 A JP H1064584A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- charge
- secondary battery
- lithium secondary
- discharge
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、リチウム二次電池
用非水電解液に関するものである。近年、リチウムを負
極とした一次電池は高電圧（３〜４Ｖ）と高エネルギー
密度という点で注目され、実用化されている。しかしな
がら、今後はパーソナルコンピュータ、ワードプロセッ
サや携帯電話等のポータブル化を促進させるためには、
性能の良いリチウム電池の二次電池が要望されており、
特にリチウム電池の充放電効率及び充放電サイクル寿命
等の充放電特性を良好にする非水電解液の開発が期待さ
れている。TECHNICAL FIELD The present invention relates to a non-aqueous electrolyte for a lithium secondary battery. In recent years, primary batteries using lithium as a negative electrode have been attracting attention for their high voltage (3 to 4 V) and high energy density, and have been put to practical use. However, in order to promote personal computers, word processors and mobile phones in the future,
There is a demand for a rechargeable lithium battery with good performance.
In particular, development of a non-aqueous electrolyte solution that improves charge / discharge characteristics such as charge / discharge efficiency and charge / discharge cycle life of a lithium battery is expected.
【０００２】[0002]
【従来の技術】従来のリチウム金属を負極としたリチウ
ム二次電池は、繰り返し充放電を行うとリチウム負極が
電解液と反応を起こす等の理由で充放電の繰り返し回数
の増加に伴って劣化していき、充放電効率が悪くなると
いう欠点があった。2. Description of the Related Art A conventional lithium secondary battery using a lithium metal as a negative electrode deteriorates with an increase in the number of repetitions of the charge and discharge due to the fact that the lithium negative electrode reacts with an electrolytic solution when repeatedly charged and discharged. This has the disadvantage that the charging and discharging efficiency deteriorates.
【０００３】そのような欠点を解消するためには、充放
電効率及び充放電サイクルの長寿命化等の充放電特性の
良好な電解液が求められており、リチウム負極の充放電
効率を向上させるために特開昭５８−１０６７７号にリ
チウム二次電池用非水電解液として、LiCiO4等のリチウ
ム塩をプロピレンカーボネートとＮ，Ｎ−ジメチルアセ
トアミドとの混合溶媒に溶解させた有機溶媒を用いるこ
とが提案されている。In order to solve such disadvantages, there is a demand for an electrolyte having good charge / discharge characteristics such as a long charge / discharge efficiency and a long charge / discharge cycle. For this reason, an organic solvent in which a lithium salt such as LiCiO 4 is dissolved in a mixed solvent of propylene carbonate and N, N-dimethylacetamide is used in JP-A-58-10677 as a non-aqueous electrolyte for a lithium secondary battery. Has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】ところが上記した有機
溶媒中のプロピレンカーボネートは粘度が２．５３cp程
度と比較的高く、単独で電解液の溶媒として使用するこ
とは溶媒中でのLiイオンの移動性が悪く、導電率が低下
する等の問題があった。However, propylene carbonate in the above-mentioned organic solvent has a relatively high viscosity of about 2.53 cp, and it is difficult to use the propylene carbonate alone as a solvent for the electrolytic solution because of the mobility of Li ions in the solvent. And there were problems such as a decrease in conductivity.
【０００５】本発明は上記した従来の問題点に鑑み、高
電圧及び高エネルギー密度を保持しつつ、リチウム負極
の充放電効率の向上を図ったリチウム二次電池用非水電
解液を提供することを目的とするものである。The present invention has been made in view of the above-mentioned conventional problems, and provides a non-aqueous electrolyte for a lithium secondary battery in which the charge and discharge efficiency of a lithium anode is improved while maintaining a high voltage and a high energy density. It is intended for.
【０００６】[0006]
【課題を解決するための手段】本発明は上記した目的を
達成するため、少なくとも１種類の炭酸エステル系高誘
電率溶媒と、少なくとも１種類の炭酸エステル系低粘度
溶媒とを混合した有機溶媒にリチウム塩を溶解させた非
水電解液中に、モノカルボン酸アミド類の内のアセトア
ミド、またはアセトアミド誘導体が添加剤として添加さ
れていることを特徴としている。In order to achieve the above object, the present invention provides an organic solvent obtained by mixing at least one type of carbonate-based high dielectric constant solvent and at least one type of carbonate-based low viscosity solvent. The non-aqueous electrolyte in which the lithium salt is dissolved is characterized in that acetamido or acetamido derivative among monocarboxylic amides is added as an additive.
