JP2000323144A - Conductive agent of nonaqueous secondary battery electrode, electrode and nonaqueous secondary battery - Google Patents
Conductive agent of nonaqueous secondary battery electrode, electrode and nonaqueous secondary batteryInfo
- Publication number
- JP2000323144A JP2000323144A JP11132967A JP13296799A JP2000323144A JP 2000323144 A JP2000323144 A JP 2000323144A JP 11132967 A JP11132967 A JP 11132967A JP 13296799 A JP13296799 A JP 13296799A JP 2000323144 A JP2000323144 A JP 2000323144A
- Authority
- JP
- Japan
- Prior art keywords
- boron
- carbon black
- secondary battery
- active material
- electrode
- 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
-
- 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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- Carbon And Carbon Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電解液に非水系電
解液を用い、負極及び正極にリチウムイオンを吸蔵放出
可能な材料を用いた非水系二次電池において、これらの
負極及び／又は正極に導電性を付与するための導電剤
と、それらを用いて構成された電極及び非水系二次電池
に関する。The present invention relates to a non-aqueous secondary battery using a non-aqueous electrolytic solution as an electrolytic solution and a material capable of occluding and releasing lithium ions for a negative electrode and a positive electrode. The present invention relates to a conductive agent for imparting conductivity to an electrode, an electrode and a non-aqueous secondary battery formed using the same.
【０００２】[0002]
【従来の技術】近年、ノートパソコンや携帯電話の普及
に伴い、小型の二次電池に対する需要が高まっている。
正極活物質に複合酸化物、負極活物質に炭素質材料を用
いたリチウムイオン二次電池は、その優れた特性、安全
性により、活発な研究が行われている。2. Description of the Related Art In recent years, with the spread of notebook personal computers and mobile phones, demand for small secondary batteries has been increasing.
Active research has been conducted on lithium ion secondary batteries using a composite oxide as a positive electrode active material and a carbonaceous material as a negative electrode active material due to their excellent characteristics and safety.
【０００３】従来、リチウムイオン二次電池の正極とし
ては、コバルト酸リチウム、マンガン酸リチウム等の複
合酸化物からなる正極活物質とカーボンブラック等の導
電剤とを含有してなる組成物を、アルミニウム箔等の金
属箔からなる集電体に被着させてなるものが用いられて
いる。一方、負極としては、黒鉛等の炭素質材料からな
る負極活物質と、カーボンブラック等の導電剤を銅箔等
の金属箔からなる集電体に被着させてなるものが用いら
れている。Conventionally, as a positive electrode of a lithium ion secondary battery, a composition containing a positive electrode active material comprising a composite oxide such as lithium cobalt oxide and lithium manganate and a conductive agent such as carbon black have been used. What is adhere | attached on the collector made of metal foil, such as foil, is used. On the other hand, as the negative electrode, a negative electrode active material made of a carbonaceous material such as graphite and a conductive material such as carbon black adhered to a current collector made of a metal foil such as a copper foil are used.
【０００４】導電剤の役割は、導電性を有しない活物質
に導電性を付与したり、充放電時に、電極活物質が繰り
返し膨張収縮して導電経路が損なわれるのを防止するこ
とである。従って、従来、導電経路を保持するには、比
較的多量の導電剤を含有させなければならなかったの
で、相対的に活物質の割合が少なくなり、限られた電池
内容積では充放電容量が小さくなるという問題があっ
た。また、活物質量を増やすため、導電剤の添加量を少
なくした場合、少ないサイクル数で放電容量が減少して
しまい、電池のサイクル寿命が短いものであった。The role of the conductive agent is to impart conductivity to an active material having no conductivity, and to prevent the electrode active material from repeatedly expanding and contracting during charge and discharge, thereby preventing a conductive path from being damaged. Therefore, conventionally, in order to maintain the conductive path, a relatively large amount of the conductive agent had to be contained, so that the ratio of the active material was relatively small, and the charge / discharge capacity was limited in the limited battery volume. There was a problem of becoming smaller. In addition, when the amount of the conductive agent was reduced to increase the amount of the active material, the discharge capacity was reduced with a small number of cycles, and the cycle life of the battery was short.
