JP3249305B2 - Non-aqueous electrolyte battery - Google Patents
Non-aqueous electrolyte batteryInfo
- Publication number
- JP3249305B2 JP3249305B2 JP22592394A JP22592394A JP3249305B2 JP 3249305 B2 JP3249305 B2 JP 3249305B2 JP 22592394 A JP22592394 A JP 22592394A JP 22592394 A JP22592394 A JP 22592394A JP 3249305 B2 JP3249305 B2 JP 3249305B2
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- Japan
- Prior art keywords
- aqueous electrolyte
- battery
- carbonate
- lithium
- mol
- 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.)
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Classifications
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- 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
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- Primary Cells (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、非水電解液電池に係わ
り、詳しくは保存特性に優れた非水電解液電池を得るこ
とを目的とした、非水電解液の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-aqueous electrolyte battery, and more particularly to an improvement in a non-aqueous electrolyte solution for obtaining a non-aqueous electrolyte battery having excellent storage characteristics.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】近年、
非水電解液電池が、エネルギー密度が高い、非水電解液
を使用するため水の分解電圧を考慮する必要が無く高電
圧化が可能である、などの利点を有することから、注目
されている。2. Description of the Related Art In recent years,
Non-aqueous electrolyte batteries have attracted attention because of their advantages such as high energy density and the ability to use high voltage without having to consider the decomposition voltage of water because a non-aqueous electrolyte is used. .
【０００３】而して、非水電解液の溶質としては、Ｌｉ
ＰＦ6 （ヘキサフルオロリン酸リチウム）、ＬｉＢＦ4
（テトラフルオロホウ酸リチウム）などが使用されてい
るが、なかでもＬｉＰＦ6 を溶質とする電解液は、イオ
ン伝導度の高いので、汎用されているものの一つであ
る。As a solute of the non-aqueous electrolyte, Li
PF 6 (lithium hexafluorophosphate), LiBF 4
(Lithium tetrafluoroborate) and the like are used. Among them, an electrolytic solution containing LiPF 6 as a solute is one of widely used electrolytes because of its high ionic conductivity.
【０００４】しかしながら、ＬｉＰＦ6 を炭酸エステル
に溶かした非水電解液を使用すると、充電状態で保存し
た場合に、炭酸エステルの分解（自己放電）が起こるた
め、保存中に電池容量が低下するという問題があった。However, when a non-aqueous electrolyte in which LiPF 6 is dissolved in a carbonate ester is used, decomposition of the carbonate ester (self-discharge) occurs when the battery is stored in a charged state, so that the battery capacity is reduced during storage. There was a problem.
【０００５】本発明は、この問題を解決するべくなされ
たものであり、充電状態で保存した場合でも自己放電が
起こりにくい、保存特性に優れた非水電解液電池を提供
することを目的とする。The present invention has been made to solve this problem, and an object of the present invention is to provide a non-aqueous electrolyte battery which is less likely to self-discharge even when stored in a charged state and has excellent storage characteristics. .
【０００６】[0006]
【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電池（以下、「本発明電池」
と称する。）は、正極と、リチウムを活物質とする負極
と、環状炭酸エステル１０〜９０体積％と鎖状炭酸エス
テル９０〜１０体積％とからなる混合溶媒にＬｉＰＦ6
を１モル／リットル溶かしてなる非水電解液と、セパレ
ータとを備える非水電解液電池において、前記非水電解
液が、ＬｉＣＦ3 ＳＯ3 及びＬｉＮ（ＣＦ3 ＳＯ2 ）2
よりなる群から選ばれた少なくとも一種のリチウム塩を
０．１０〜０．３０モル／リットル含有していることを
特徴とする。The nonaqueous electrolyte battery according to the present invention for achieving the above object (hereinafter referred to as "battery of the present invention").
Called. ) Is positive and a negative electrode using lithium as active material, LiPF in a mixed solvent consisting of 10 to 90 vol% cyclic carbonate and 90 to 10 vol% chain carbonate 6
In a non-aqueous electrolyte battery comprising a non-aqueous electrolyte solution obtained by dissolving 1 mol / liter and a separator, wherein the non-aqueous electrolyte solution is LiCF 3 SO 3 and LiN (CF 3 SO 2 ) 2.