【０００７】このように前記有機溶媒にリチウム塩を溶
解させた非水電解液中に、アセトアミド、またはアセト
アミド誘導体が添加剤として添加されていることを特徴
とする非水電解液をリチウム二次電池の電解液とするこ
とにより、リチウム負極の表面に添加剤が吸着、或いは
化学的に反応して極めて希薄な皮膜が形成されて、電解
液の構成物質とリチウム負極との間の化学反応に何等か
の影響を与えるためか、または電気化学的な反応が微妙
に変化してリチウム金属の析出形態を変化させて、デン
ドライト（樹枝状のリチウム析出）の発生の防止や均質
な析出や溶解が生じるためであろうと考察されることか
ら、充放電可能なサイクル数を増大させ、リチウム負極
の充放電特性を著しく向上させることができる。従っ
て、その結果として充放電サイクルが長寿命で充放電効
率の良好なリチウム二次電池を実現することが可能とな
る。[0007] A non-aqueous electrolyte solution comprising a non-aqueous electrolyte solution obtained by dissolving a lithium salt in the organic solvent and an acetamide or an acetamide derivative added thereto as an additive. When the electrolyte is used, the additive is adsorbed or chemically reacted on the surface of the lithium anode to form a very thin film, and the chemical reaction between the constituent materials of the electrolyte and the lithium anode is not affected. To prevent the occurrence of dendrite (dendritic lithium deposition) and uniform precipitation and dissolution, due to the influence of the above or by a subtle change in the electrochemical reaction that changes the form of lithium metal deposition Since it is considered that this is because of this, the number of chargeable / dischargeable cycles can be increased, and the charge / discharge characteristics of the lithium anode can be significantly improved. Therefore, as a result, a lithium secondary battery having a long charge / discharge cycle life and good charge / discharge efficiency can be realized.
【０００８】[0008]
【発明の実施の形態】以下図面を用いて本発明の一実施
例について詳細に説明する。本実施例では、例えば６弗
化リン酸リチウム(LiPF6) からなるリチウム塩の溶質
を、エチレンカーボネート(EC)とジエチレンカーボネー
ト(DEC) を１：１の割合で混合した有機溶媒に溶解した
１mol ／ｌのLiPF6 ／EC＋DEC の非水電解液に対して、
添加剤として1.0 wt％のアセトアミドを添加した非水電
解液をリチウム負極を用いた二次電池の非水電解液とす
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. In this embodiment, 1 mol of a solute of a lithium salt composed of, for example, lithium hexafluorophosphate (LiPF 6 ) is dissolved in an organic solvent in which ethylene carbonate (EC) and diethylene carbonate (DEC) are mixed at a ratio of 1: 1. / L of LiPF 6 / EC + DEC non-aqueous electrolyte
A non-aqueous electrolyte to which 1.0 wt% of acetamide is added as an additive is used as a non-aqueous electrolyte for a secondary battery using a lithium anode.
【０００９】そうすることにより、リチウム負極の表面
に前記添加剤が吸着、或いは極めて希薄な皮膜が形成さ
れて、電解液の構成物質とリチウム負極との間の電気化
学的な反応が微妙に変化してリチウム金属の析出・溶解
の形態を変化させて樹枝状のリチウム析出の発生の防止
や均質な析出や溶解が生じるためであろうと考察される
ことから、充放電可能なサイクル数が当該添加剤を添加
しない従来の例と比較して約４倍と著しく増大でき、そ
の結果として充放電サイクルの長寿命化と充放電効率を
飛躍的に高めることが可能となる。By doing so, the additive is adsorbed on the surface of the lithium anode or an extremely thin film is formed, and the electrochemical reaction between the constituent materials of the electrolyte and the lithium anode changes slightly. It is considered that this is because the precipitation and dissolution of lithium metal is changed to prevent the occurrence of dendritic lithium precipitation and to cause uniform precipitation and dissolution. As compared with the conventional example in which the agent is not added, the number can be remarkably increased to about four times, and as a result, the life of the charge / discharge cycle can be prolonged and the charge / discharge efficiency can be dramatically increased.