【０００５】本発明は、上記の欠点を解消しようとする
ものであり、充放電容量が大で、寿命の長い非水系二次
電池を提供することを目的とする。An object of the present invention is to provide a non-aqueous secondary battery having a large charge / discharge capacity and a long life.
【０００６】[0006]
【課題を解決するための手段】すなわち、本発明は、ホ
ウ素固溶カーボンブラックからなることを特徴とする非
水系二次電池電極の導電剤である。また、本発明は、負
極活物質又は正極活物質と、上記ホウ素固溶カーボンブ
ラックとを含む組成物を集電体に被着させてなることを
特徴とする非水系二次電池の電極である。更には、負極
及び／又は正極が、上記電極で構成されてなることを特
徴とする非水系二次電池である。That is, the present invention is a conductive agent for an electrode of a non-aqueous secondary battery, comprising a boron-solid-solution carbon black. Further, the present invention is an electrode of a non-aqueous secondary battery, which is obtained by applying a composition containing a negative electrode active material or a positive electrode active material and the boron-solid-solution carbon black to a current collector. . Furthermore, the non-aqueous secondary battery is characterized in that the negative electrode and / or the positive electrode are constituted by the above-mentioned electrodes.
【０００７】[0007]
【発明の実施の形態】以下、本発明について更に詳しく
説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail.
【０００８】本発明で使用されるホウ素固溶カーボンブ
ラック（以下、「ホウ素固溶ＣＢ」という。）は、特願
平１１−８６６６１号明細書に記載したように、炭化水
素の熱分解反応時及び／又は燃焼反応時にホウ素源を存
在させることによって、製造することができる。[0008] As described in Japanese Patent Application No. 11-86661, the boron-dissolved carbon black (hereinafter referred to as "boron-dissolved CB") used in the present invention is used during the thermal decomposition reaction of hydrocarbons. And / or by the presence of a boron source during the combustion reaction.
【０００９】この製造法において、ホウ素源の供給方法
は、炭化水素ガスとあらかじめ混合してもよく、また炭
化水素が熱分解及び／又は燃焼を起こす領域に別ライン
から供給してもよい。炭化水素としては、ガス状、オイ
ル状のいずれでもよいが、中でもアセチレンは 分解時
の発熱が大きく、反応温度が高くなるので好ましい。ま
た、ホウ素源としては、ホウ素、ホウ酸、ホウ酸トリエ
チル、ホウ酸トリメチル、トリエチルボラン、トリブチ
ルボラン、三塩化ホウ素、三弗化ホウ素、ジボラン等が
使用されるが、中でも有機ホウ素化合物は、気化させて
使用することが容易であるので好ましい。In this production method, the supply method of the boron source may be premixed with the hydrocarbon gas, or may be supplied from another line to a region where the hydrocarbon undergoes thermal decomposition and / or combustion. The hydrocarbon may be gaseous or oily. Among them, acetylene is preferred because it generates a large amount of heat upon decomposition and increases the reaction temperature. As the boron source, boron, boric acid, triethyl borate, trimethyl borate, triethyl borane, tributyl borane, boron trichloride, boron trifluoride, diborane, etc. are used. It is preferable because it can be easily used.
【００１０】ホウ素固溶ＣＢのカーボンブラックの種類
については、サーマルブラック、ファーネスブラック、
ランプブラック、チャンネルブラック、ロールブラッ
ク、ディスクブラック、黒鉛化ブラック、アセチレンブ
ラック等のいずれであってもよい。The types of carbon black of boron solid solution CB include thermal black, furnace black,
Any of lamp black, channel black, roll black, disk black, graphitized black, acetylene black and the like may be used.
【００１１】本発明において、カーボンブラックのホウ
素固溶量は、以下に従って測定された全ホウ素量から可
溶ホウ素量を差し引くことによって求めることができ
る。In the present invention, the amount of solid solution of boron in carbon black can be determined by subtracting the amount of soluble boron from the total amount of boron measured as follows.