Characterized in that it contains at least one lithium salt selected from the group consisting of 0.10 to 0.30 mol / l.
【０００７】本発明における非水電解液は、環状炭酸エ
ステル１０〜９０体積％と鎖状炭酸エステル９０〜１０
体積％とからなる混合溶媒にＬｉＰＦ6 を１モル／リッ
トル溶かしてなるものである。環状炭酸エステルと鎖状
炭酸エステルとの比率が上述の範囲に規制されるのは、
この範囲を外れると溶媒が不安定となるため負極と反応
して分解し、電池の保存特性が悪くなるからである。The non-aqueous electrolyte in the present invention comprises 10 to 90% by volume of cyclic carbonate and 90 to 10% of chain carbonate.
It is obtained by dissolving 1 mol / liter of LiPF 6 in a mixed solvent of% by volume. The ratio of the cyclic carbonate and the chain carbonate is restricted to the above range,
If the ratio is out of this range, the solvent becomes unstable and reacts with the negative electrode to decompose, thereby deteriorating the storage characteristics of the battery.
【０００８】環状炭酸エステルとしては、エチレンカー
ボネート、プロピレンカーボネート、ブチレンカーボネ
ート、ビニレンカーボネートが例示され、また鎖状炭酸
エステルとしては、ジメチルカーボネート、ジエチルカ
ーボネート、エチルメチルカーボネート、メチルプロピ
ルカーボネート、メチルイソプロピルカーボネート、エ
チルプロピルカーボネート、エチルブチルカーボネー
ト、ジプロピルカーボネート、ジプロピルカーボネー
ト、ジブチルカーボネートが例示される。これらの環状
炭酸エステル及び鎖状炭酸エステルは、それぞれ一種単
独を使用してもよく、必要に応じて二種以上を併用して
もよい。Examples of the cyclic carbonate include ethylene carbonate, propylene carbonate, butylene carbonate, and vinylene carbonate. Examples of the chain carbonate include dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, methyl propyl carbonate, methyl isopropyl carbonate, and the like. Ethyl propyl carbonate, ethyl butyl carbonate, dipropyl carbonate, dipropyl carbonate, dibutyl carbonate are exemplified. These cyclic carbonates and chain carbonates may be used alone or in combination of two or more, if necessary.
【０００９】非水電解液のＬｉＣＦ3 ＳＯ3 及びＬｉＮ
（ＣＦ3 ＳＯ2 ）2 よりなる群から選ばれた少なくとも
一種のリチウム塩の含有量は、０．１０〜０．３０モル
／リットルである。同含有量が０．１０モル／リットル
未満の場合は、保存特性が充分に改善されず、また同含
有量が０．３０モル／リットルを越えた場合は、非水電
解液の粘度が高くなり過ぎて電導度が低下し、放電容量
が低下する。LiCF 3 SO 3 and LiN as non-aqueous electrolytes
The content of at least one lithium salt selected from the group consisting of (CF 3 SO 2 ) 2 is 0.10 to 0.30 mol / L. When the content is less than 0.10 mol / l, the storage characteristics are not sufficiently improved, and when the content exceeds 0.30 mol / l, the viscosity of the non-aqueous electrolyte increases. After that, the conductivity decreases and the discharge capacity decreases.
【００１０】本発明における正極活物質は特には限定さ
れない。例えばマンガン、コバルト、ニッケル、バナジ
ウム及びニオブの各金属の酸化物を使用することができ
る。また、これらの金属を２種以上含有する金属複合酸
化物を使用してもよい。[0010] The positive electrode active material in the present invention is not particularly limited. For example, oxides of metals such as manganese, cobalt, nickel, vanadium, and niobium can be used. Further, a metal composite oxide containing two or more of these metals may be used.