【００１０】因に、本実施例において前記有機溶剤に、
アセトアミド、Ｎ−メチルアセトアミド、Ｎ，Ｎ−ジメ
チルアセトアミドからなる各添加剤を添加した非水電解
液の各添加剤の添加効果について説明する。In the present embodiment, the organic solvent is
The effect of adding each additive of the non-aqueous electrolyte to which each additive composed of acetamide, N-methylacetamide, and N, N-dimethylacetamide is added will be described.
【００１１】図１は本発明の一実施例の非水電解液を用
いたリチウム二次電池の充放電特性を測定するための３
極式セルを示す概略構成図である。図において、１はセ
ル容器であり、該セル容器１にはエチレンカーボネート
(EC)とジエチレンカーボネート(DEC) を１：１の割合で
混合した有機溶媒に６弗化リン酸リチウム(LiPF6) から
なるリチウム塩の溶質を溶解した１mol ／ｌのLiPF 6 ／
EC＋DEC の標準非水電解液２が入っている。FIG. 1 shows a non-aqueous electrolyte according to one embodiment of the present invention.
3 for measuring the charge / discharge characteristics of the rechargeable lithium secondary battery
It is a schematic block diagram which shows a polar cell. In the figure, 1 is
And a cell container 1 containing ethylene carbonate.
(EC) and diethylene carbonate (DEC) in a 1: 1 ratio
Lithium hexafluorophosphate (LiPF)6) From
1mol / l LiPF dissolved solute of lithium salt 6 /
Contains EC + DEC standard non-aqueous electrolyte 2.
【００１２】また、そのセル容器１には、Li作用極 (負
極）３、Li対極 (正極) ４及びLi参照極５がそれぞれゴ
ム栓７を介して挿入設置されている。更に、Li作用極３
は厚さが７０μｍで１ｃｍ2 の面積のリチウム箔、Li対
極４は厚さが５００μｍで６ｃｍ2 の面積のリチウム箔
であり、Li参照極５はルギン管６で覆われており、これ
らはそれぞれ前記標準非水電解液２中に挿入されて３極
式のセルが構成されている。In the cell container 1, a Li working electrode (negative electrode) 3, a Li counter electrode (positive electrode) 4, and a Li reference electrode 5 are inserted and installed via rubber stoppers 7, respectively. Furthermore, Li working electrode 3
Is a lithium foil having a thickness of 70 μm and an area of 1 cm 2 , a Li counter electrode 4 is a lithium foil having a thickness of 500 μm and an area of 6 cm 2 , and a Li reference electrode 5 is covered with a lugine tube 6. A three-electrode cell is configured by being inserted into the standard non-aqueous electrolyte 2.
【００１３】そして図２に示すように、前記３極式のセ
ル中の標準非水電解液に添加剤を添加しない場合に対
して、該標準非水電解液２に0.1 wt％のアセトアミド
を添加した場合、同様に1.0 wt％のアセトアミドを添
加した場合、同様に0.1 wt％のＮ−メチルアセトアミ
ドを添加した場合、同様に1.0 wt％のＮ−メチルアセ
トアミドを添加した場合、同様に0.5vol％のＮ，Ｎ−
ジメチルアセトアミドを添加した場合、同様に5.0vol
％のＮ，Ｎ−ジメチルアセトアミドを添加した場合につ
いて次に説明するようにそれぞれ充放電実験を行った。As shown in FIG. 2, when the additive is not added to the standard non-aqueous electrolyte in the three-electrode cell, 0.1 wt% of acetamide is added to the standard non-aqueous electrolyte 2. In the same manner, when 1.0 wt% of acetamide is similarly added, similarly, when 0.1 wt% of N-methylacetamide is added, similarly, when 1.0 wt% of N-methylacetamide is added, similarly, 0.5 vol% N, N-
When dimethylacetamide is added, 5.0 vol
%, N / N-dimethylacetamide was added, and charge / discharge experiments were performed as described below.