【００１２】全ホウ素量は、カーボンブラック０．５ｇ
を白金皿に取り、１．５重量％Ｃａ（ＯＨ）2 溶液２０
ｍｌ、アセトン５ｍｌを加え、超音波洗浄器で１時間分
散させる。それをサンドバスで乾固させた後、電気炉を
用い、酸素気流中、８００℃で３時間かけて灰化させ
る。次いで、ＨＣｌ（１＋１）溶液１０ｍｌを加えサン
ドバス中で加熱して溶出させる。溶出液を１００ｍｌに
定容し、ＩＣＰ−ＡＥＳでホウ素量を定量し、カーボン
ブラック中の全ホウ素量とする。The total amount of boron is 0.5 g of carbon black.
Is placed in a platinum dish, and a 1.5% by weight Ca (OH) 2 solution 20
Then, 5 ml of acetone and 5 ml of acetone are added, and the mixture is dispersed with an ultrasonic cleaner for 1 hour. After it was dried in a sand bath, it was ashed at 800 ° C. for 3 hours in an oxygen stream using an electric furnace. Next, 10 ml of an HCl (1 + 1) solution is added, and the mixture is heated and eluted in a sand bath. The volume of the eluate is made constant to 100 ml, the amount of boron is quantified by ICP-AES, and the total amount of boron in carbon black is determined.
【００１３】可溶ホウ素量は、カーボンブラック１ｇを
石英ガラス製三角フラスコに取り、水１００ｍｌとアセ
トン１ｍｌを加える。それをウォーターバス上で２４時
間還留させ、０．８μｍメンブランフィルターで濾過す
る。濾液のホウ素量をＩＣＰ−ＡＥＳで定量し、カーボ
ンブラック中の可溶ホウ素量とする。For the amount of soluble boron, 1 g of carbon black is placed in a quartz glass Erlenmeyer flask, and 100 ml of water and 1 ml of acetone are added. It is distilled on a water bath for 24 hours and filtered through a 0.8 μm membrane filter. The amount of boron in the filtrate is quantified by ICP-AES, and is defined as the amount of soluble boron in carbon black.
【００１４】本発明で使用されるホウ素固溶ＣＢは、そ
のＥＳＲ（電子スピン共鳴）分析結果によれば、不対電
子を示すスピンがホウ素固溶量に比例して増加してお
り、従来のカーボンブラックでは全く見られなかった現
象を示す。According to the results of ESR (electron spin resonance) analysis, the boron solid solution CB used in the present invention has an unpaired electron whose spin increases in proportion to the boron solid solution amount. This shows a phenomenon that was not seen at all with carbon black.
【００１５】本発明で使用されるホウ素固溶ＣＢは、Ｊ
ＩＳ Ｋ １４６９に従って測定された電気抵抗率が
０．１０Ωｃｍ以下であることが好ましく、その時のホ
ウ素の固溶量は０．６重量％以上であることが好まし
い。The boron-dissolved CB used in the present invention is J
The electrical resistivity measured according to IS K 1469 is preferably 0.10 Ωcm or less, and the solid solution amount of boron at that time is preferably 0.6% by weight or more.
【００１６】次に、本発明の電極について説明すると、
電極が負極である場合、その負極活物質としては、各種
の炭素質材料が使用される。その具体例をあげれば、天
然黒鉛、人造黒鉛、グラファイト、活性炭、コークス、
ニードルコークス、フリュードコークス、メソフェーズ
マイクロビーズ、炭素繊維、熱分解炭素などである。Next, the electrode of the present invention will be described.
When the electrode is a negative electrode, various carbonaceous materials are used as the negative electrode active material. Specific examples include natural graphite, artificial graphite, graphite, activated carbon, coke,
Needle coke, fluid coke, mesophase microbeads, carbon fiber, pyrolytic carbon, etc.
【００１７】一方、本発明の電極が正極である場合、そ
の正極活物質としては、ＴｉＳ2、ＭｏＳ2、ＮｂＳ
ｅ2、Ｖ2Ｏ5等のリチウムを含有しない金属硫化物、金
属酸化物、あるいはＬｉxＭＯ2（但し、式中Ｍは、一種
類以上の遷移金属であり、通常０．０５＜＝ｘ＜＝１．
０である。）を主体とするリチウム複合酸化物を使用す
ることができる。具体的には、コバルト酸リチウム、マ
ンガン酸リチウム等である。On the other hand, when the electrode of the present invention is a positive electrode, the positive electrode active material may be TiS 2 , MoS 2 , NbS
e 2 , V 2 O 5, and other lithium-free metal sulfides, metal oxides, or Li x MO 2 (where M is one or more transition metals, usually 0.05 <= x <= 1.