【００１１】リチウムを活物質とする負極としては、金
属リチウム又はリチウムイオンを吸蔵及び放出すること
が可能な物質を電極材料とするものが挙げられる。リチ
ウムイオンを吸蔵及び放出することが可能な物質として
は、リチウム−錫合金、リチウム−アルミニウム合金等
のリチウム合金や、コークス、黒鉛等の炭素材料が例示
される。Examples of the negative electrode using lithium as an active material include those using a material capable of inserting and extracting metallic lithium or lithium ions as an electrode material. Examples of the substance capable of inserting and extracting lithium ions include lithium alloys such as a lithium-tin alloy and a lithium-aluminum alloy, and carbon materials such as coke and graphite.
【００１２】[0012]
【作用】本発明電池においては、充電状態で保存した場
合においても、使用せる混合溶媒の分解（自己放電）が
起こりにくい。これは、非水電解液が特定のリチウム塩
を含有しない従来の非水電解液においては、ＬｉＰＦ6
が非水電解液中で解離してＰＦ5 が生成し（反応式：Ｌ
ｉＰＦ6 ⇒Ｌｉ+ ＋ＰＦ6 - ⇒Ｌｉ+ ＋Ｆ- ＋Ｐ
Ｆ5 ）、この生成したＰＦ5 が、炭酸エステル中のＣ−
Ｏ結合を切断し、該炭酸エステルを分解するのに対し
て、上記非水電解液が特定のリチウム塩を含有する本発
明電池においては、リチウム塩から生成したアニオン
（ＣＦ3 ＳＯ3 - など）がＰＦ6 - の分解（ＰＦ6 - ⇒
Ｆ- ＋ＰＦ5 ）を抑制し、非水電解液を安定化するため
と考えられる。In the battery of the present invention, decomposition (self-discharge) of the mixed solvent to be used hardly occurs even when stored in a charged state. This is because in a conventional non-aqueous electrolyte in which the non-aqueous electrolyte does not contain a specific lithium salt, LiPF 6
Is dissociated in the non-aqueous electrolyte to form PF 5 (reaction formula: L
iPF 6 ⇒Li + + PF 6 - ⇒Li + + F - + P
F 5 ), and the produced PF 5 is a C-
Cutting the O bond, with respect to decompose the carbonate ester, the non-aqueous electrolyte solution in the present invention cells containing a specific lithium salt, the anion generated from lithium salt (CF 3 SO 3 -, etc.) There PF 6 - of decomposition (PF 6 - ⇒
It is considered that F − + PF 5 ) is suppressed and the non-aqueous electrolyte is stabilized.
【００１３】[0013]
【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 Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples, and the present invention may be practiced by appropriately changing the gist of the invention. Is possible.
【００１４】（実施例１） 単３型（ＡＡサイズ）の非水系電解液電池（本発明電
池）を作製した。Example 1 AA type (AA size) non-aqueous electrolyte battery (battery of the present invention) was manufactured.
【００１５】〔正極の作製〕 正極活物質としてのＬｉＣｏＯ2 ８５重量部と、導電剤
としての炭素粉末１０重量部と、結着剤とてのフッ素樹
脂粉末（５重量部）の５重量％Ｎ−メチルピロリドン
（ＮＭＰ）溶液とを混合してスラリーを調製し、次いで
このスラリーをアルミニウム箔の両面にドクターブレー
ド法にて塗布し、１００°Ｃで２時間真空乾燥して正極
を作製した。[Preparation of Positive Electrode] 85% by weight of LiCoO 2 as a positive electrode active material, 10% by weight of carbon powder as a conductive agent, and 5% by weight of N of fluororesin powder (5% by weight) as a binder -Methylpyrrolidone (NMP) solution was mixed to prepare a slurry, and then this slurry was applied to both surfaces of an aluminum foil by a doctor blade method, and vacuum-dried at 100 ° C. for 2 hours to produce a positive electrode.
【００１６】〔負極の作製〕 天然黒鉛８５重量部を結着剤としてのフッ素樹脂粉末
（１５重量部）の５重量％ＮＭＰ溶液に分散させてスラ
リーを調製し、次いでこのスラリーを銅箔の片面にドク
ターブレード法にて塗布し、１００°Ｃで２時間真空乾
燥して負極を作製した。[Preparation of Negative Electrode] A slurry is prepared by dispersing 85 parts by weight of natural graphite in a 5% by weight NMP solution of a fluororesin powder (15 parts by weight) as a binder, and then this slurry is coated on one side of a copper foil. Was applied by a doctor blade method and vacuum dried at 100 ° C. for 2 hours to produce a negative electrode.