【００１４】充放電実験の条件としては、Li作用極 (負
極）３とLi対極 (正極) ４との間に定電流電源８により
所定の電圧を印加して、２ｍＡ／ｃｍ2 の電流密度でそ
れぞれ５００秒間ずつ充放電( 充電と放電の間は１０秒
間のインターバルをとって)を行ってLi作用極（負極）
３とLi参照極５との間の電圧をレコーダ９にてモニター
し、その電圧が１Ｖ以上を越えた時点をLi作用極３のリ
チウム箔が前記標準非水電解液２に全て溶出した終点と
し、それまでの充放電回数をその条件における充放電可
能なサイクル回数としてカウントするようにした。The conditions of the charge / discharge experiment are as follows. A predetermined voltage is applied between the Li working electrode (negative electrode) 3 and the Li counter electrode (positive electrode) 4 by the constant current power supply 8 and the current density is 2 mA / cm 2. Charge and discharge for 500 seconds each (10 seconds interval between charge and discharge) and Li working electrode (negative electrode)
The voltage between the Li electrode 3 and the Li reference electrode 5 is monitored by the recorder 9, and the time when the voltage exceeds 1 V is defined as the end point at which the lithium foil of the Li working electrode 3 has completely eluted into the standard nonaqueous electrolyte 2. The number of charging / discharging up to that time is counted as the number of chargeable / dischargeable cycles under the condition.
【００１５】このようにして実施した充放電実験の結果
は図２によって明らかなように、アセトアミド、アセト
アミドの誘導体を添加剤として添加した標準非水電解液
を用いることにより、添加剤を添加しない従来の標準非
水電解液のみを用いた場合よりも充放電可能なサイクル
回数が増大し、充放電特性が著しく向上することが確認
できた。The results of the charge / discharge experiments conducted in this way are clear from FIG. 2, as shown in FIG. 2, where a standard non-aqueous electrolyte containing acetamido or acetamide derivative as an additive was used, and the conventional additive-free electrolyte was used. It was confirmed that the number of charge / discharge cycles increased and the charge / discharge characteristics were significantly improved as compared with the case where only the standard nonaqueous electrolyte was used.
【００１６】また、添加剤の添加量に比例して充放電サ
イクル回数が増加する傾向も示され充放電効率が飛躍的
に向上することが判明した。従って、このようなアセト
アミド、アセトアミドの誘導体を添加剤として添加した
非水電解液をリチウム二次電池に用いることにより、高
電圧及び高エネルギー密度を保持しつつ、充放電効率の
良好な長寿命のリチウム二次電池を実現することができ
る。Also, the number of charge / discharge cycles tends to increase in proportion to the amount of the additive, indicating that the charge / discharge efficiency is dramatically improved. Therefore, by using a non-aqueous electrolyte to which such an acetamide or an acetamide derivative is added as an additive for a lithium secondary battery, it is possible to maintain a high voltage and a high energy density while maintaining good charge / discharge efficiency and a long life. A lithium secondary battery can be realized.
【００１７】なお、上記した実施例においては、リチウ
ム二次電池用の非水電解液に用いる溶質（電解質）であ
るリチウム塩として、LiPF6(６フッ化リン酸リチウム)
を用いた場合の例について説明したが、この例に限定さ
れるものではなく、例えば、LiCL04, LiBF4, LiAsF6, L
iAlCl4, LiCF3SO3, LiSbF6等から選択される少なくとも
一種を用いることができる。In the above-described embodiment, LiPF 6 (lithium hexafluorophosphate) is used as a lithium salt as a solute (electrolyte) used in a nonaqueous electrolyte for a lithium secondary battery.
An example has been described in the case of using, it is not limited to this example, for example, LiCL0 4, LiBF 4, LiAsF 6, L
At least one selected from iAlCl 4 , LiCF 3 SO 3 , LiSbF 6 and the like can be used.