0. ) Can be used. Specifically, lithium cobaltate, lithium manganate and the like are used.
【００１８】本発明の電極は、例えば、負極活物質又は
正極活物質とホウ素固溶ＣＢとの混合物を結着剤を含む
液体に分散してスラリーを調製し、それを金属箔からな
る集電体に塗布・乾燥によって、被着させることよって
製造することができる。The electrode of the present invention is prepared, for example, by preparing a slurry by dispersing a mixture of a negative electrode active material or a positive electrode active material and boron solid solution CB in a liquid containing a binder, and collecting the slurry by a metal foil. It can be manufactured by applying to a body and applying it by drying.
【００１９】この場合において、ホウ素固溶ＣＢの使用
量は、ホウ素固溶ＣＢと、負極活物質又は正極活物質と
の合計に対し、ホウ素固溶ＣＢが０．１〜２０重量％の
含有割合であることが好ましい。０．１重量％未満で
は、電極の導電性が不十分となり、導電経路の保持が十
分に確保することが困難となる。ホウ素固溶ＣＢの割合
が増えるにつれ、非水系二次電池の寿命が長くなるが、
逆に充放電容量が小さくなるので、両特性のバランスか
ら、その上限は２０重量％であることが好ましい。In this case, the amount of the boron solid solution CB is 0.1 to 20% by weight of the total amount of the boron solid solution CB and the negative electrode active material or the positive electrode active material. It is preferred that When the content is less than 0.1% by weight, the conductivity of the electrode becomes insufficient, and it becomes difficult to sufficiently maintain the conductive path. As the proportion of boron solid solution CB increases, the life of the non-aqueous secondary battery increases,
Conversely, since the charge / discharge capacity is reduced, the upper limit is preferably 20% by weight from the balance between the two characteristics.
【００２０】結着剤としては、ポリエチレン、ニトリル
ゴム、ポリブタジエン、ブチルゴム、ポリスチレン、ス
チレン・ブタジエンゴム、多硫化ゴム、ニトロセルロー
ス、四フッ化エチレン樹脂、ポリフッ化ビニリデン、ポ
リフッ化クロロプレン等が用いられる。Examples of the binder include polyethylene, nitrile rubber, polybutadiene, butyl rubber, polystyrene, styrene / butadiene rubber, polysulfide rubber, nitrocellulose, tetrafluoroethylene resin, polyvinylidene fluoride, and polychloroprene.
【００２１】集電体としては、特に限定されるものでは
ないが、金、銀、銅、白金、アルミニウム、鉄、ニッケ
ル、クロム、マンガン、鉛、タングステン、チタン等、
ないしこれらを成分とする合金の金属箔が使用される。
金属箔の厚みは、薄いほうが好ましい。取り扱いの容易
さより、正極にはアルミニウムが、負極には銅が好適で
ある。The current collector is not particularly limited, but includes gold, silver, copper, platinum, aluminum, iron, nickel, chromium, manganese, lead, tungsten, titanium and the like.
Alternatively, a metal foil of an alloy containing these components is used.
The thickness of the metal foil is preferably thin. Aluminum is suitable for the positive electrode and copper is suitable for the negative electrode because of its ease of handling.
【００２２】本発明の負極及び／又は正極を用いて、本
発明の非水系二次電池を作製するには、従来の負極及び
／又は正極のかわりに、本発明の負極及び／又は正極を
用いればよく、特別な配慮は必要としない。In order to produce the nonaqueous secondary battery of the present invention using the negative electrode and / or the positive electrode of the present invention, the negative electrode and / or the positive electrode of the present invention is used instead of the conventional negative electrode and / or positive electrode. No special consideration is required.