【００１７】〔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等体
積混合溶媒にＬｉＰＦ6 を１モル／リットル溶かした
後、さらにＬｉＣＦ3 ＳＯ3 （トリフルオロメタンスル
ホン酸リチウム）を添加混合して、ＬｉＣＦ3 ＳＯ3 を
０．２０モル／リットル含有する非水電解液を調製し
た。[Preparation of Electrolyte Solution] LiPF 6 was dissolved at 1 mol / liter in a mixed solvent of equal volume of ethylene carbonate and diethyl carbonate, and then LiCF 3 SO 3 (lithium trifluoromethanesulfonate) was added and mixed. A non-aqueous electrolyte solution containing 0.20 mol / L of LiCF 3 SO 3 was prepared.
【００１８】〔電池の組立〕 以上の正負両極及び電解液を用いて円筒型の本発明電池
Ａ１（直径：１３．８ｍｍ；高さ：４８．９ｍｍ）を組
み立てた。なお、セパレータとしてイオン透過性のポリ
プロピレン製の微多孔膜を用いた。[Assembly of Battery] A cylindrical battery A1 (diameter: 13.8 mm; height: 48.9 mm) was assembled using the positive and negative electrodes and the electrolyte described above. Note that an ion-permeable polypropylene microporous membrane was used as a separator.
【００１９】図１は作製した本発明電池Ａ１を模式的に
示す断面図であり、図示の電池Ａ１は、正極１、負極
２、これら両電極を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。正極１及び負極２は、非水電解液を注入されたセ
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、電池内部で生じた化学エネルギ
ーを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。FIG. 1 is a cross-sectional view schematically showing a battery A1 of the present invention. The battery A1 shown has a positive electrode 1, a negative electrode 2, a separator 3 separating these electrodes, a positive electrode lead 4, and a negative electrode lead 5. , A positive electrode external terminal 6, a negative electrode can 7, and the like. The positive electrode 1 and the negative electrode 2 are housed in a negative electrode can 7 while being spirally wound through a separator 3 into which a non-aqueous electrolyte is injected. The terminal 6 and the negative electrode 2 are connected to a negative electrode can 7 via a negative electrode lead 5, so that chemical energy generated inside the battery can be taken out as electric energy.
【００２０】（実施例２） 非水電解液の調製において、ＬｉＣＦ3 ＳＯ3 に代えて
ＬｉＮ（ＣＦ3 ＳＯ2）2 （トリフルオロメタンスルホ
ンイミドリチウム）を０．２０モル／リットル添加混合
したこと以外は実施例１と同様にして、本発明電池Ａ２
を組み立てた。(Example 2) In preparation of a non-aqueous electrolyte, except that 0.20 mol / liter of LiN (CF 3 SO 2 ) 2 (lithium trifluoromethanesulfonimide) was added instead of LiCF 3 SO 3 and mixed. In the same manner as in Example 1, the battery A2 of the present invention was used.
Was assembled.
【００２１】（比較例） 非水電解液の調製において、ＬｉＣＦ3 ＳＯ3 を添加混
合しなかったこと以外は実施例１と同様にして、比較電
池Ｂを組み立てた。Comparative Example A comparative battery B was assembled in the same manner as in Example 1 except that LiCF 3 SO 3 was not added and mixed in the preparation of the non-aqueous electrolyte.
【００２２】〔各電池の保存特性〕 本発明電池Ａ１、Ａ２及び比較電池Ｂについて自己放電
率を求め、各電池の保存特性を調べた。自己放電率は、
次に示すようにして求めた。[Storage Characteristics of Each Battery] The self-discharge rates of the batteries A1 and A2 of the present invention and the comparative battery B were determined, and the storage characteristics of each battery were examined. The self-discharge rate is
It was determined as follows.
【００２３】（保存しなかった場合の放電容量） 組み立て直後の各電池を、２００ｍＡで４．１Ｖまで充
電した後、２００ｍＡで２．７５Ｖまで放電して、保存
しなかった場合の放電容量を求めた。(Discharge capacity without storage) Each battery immediately after assembly was charged at 200 mA to 4.1 V, then discharged at 200 mA to 2.75 V, and the discharge capacity without storage was determined. Was.