【００１８】また、有機溶媒の炭酸エステル系の高誘電
率溶媒 (比誘電率が３０以上）については、適用してい
るエチレンカーボネートのみに限定されるものではな
く、エチレンカーボネート、プロピレンカーボネート等
から選択される少なくとも一種を用いることができる。Further, the carbonate-based high dielectric constant solvent (relative dielectric constant of 30 or more) of the organic solvent is not limited to ethylene carbonate to which it is applied, but is selected from ethylene carbonate, propylene carbonate and the like. At least one of them can be used.
【００１９】更に、炭酸エステル系の低粘性溶媒（粘度
が０. ８cp以下) についても、適用しているジエチルカ
ーボネートのみに限定されるものではなく、ジエチルカ
ーボネート、ジメチルカーボネート、メチルエチルカー
ボネート等から選択される少なくとも一種を用いること
ができる。Furthermore, the low-viscosity carbonate-based solvent (having a viscosity of 0.8 cp or less) is not limited to the applied diethyl carbonate, but may be selected from diethyl carbonate, dimethyl carbonate, methyl ethyl carbonate and the like. At least one of them can be used.
【００２０】更に、添加剤としてのモノカルボン酸アミ
ド類の内のアセトアミド誘導体は、 の一般式で表される。（式中、Ｒ1,Ｒ2 は同一、または
異なった原子や官能基であり、例えば水素原子、炭素原
子数が１〜３の低級アルキル基、またはフェニル基など
である） そして、上記実施例ではアセトアミドを添加剤として用
いた場合の例について説明したが、この例に限定される
ものではなく、例えば、アセトアミド誘導体としてＮ−
メチルアセトアミド、Ｎ，Ｎ−ジメチルアセトアミド、
Ｎ−エチルアセトアミド、Ｎ，Ｎ−ジエチルアセトアミ
ド、Ｎ−フェニルアセトアミド、Ｎ，Ｎ−ジフェニルア
セトアミド等から選択される少なくとも一種を添加剤と
して用いることができる。Further, the acetamide derivative of the monocarboxylic amides as additives is Is represented by the general formula: (In the formula, R 1 and R 2 are the same or different atoms and functional groups, for example, a hydrogen atom, a lower alkyl group having 1 to 3 carbon atoms, or a phenyl group.) Has described an example in which acetamide is used as an additive. However, the present invention is not limited to this example.
Methylacetamide, N, N-dimethylacetamide,
At least one selected from N-ethylacetamide, N, N-diethylacetamide, N-phenylacetamide, N, N-diphenylacetamide and the like can be used as an additive.
【００２１】[0021]
【発明の効果】以上の説明から明らかなように、本発明
に係るリチウム二次電池用非水電解液によれば、リチウ
ム塩を有機溶媒に溶解した非水電解液に、アセトアミ
ド、またはアセトアミドの誘導体からなる添加剤の適量
を添加することにより、充放電可能なサイクル回数が著
しく増大されて、リチウム負極の充放電特性を向上させ
ることができる。As is apparent from the above description, according to the nonaqueous electrolyte for a lithium secondary battery according to the present invention, acetamido or acetamide is added to a nonaqueous electrolyte in which a lithium salt is dissolved in an organic solvent. By adding an appropriate amount of an additive comprising a derivative, the number of chargeable / dischargeable cycles is significantly increased, and the charge / discharge characteristics of the lithium anode can be improved.
【００２２】従って、本発明の特徴とするアセトアミ
ド、またはアセトアミドの誘導体からなる添加剤を添加
した非水電解液をリチウム負極を用いたリチウム二次電
池の非水電解液として用いることによって、高電圧及び
高エネルギー密度を保持しつつ、充放電効率の良好な長
寿命のリチウム二次電池を容易に実現することが可能と
なる顕著な効果を奏し、実用上極めて有利である。Therefore, by using a non-aqueous electrolyte to which an additive comprising acetamide or an acetamide derivative, which is a feature of the present invention, as a non-aqueous electrolyte for a lithium secondary battery using a lithium negative electrode, high voltage can be obtained. In addition, a remarkable effect of easily realizing a long-life lithium secondary battery having good charge / discharge efficiency while maintaining a high energy density is exhibited, which is extremely advantageous in practical use.