【００２３】電解液としては、プロピレンカーボネー
ト、エチレンカーボネート、γ−ブチルラクトン、Ｎ−
メチルピロリドン、アセトニトリル、Ｎ，Ｎ−ジメチル
ホルムアミド、ジメチルスルフォキシド、テトラヒドロ
フラン、１，３−ジオキソラン、ギ酸メチル、スルホラ
ン、オキソゾリドン、塩化チオニル、１，２，−ジメト
キシエタン、ジエチレンカーボネートや、これらの誘導
体等が用いられる。また、電解質としてはリチウムのハ
ロゲン化物、リチウムの過塩素酸塩、リチウムのチオシ
アン塩、リチウムのホウフッ化塩、リチウムのリンフッ
化塩、リチウムの砒素フッ化塩、リチウムのアルミニウ
ムフッ化塩、リチウムのトリフルオロメチル硫酸塩等が
使用される。必要に応じて、セパレーター、端子、絶縁
板等の部品が取り付けられる。As the electrolyte, propylene carbonate, ethylene carbonate, γ-butyl lactone, N-
Methylpyrrolidone, acetonitrile, N, N-dimethylformamide, dimethyl sulfoxide, tetrahydrofuran, 1,3-dioxolan, methyl formate, sulfolane, oxozolidone, thionyl chloride, 1,2-dimethoxyethane, diethylene carbonate and derivatives thereof Are used. Examples of the electrolyte include lithium halide, lithium perchlorate, lithium thiocyanate, lithium borofluoride, lithium phosphorus fluoride, lithium arsenic fluoride, lithium aluminum fluoride, lithium aluminum fluoride, and lithium lithium fluoride. Trifluoromethyl sulfate is used. If necessary, parts such as a separator, a terminal, and an insulating plate are attached.
【００２４】本発明の非水系二次電池の用途としては、
ビデオカメラ、パソコン、ワープロ、携帯電話等の携帯
用小型電子機器などである。The use of the non-aqueous secondary battery of the present invention is as follows.
Examples include portable small electronic devices such as video cameras, personal computers, word processors, and mobile phones.
【００２５】[0025]
【実施例】以下、実施例、比較例をあげて更に具体的に
本発明を説明する。The present invention will be described below more specifically with reference to examples and comparative examples.
【００２６】実施例１〜３ 比較例１ アセチレンガス（炭化水素）と、気化させたホウ酸トリ
メチル（ホウ素源）とを、ノズル投入前であらかじめ混
合し、それを炉全長６ｍ、炉直径１ｍのカーボンブラッ
ク製造炉の炉頂に設置されたノズルから、表１の条件で
噴霧し、アセチレンの熱分解反応を利用して種々のホウ
素固溶ＣＢ又はカーボンブラックを製造し、以下の物性
を測定した。それらの結果を表１に示す。Examples 1 to 3 Comparative Example 1 Acetylene gas (hydrocarbon) and vaporized trimethyl borate (boron source) were previously mixed before being charged into a nozzle, and were mixed with a furnace having a total length of 6 m and a furnace diameter of 1 m. From the nozzle installed on the top of the carbon black production furnace, spraying was performed under the conditions shown in Table 1, and various boron-dissolved CBs or carbon blacks were produced using a thermal decomposition reaction of acetylene, and the following physical properties were measured. . Table 1 shows the results.
【００２７】（１）ホウ素固溶量：上記に従って測定し
た。 （２）沃素吸液量：ＪＩＳ Ｋ １４７４に従って測定
した。 （３）比表面積：窒素ガス吸着によるＢＥＴ式１点法に
て測定した。 （４）電気抵抗率：ＪＩＳ Ｋ １４６９ に従って測
定した。(1) Boron solid solution amount: Measured as described above. (2) Iodine absorption: Measured according to JIS K 1474. (3) Specific surface area: measured by the BET one-point method using nitrogen gas adsorption. (4) Electric resistivity: measured in accordance with JIS K 1469.
【００２８】[0028]
【表１】 [Table 1]
【００２９】次に、負極活物質の黒鉛粉末を９９．５重
量％と上記で製造されたホウ素固溶ＣＢ又カーボンブラ
ック（導電剤）０．５重量％とを混合した後、ＥＰＤＭ
（エチレン−プロピレンゴム：結着剤）を含む溶液に分
散させてスラリーを調製し、それを銅箔（集電体）に塗
布・乾燥して負極を作製した。Next, 99.5% by weight of the graphite powder of the negative electrode active material was mixed with 0.5% by weight of the CB or carbon black (conductive agent) prepared in the above, and then EPDM
(Ethylene-propylene rubber: binder) was dispersed in a solution to prepare a slurry, which was applied to a copper foil (current collector) and dried to produce a negative electrode.