【００２４】（保存した場合の放電容量） 同様に、組み立て直後の各電池を、２００ｍＡで４．１
Ｖまで充電し、６０°Ｃで二ヵ月間保存した後、２００
ｍＡで２．７５Ｖまで放電して、保存後の放電容量を求
めた。(Discharge Capacity When Stored) Similarly, each battery immediately after assembly was subjected to 4.1 mA at 200 mA.
After charging to 60V and storing at 60 ° C for 2 months, 200
The battery was discharged to 2.75 V at mA, and the discharge capacity after storage was determined.
【００２５】６０°Ｃでの二ヵ月間の保存は、室温での
三ヵ年の保存に相当するので、室温での１年当たりの自
己放電率を下式に基づき算出した。各電池の自己放電率
を表１に示す。Since storage for two months at 60 ° C. corresponds to storage for three years at room temperature, the self-discharge rate per year at room temperature was calculated based on the following equation. Table 1 shows the self-discharge rate of each battery.
【００２６】自己放電率（％／年）＝｛（保存しなかっ
た場合の放電容量−保存した場合の放電容量）／保存し
なかった場合の放電容量｝÷３×１００Self-discharge rate (% / year) = ｛(discharge capacity without storage−discharge capacity with storage) / discharge capacity without storage｝ ÷ 3 × 100
【００２７】[0027]
【表１】 [Table 1]
【００２８】表１に示すように、非水電解液が特定のリ
チウム塩を含有する本発明電池Ａ１、Ａ２は、非水電解
液がこれらのリチウム塩を含有しない比較電池Ｂに比べ
て、自己放電率が小さく、保存特性に優れている。As shown in Table 1, the batteries A1 and A2 of the present invention in which the non-aqueous electrolyte contains a specific lithium salt are more self-contained than the comparative battery B in which the non-aqueous electrolyte does not contain these lithium salts. Low discharge rate and excellent storage characteristics.
【００２９】〔リチウム塩の含有量と保存特性の関係〕 各非水電解液の調製において、各リチウム塩（ＬｉＣＦ
3 ＳＯ3 又はＬｉＮ（ＣＦ3 ＳＯ2 ）2 ）の添加量を種
々変えたこと以外は、実施例１、２と同様にして、非水
電解液電池を組み立てた。[Relationship between Lithium Salt Content and Storage Characteristics] In the preparation of each non-aqueous electrolyte, each lithium salt (LiCF
A non-aqueous electrolyte battery was assembled in the same manner as in Examples 1 and 2, except that the amount of 3 SO 3 or LiN (CF 3 SO 2 ) 2 ) was varied.
【００３０】次いで、これらの組み立て直後の各非水電
解液電池を、２００ｍＡで４．１Ｖまで充電し、６０°
Ｃで二ヵ月間保存した後、２００ｍＡで２．７５Ｖまで
放電して、放電容量（保存後の放電容量）を求めた。結
果を図２に示す。Next, each of these non-aqueous electrolyte batteries immediately after assembly was charged to 4.1 V at 200 mA,
After storage at C for two months, the battery was discharged at 200 mA to 2.75 V, and the discharge capacity (discharge capacity after storage) was determined. The results are shown in FIG.
【００３１】図２は、縦軸に保存後の放電容量（ｍＡ
ｈ）を、また横軸に非水電解液の各リチウム塩の含有量
（モル／リットル）をとって示したグラフである。図２
より、、保存特性の良い非水電解液電池を得るために
は、非水電解液に含有させるリチウム塩を、０．１０〜
０．３０モルとする必要があることが分かる。FIG. 2 shows the discharge capacity after storage (mA) on the vertical axis.
h), and the horizontal axis represents the content (mol / liter) of each lithium salt in the non-aqueous electrolyte. FIG.
Therefore, in order to obtain a non-aqueous electrolyte battery having good storage characteristics, the lithium salt to be contained in the non-aqueous electrolyte is 0.10 to 0.10.
It turns out that it is necessary to be 0.30 mol.