【図１】 本発明の一実施例の非水電解液を用いたリチ
ウム二次電池の充放電特性を測定するための３極式セル
を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing a three-electrode cell for measuring charge / discharge characteristics of a lithium secondary battery using a nonaqueous electrolyte according to one embodiment of the present invention.
【図２】 本発明の添加剤の標準非水電解液への添加量
と充放電可能なサイクル数との関係を示す図である。FIG. 2 is a graph showing the relationship between the amount of the additive of the present invention added to a standard non-aqueous electrolyte and the number of chargeable / dischargeable cycles.
１ セル容器 ２ 標準非水電解液 ３ Li作用極（負極） ４ Li対極 （正極） ５ Li参照極 ６ ルギン管 ７ ゴム栓 ８ 定電流電源 ９ レコーダ DESCRIPTION OF SYMBOLS 1 Cell container 2 Standard nonaqueous electrolyte 3 Li working electrode (negative electrode) 4 Li counter electrode (positive electrode) 5 Li reference electrode 6 Luggin tube 7 Rubber stopper 8 Constant current power supply 9 Recorder
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡辺 勲 神奈川県川崎市中原区上小田中４丁目１番 １号 富士通株式会社内 (72)発明者 吉田 賢介 神奈川県川崎市中原区上小田中４丁目１番 １号 富士通株式会社内 (72)発明者 宮下 勉 神奈川県川崎市中原区上小田中４丁目１番 １号 富士通株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Isao Watanabe 4-1-1, Kamidadanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Prefecture Inside Fujitsu Limited (72) Kensuke Yoshida 4-1-1, Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa No. 1 Fujitsu Limited (72) Inventor Tsutomu Miyashita 4-1-1 Kamikadanaka Nakahara-ku, Kawasaki City, Kanagawa Prefecture Fujitsu Limited
Claims (1)
電率溶媒と、少なくとも１種類の炭酸エステル系低粘度
溶媒とを混合した有機溶媒にリチウム塩を溶解させたリ
チウム二次電池用非水電解液において、 上記非水電解液に添加剤として、アセトアミド、または
アセトアミド誘導体が添加されていることを特徴とする
リチウム二次電池用非水電解液。1. A non-aqueous electrolyte for a lithium secondary battery in which a lithium salt is dissolved in an organic solvent obtained by mixing at least one carbonate-based high-dielectric solvent and at least one carbonate-based low-viscosity solvent. 3. The non-aqueous electrolyte for a lithium secondary battery according to claim 1, wherein acetamide or an acetamide derivative is added as an additive to the non-aqueous electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8213445A JPH1064584A (en) | 1996-08-13 | 1996-08-13 | Nonaqueous electrolyte for lithium secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8213445A JPH1064584A (en) | 1996-08-13 | 1996-08-13 | Nonaqueous electrolyte for lithium secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1064584A true JPH1064584A (en) | 1998-03-06 |
Family
ID=16639352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8213445A Withdrawn JPH1064584A (en) | 1996-08-13 | 1996-08-13 | Nonaqueous electrolyte for lithium secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1064584A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001017904A1 (en) * | 1999-09-03 | 2001-03-15 | Solvay Fluor Und Derivate Gmbh | MIXTURES WITH LiPF¿6? |
| WO2004086551A1 (en) * | 2003-03-25 | 2004-10-07 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte for secondary battery and nonaqueous electrolyte secondary battery |
| JP2004296116A (en) * | 2003-03-25 | 2004-10-21 | Mitsubishi Chemicals Corp | Nonaqueous electrolytic solution for secondary battery, and nonaqueous electrolyte secondary battery |
| KR100717162B1 (en) * | 1998-12-19 | 2007-05-10 | 솔베이 플루오르 운트 데리바테 게엠베하 | Electrolytic compositions for lithium batteries, the use thereof and method for enhancing safety of lithium batteries |
| CN1323460C (en) * | 2003-12-11 | 2007-06-27 | 北京理工大学 | A novel composite electrolyte material |