【００３０】対極として金属リチウムを用い、エチレン
カーボネート／ジメチルカーボネートを１／１の容積比
で混合した溶液に、過塩素酸リチウム１モル濃度を溶解
させたものを電解液とし、コイン型電池を作製した。サ
イクル数５０で充放電試験を行った。試験は、金属リチ
ウムに対し、０−１．５Ｖ、定電流５０ｍＡ／ｇ（活物
質に１６ｍｇに対して０．８ｍＡ）で行った。それらの
結果を表２に示す。なお、放電容量は活物質の重量当た
りの容量である。Using lithium metal as a counter electrode, a solution prepared by dissolving 1 mol of lithium perchlorate in a solution obtained by mixing ethylene carbonate / dimethyl carbonate at a volume ratio of 1/1 was used as an electrolyte to prepare a coin-type battery. did. A charge / discharge test was performed with 50 cycles. The test was performed at 0 to 1.5 V and a constant current of 50 mA / g for metallic lithium (0.8 mA for 16 mg of active material). Table 2 shows the results. Note that the discharge capacity is a capacity per weight of the active material.
【００３１】[0031]
【表２】 [Table 2]
【００３２】実施例４、５ 比較例２ 正極活物質としてＬｉＣｏＯ2 を用い、それを実施例１
で製造されたホウ素固溶ＣＢ（導電剤）とを表３の割合
で混合した後、ＰＶＤＦ（ポリフッ化ビニリデン：結着
剤）を含む溶液に分散させスラリーを調製し、それをア
ルミニウム箔（集電体）に塗布・乾燥して正極を作製
し、コイン型電池を作製した。比較例として、比較例１
で製造されたカーボンブラック（導電剤）を用いたこと
以外は、同様に正極を作製した。Examples 4 and 5 Comparative Example 2 LiCoO 2 was used as a positive electrode active material, and
After mixing with the boron-dissolved CB (conductive agent) manufactured in the above at a ratio shown in Table 3, the slurry was prepared by dispersing in a solution containing PVDF (polyvinylidene fluoride: binder), and the slurry was prepared using an aluminum foil (collector). The positive electrode was prepared by coating and drying the same on a (electric) body, and a coin-type battery was prepared. As Comparative Example, Comparative Example 1
A positive electrode was prepared in the same manner as above except that the carbon black (conductive agent) manufactured in the above was used.
【００３３】対極として金属リチウムを用い、上記と同
様に充放電特性試験をサイクル数１００回で行った。試
験は、金属リチウムに対して３．７−４．３Ｖ、定電流
４０ｍＡ／ｇ（活物質２０ｍｇに対して０．８ｍＡ）で
行った。それらの結果を表３に示す。Using lithium metal as a counter electrode, a charge / discharge characteristic test was performed at 100 cycles in the same manner as described above. The test was performed at 3.7-4.3 V for lithium metal and at a constant current of 40 mA / g (0.8 mA for 20 mg of active material). Table 3 shows the results.
【００３４】実施例６、７ 比較例３ 正極活物質として、ＬｉＣｏＯ2 の代わりにＬｉＭｎ2
Ｏ4を用いたこと以外は実施例４、５と同様としてコイ
ン型電池を作製した。試験は、金属リチウムに対して
３．５−４．３Ｖ、定電流４０ｍＡ／ｇ（活物質２０ｍ
ｇに対して０．８ｍＡ）で行った。それらの結果を表３
に示す。Examples 6 and 7 Comparative Example 3 LiMn 2 was used instead of LiCoO 2 as a positive electrode active material.
A coin-type battery was produced in the same manner as in Examples 4 and 5, except that O 4 was used. The test was performed at 3.5 to 4.3 V and a constant current of 40 mA / g (active material 20 m
g at 0.8 mA). Table 3 shows the results.