【００３２】叙上の実施例では本発明を円筒型の非水電
解液電池に適用する場合を例にして説明したが、電池の
形状に特に制限はなく、本発明は扁平型、角型等、種々
の形状の非水電解液電池に適用し得るものである。In the above embodiment, the case where the present invention is applied to a cylindrical nonaqueous electrolyte battery has been described as an example. However, the shape of the battery is not particularly limited. It can be applied to non-aqueous electrolyte batteries of various shapes.
【００３３】[0033]
【発明の効果】非水電解液が特定のリチウム塩を含有し
ているので、充電状態で保存した場合においても自己放
電しにくく、保存特性に優れる。Since the non-aqueous electrolyte contains a specific lithium salt, self-discharge is less likely to occur even when stored in a charged state, and the storage characteristics are excellent.
【図１】実施例で作製した非水電解液電池（本発明電
池）の断面図である。FIG. 1 is a cross-sectional view of a nonaqueous electrolyte battery (battery of the present invention) manufactured in an example.
【図２】非水電解液のリチウム塩含有量と保存特性の関
係を示すグラフである。FIG. 2 is a graph showing a relationship between a lithium salt content of a non-aqueous electrolyte and storage characteristics.
Ａ１ 非水電解液電池（本発明電池） １ 正極 ２ 負極 ３ セパレータ A1 Non-aqueous electrolyte battery (battery of the present invention) 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 (56)参考文献 特開 平８−7922（ＪＰ，Ａ) 特開 平２−10666（ＪＰ，Ａ) 特開 平４−171674（ＪＰ，Ａ) 特開 平４−162370（ＪＰ，Ａ) 特開 平２−239571（ＪＰ，Ａ) 特開 昭59−35366（ＪＰ，Ａ) 特開 平５−62690（ＪＰ，Ａ) 特開 昭63−241867（ＪＰ，Ａ) 特開 昭59−51471（ＪＰ，Ａ) 特開 平２−56869（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 10/40 H01M 6/16 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshihiko Saito 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A 8-7922 (JP, A) JP-A-2-10666 (JP, A) JP-A-4-171674 (JP, A) JP-A-4-162370 (JP, A) JP-A-2-239571 (JP, A) JP-A-59-35366 (JP) JP-A-5-24690 (JP, A) JP-A-64-241867 (JP, A) JP-A-59-51471 (JP, A) JP-A-2-56869 (JP, A) (58) Field surveyed (Int.Cl. 7 , DB name) H01M 10/40 H01M 6/16
Claims (1)
環状炭酸エステル１０〜９０体積％と鎖状炭酸エステル
９０〜１０体積％とからなる混合溶媒にＬｉＰＦ6 を１
モル／リットル溶かしてなる非水電解液と、セパレータ
とを備える非水電解液電池において、前記非水電解液
が、ＬｉＣＦ3 ＳＯ3 及びＬｉＮ（ＣＦ3 ＳＯ2 ）2 よ
りなる群から選ばれた少なくとも一種のリチウム塩を
０．１０〜０．３０モル／リットル含有していることを
特徴とする非水電解液電池。1. A positive electrode, a negative electrode using lithium as an active material,
LiPF 6 was added to a mixed solvent consisting of 10 to 90% by volume of cyclic carbonate and 90 to 10% by volume of chain carbonate.