| CN100463287C (en) * | 2006-09-20 | 2009-02-18 | 广州天赐高新材料股份有限公司 | High rate electrolyte for lithium ion battery |
| JP2009512156A (en) * | 2005-10-27 | 2009-03-19 | エルジー・ケム・リミテッド | Secondary battery using eutectic mixture and manufacturing method thereof |
| US8372548B2 (en) | 2008-11-13 | 2013-02-12 | Samsung Sdi Co., Ltd. | Organic electrolytic solution and lithium battery employing the same |
| JP2013235840A (en) * | 2013-07-05 | 2013-11-21 | Ube Ind Ltd | Nonaqueous electrolyte and lithium battery including the same |
| US8945765B2 (en) | 2008-12-08 | 2015-02-03 | Samsung Sdi Co., Ltd. | Secondary lithium battery electrolyte and secondary lithium battery including the same |
| JP2017224646A (en) * | 2016-06-13 | 2017-12-21 | サン電子工業株式会社 | Electrolytic capacitor and electrolytic solution for the same |
| CN117154224A (en) * | 2023-09-15 | 2023-12-01 | 常州千沐新能源有限公司 | Deep eutectic electrolyte additive capable of solubilizing lithium salt, electrolyte and lithium battery |
-
1996
- 1996-08-13 JP JP8213445A patent/JPH1064584A/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717162B1 (en) * | 1998-12-19 | 2007-05-10 | 솔베이 플루오르 운트 데리바테 게엠베하 | Electrolytic compositions for lithium batteries, the use thereof and method for enhancing safety of lithium batteries |
| JP4772963B2 (en) * | 1998-12-19 | 2011-09-14 | ゾルファイ フルーオル ゲゼルシャフト ミット ベシュレンクテル ハフツング | ELECTROLYTE SYSTEM FOR LITHIUM BATTERY, ITS USE, AND METHOD FOR IMPROVING SAFETY OF LITHIUM BATTERY |
| WO2001017904A1 (en) * | 1999-09-03 | 2001-03-15 | Solvay Fluor Und Derivate Gmbh | MIXTURES WITH LiPF¿6? |
| JP4524543B2 (en) * | 2003-03-25 | 2010-08-18 | 三洋電機株式会社 | Non-aqueous electrolyte for secondary battery and non-aqueous electrolyte secondary battery |
| JP2004296116A (en) * | 2003-03-25 | 2004-10-21 | Mitsubishi Chemicals Corp | Nonaqueous electrolytic solution for secondary battery, and nonaqueous electrolyte secondary battery |
| JP2004296104A (en) * | 2003-03-25 | 2004-10-21 | Sanyo Electric Co Ltd | Non-aqueous electrolyte for secondary battery and non-aqueous electrolyte secondary battery |
| WO2004086551A1 (en) * | 2003-03-25 | 2004-10-07 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte for secondary battery and nonaqueous electrolyte secondary battery |
| CN1323460C (en) * | 2003-12-11 | 2007-06-27 | 北京理工大学 | A novel composite electrolyte material |
| JP2009512156A (en) * | 2005-10-27 | 2009-03-19 | エルジー・ケム・リミテッド | Secondary battery using eutectic mixture and manufacturing method thereof |
| US9059477B2 (en) | 2005-10-27 | 2015-06-16 | Lg Chem, Ltd. | Secondary battery comprising eutectic mixture and preparation method thereof |
| CN100463287C (en) * | 2006-09-20 | 2009-02-18 | 广州天赐高新材料股份有限公司 | High rate electrolyte for lithium ion battery |
| US8372548B2 (en) | 2008-11-13 | 2013-02-12 | Samsung Sdi Co., Ltd. | Organic electrolytic solution and lithium battery employing the same |
| US8945765B2 (en) | 2008-12-08 | 2015-02-03 | Samsung Sdi Co., Ltd. | Secondary lithium battery electrolyte and secondary lithium battery including the same |
| JP2013235840A (en) * | 2013-07-05 | 2013-11-21 | Ube Ind Ltd | Nonaqueous electrolyte and lithium battery including the same |
| JP2017224646A (en) * | 2016-06-13 | 2017-12-21 | サン電子工業株式会社 | Electrolytic capacitor and electrolytic solution for the same |
| CN117154224A (en) * | 2023-09-15 | 2023-12-01 | 常州千沐新能源有限公司 | Deep eutectic electrolyte additive capable of solubilizing lithium salt, electrolyte and lithium battery |
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