Shown in
【００３５】[0035]
【表３】 [Table 3]
【００３６】[0036]
【発明の効果】本発明によれば、充放電容量が大で、寿
命の長い非水系二次電池を提供することができる。According to the present invention, a non-aqueous secondary battery having a large charge / discharge capacity and a long life can be provided.
フロントページの続き (72)発明者 鶴田 和義 福岡県大牟田市新開町１ 電気化学工業株 式会社大牟田工場内 Ｆターム(参考） 5H003 AA02 AA04 BA00 BB15 5H014 AA02 BB08 EE05 EE07 5H029 AJ03 AJ05 AK02 AK03 AK05 AL06 AL07 AL08 AM02 AM03 AM04 AM05 AM07 BJ03 DJ08 EJ04 Continued on the front page (72) Inventor Kazuyoshi Tsuruta 1 Shinkaicho, Omuta-shi, Fukuoka F-term (reference) in the Omuta Plant of Denki Kagaku Kogyo Co., Ltd. 5H003 AA02 AA04 BA00 BB15 5H014 AA02 BB08 EE05 EE07 5H029 AJ03 AJ05 AK02 AK03 AK05 AL06 AL07 AL08 AM02 AM03 AM04 AM05 AM07 BJ03 DJ08 EJ04
Claims (3)
とを特徴とする非水系二次電池電極の導電剤。1. A conductive agent for a non-aqueous secondary battery electrode, comprising a boron solid solution carbon black.
記載のホウ素固溶カーボンブラックとを含む組成物を集
電体に被着させてなることを特徴とする非水系二次電池
の電極。2. A negative electrode active material or a positive electrode active material, and
An electrode for a non-aqueous secondary battery, comprising a current collector and a composition containing the boron-solid-solution carbon black described above.
電極で構成されてなることを特徴とする非水系二次電
池。3. A non-aqueous secondary battery comprising a negative electrode and / or a positive electrode comprising the electrode according to claim 2.
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|---|---|---|---|
| JP13296799A JP3804898B2 (en) | 1999-05-13 | 1999-05-13 | Nonaqueous secondary battery electrode conductive agent, electrode and nonaqueous secondary battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13296799A JP3804898B2 (en) | 1999-05-13 | 1999-05-13 | Nonaqueous secondary battery electrode conductive agent, electrode and nonaqueous secondary battery |
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| Publication Number | Publication Date |
|---|---|
| JP2000323144A true JP2000323144A (en) | 2000-11-24 |
| JP3804898B2 JP3804898B2 (en) | 2006-08-02 |
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ID=15093697
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007103069A (en) * | 2005-09-30 | 2007-04-19 | Denso Corp | Electrode for lithium secondary battery and its manufacturing method as well as lithium secondary battery |
| CN106063000A (en) * | 2014-02-28 | 2016-10-26 | 三洋电机株式会社 | Positive electrode for non-aqueous electrolyte secondary cell and non-aqueous electrolyte secondary cell using same |
| JP2017152337A (en) * | 2016-02-26 | 2017-08-31 | 株式会社豊田中央研究所 | Negative electrode for nonaqueous lithium ion secondary battery, manufacturing method thereof, and nonaqueous lithium ion secondary battery |
| CN107210426A (en) * | 2014-12-04 | 2017-09-26 | 电化株式会社 | Electrode conductive composition, nonaqueous battery electrode and nonaqueous battery |
-
1999
- 1999-05-13 JP JP13296799A patent/JP3804898B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007103069A (en) * | 2005-09-30 | 2007-04-19 | Denso Corp | Electrode for lithium secondary battery and its manufacturing method as well as lithium secondary battery |
| CN106063000A (en) * | 2014-02-28 | 2016-10-26 | 三洋电机株式会社 | Positive electrode for non-aqueous electrolyte secondary cell and non-aqueous electrolyte secondary cell using same |
| CN107210426A (en) * | 2014-12-04 | 2017-09-26 | 电化株式会社 | Electrode conductive composition, nonaqueous battery electrode and nonaqueous battery |
| JP2017152337A (en) * | 2016-02-26 | 2017-08-31 | 株式会社豊田中央研究所 | Negative electrode for nonaqueous lithium ion secondary battery, manufacturing method thereof, and nonaqueous lithium ion secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3804898B2 (en) | 2006-08-02 |
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