In a non-aqueous electrolyte battery including a non-aqueous electrolyte dissolved in mol / liter and a separator, the non-aqueous electrolyte is selected from the group consisting of LiCF 3 SO 3 and LiN (CF 3 SO 2 ) 2 . A nonaqueous electrolyte battery comprising at least one lithium salt in an amount of 0.10 to 0.30 mol / liter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22592394A JP3249305B2 (en) | 1994-08-25 | 1994-08-25 | Non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22592394A JP3249305B2 (en) | 1994-08-25 | 1994-08-25 | Non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0864237A JPH0864237A (en) | 1996-03-08 |
| JP3249305B2 true JP3249305B2 (en) | 2002-01-21 |
Family
ID=16837013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22592394A Expired - Fee Related JP3249305B2 (en) | 1994-08-25 | 1994-08-25 | Non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3249305B2 (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5830600A (en) * | 1996-05-24 | 1998-11-03 | Sri International | Nonflammable/self-extinguishing electrolytes for batteries |
| US6436577B1 (en) | 1997-06-12 | 2002-08-20 | Sanyo Electric Co., Ltd. | Non-aqueous electrolytic secondary cell |
| US6114070A (en) * | 1997-06-19 | 2000-09-05 | Sanyo Electric Co., Ltd. | Lithium secondary battery |
| TW434923B (en) * | 1998-02-20 | 2001-05-16 | Hitachi Ltd | Lithium secondary battery and liquid electrolyte for the battery |
| JP4056123B2 (en) * | 1998-03-30 | 2008-03-05 | 三洋電機株式会社 | Lithium ion battery |
| JP4567822B2 (en) * | 1999-03-24 | 2010-10-20 | 株式会社東芝 | Square non-aqueous electrolyte secondary battery |
| JP3617447B2 (en) | 1999-12-01 | 2005-02-02 | 松下電器産業株式会社 | Lithium secondary battery |
| JP2001307774A (en) * | 2000-04-21 | 2001-11-02 | Japan Storage Battery Co Ltd | Nonaqueous electrolyte secondary battery |
| JP2002033117A (en) * | 2000-07-14 | 2002-01-31 | Matsushita Electric Ind Co Ltd | Nonaqueous electrolyte secondary battery |
| JP5217066B2 (en) * | 2000-12-08 | 2013-06-19 | Ｔｄｋ株式会社 | Lithium secondary battery |
| JP2002270231A (en) * | 2001-03-14 | 2002-09-20 | Sony Corp | Cell |
| JP4863572B2 (en) * | 2001-05-22 | 2012-01-25 | 三井化学株式会社 | Non-aqueous electrolyte and secondary battery using the same |
| US20030113622A1 (en) | 2001-12-14 | 2003-06-19 | Blasi Jane A. | Electrolyte additive for non-aqueous electrochemical cells |
| US20030162099A1 (en) | 2002-02-28 | 2003-08-28 | Bowden William L. | Non-aqueous electrochemical cell |
| EP1598895B1 (en) | 2003-02-27 | 2011-01-19 | Mitsubishi Chemical Corporation | Nonaqueous electrolytic solution and lithium secondary battery |
| US7083878B2 (en) | 2003-02-27 | 2006-08-01 | Mitsubishi Chemical Corporation | Nonaqueous electrolytic solution and lithium secondary battery |
| JP5375816B2 (en) * | 2003-02-27 | 2013-12-25 | 三菱化学株式会社 | Non-aqueous electrolyte and lithium secondary battery |
| JP4963780B2 (en) * | 2003-02-27 | 2012-06-27 | 三菱化学株式会社 | Non-aqueous electrolyte and lithium secondary battery |
| JP4561037B2 (en) * | 2003-03-12 | 2010-10-13 | 三菱化学株式会社 | Non-aqueous electrolyte and non-aqueous electrolyte battery |
| US7285356B2 (en) | 2004-07-23 | 2007-10-23 | The Gillette Company | Non-aqueous electrochemical cells |
| JP4739778B2 (en) | 2005-02-28 | 2011-08-03 | 三洋電機株式会社 | Nonaqueous electrolyte secondary battery |
| JP4794193B2 (en) * | 2005-03-31 | 2011-10-19 | 三洋電機株式会社 | Nonaqueous electrolyte secondary battery |
| US7479348B2 (en) | 2005-04-08 | 2009-01-20 | The Gillette Company | Non-aqueous electrochemical cells |
| JP2007188703A (en) * | 2006-01-12 | 2007-07-26 | Matsushita Electric Ind Co Ltd | Nonaqueous electrolyte secondary battery |
| JP2009110798A (en) * | 2007-10-30 | 2009-05-21 | Sony Corp | Battery |
| JP5516700B2 (en) * | 2012-11-13 | 2014-06-11 | Ｔｄｋ株式会社 | Lithium secondary battery |
-
1994
- 1994-08-25 JP JP22592394A patent/JP3249305B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0864237A (en) | 1996-03-08 |
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