JP2609847B2 - Non-aqueous secondary battery - Google Patents
Non-aqueous secondary batteryInfo
- Publication number
- JP2609847B2 JP2609847B2 JP61088905A JP8890586A JP2609847B2 JP 2609847 B2 JP2609847 B2 JP 2609847B2 JP 61088905 A JP61088905 A JP 61088905A JP 8890586 A JP8890586 A JP 8890586A JP 2609847 B2 JP2609847 B2 JP 2609847B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electrode
- conductive polymer
- separator member
- layer
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】 イ 産業上の利用分野 本発明は導電性ポリマーを電極材料に用いる非水系二
次電池の製造方法に関するものである。The present invention relates to a method for producing a non-aqueous secondary battery using a conductive polymer as an electrode material.
ロ 従来の技術 例えば特開昭56-136469号公報に開示されているよう
に、ポリピロール，ポリアセチレン，ポリチオフエンな
どの導電性ポリマーを電極材料とする非水系二次電池は
軽量で高エネルギー密度を有し、且無公害であるため近
年において特に注目されている。B) Prior art As disclosed in, for example, JP-A-56-136469, a non-aqueous secondary battery using a conductive polymer such as polypyrrole, polyacetylene, or polythiophene as an electrode material has a light weight and a high energy density. In recent years, it has attracted particular attention because it is pollution-free.
ところが非水系電解質を用いる関係上、大電流を取出
せないという致命的な問題があつた。However, since a non-aqueous electrolyte is used, there is a fatal problem that a large current cannot be obtained.
ハ 発明が解決しようとする問題点 電極間距離を小さくして内部抵抗を減少させ、大電流
の取出しを可能ならしめようとするものである。(C) Problems to be Solved by the Invention It is an object of the present invention to reduce the distance between the electrodes to reduce the internal resistance and to make it possible to take out a large current.
ニ 問題点を解決するための手段 本発明の非水系二次電池の製造方法は、前記準備され
たセパレータ部材の一方の面に、プラズマ重合法または
気相化学重合法により正極としての導電性ポリマー薄層
を形成する工程と、前記準備されたセパレータ部材の他
方の面に、プラズマ重合法または気相化学重合法により
負極としての導電性ポリマー薄層若しくは蒸着により負
極としてのアルカリ金属薄層を形成する工程と、これら
正負極の各表面に集電層を形設したる電極体を備える工
程からなる。D. Means for Solving the Problems The method for producing a non-aqueous secondary battery of the present invention comprises the steps of: Forming a thin layer, and forming a conductive polymer thin layer as a negative electrode or an alkali metal thin layer as a negative electrode by evaporation on the other surface of the prepared separator member by a plasma polymerization method or a gas phase chemical polymerization method. And a step of providing an electrode body having a current collecting layer formed on each surface of the positive and negative electrodes.
ホ 作用 本発明によれば、セパレータを介して正負極が一体化
されているため、従来構造のように正負極が個別に隔離
されているものに比して電極間距離が小さく正負極及び
セパレータ間の密着性が良く剥離が生じにくいため、内
部抵抗が減じられる。According to the present invention, since the positive and negative electrodes are integrated via the separator, the distance between the electrodes is smaller than that of the conventional structure in which the positive and negative electrodes are individually separated as in the conventional structure. The internal resistance is reduced because the adhesion between them is good and the peeling is hard to occur.
又、本発明電池構造によると電池体積を小さくでき電
池の薄型化、小型化が計れる。そして、多孔性を有する
セパレータ部材の両面で、導電性ポリマーの重合を行っ
ているので、実質的な表面積の大きなポリマー電極を構
成できる。また、セパレータ部材の両面で重合が進行す
るために、セパレータの一部内部まで正負極の活物質が
食い込んだ形となり、正負極の電極間距離が小さくなっ
て、電池の内部抵抗が減少する。この結果、高率放電特
性が大幅に改善される。Further, according to the battery structure of the present invention, the battery volume can be reduced, and the battery can be made thinner and smaller. In addition, since the conductive polymer is polymerized on both sides of the porous separator member, a polymer electrode having a substantially large surface area can be formed. In addition, since polymerization proceeds on both surfaces of the separator member, the active material of the positive and negative electrodes penetrates into a part of the separator, so that the distance between the positive and negative electrodes decreases, and the internal resistance of the battery decreases. As a result, the high rate discharge characteristics are significantly improved.
尚、セパレータ部材としては合成樹脂製の微孔性薄膜
或いは不織布などを用いることができるが、微孔性薄膜
の場合にはより薄型化が可能となる利点がある。As the separator member, a microporous thin film made of synthetic resin or a nonwoven fabric can be used. However, a microporous thin film has an advantage that it can be made thinner.
ヘ 実施例 ポリプロピレン製微孔性薄膜をセパレータとし、この
セパレータの一方の面に正極としてのポリピロール薄層
をプラズマ重合法により形成する。プラズマ重合はチヤ
ンバー内圧力0.5torr.で6.5KHZの低周波電源によりプラ
ズマ重合電流50mAで40時間行なつた。その後、セパレー
タの他方の面に負極としてのリチウム金属薄層を蒸着に
より形成した。蒸着は真空蒸着により５分間行なつた。F Example The polypropylene microporous thin film is used as a separator, and a polypyrrole thin layer as a positive electrode is formed on one surface of the separator by a plasma polymerization method. Plasma polymerization was carried out for 40 hours with a plasma polymerization current of 50 mA and a low frequency power supply of 6.5 KHZ at a chamber pressure of 0.5 torr. Thereafter, a lithium metal thin layer as a negative electrode was formed on the other surface of the separator by vapor deposition. The vapor deposition was performed for 5 minutes by vacuum vapor deposition.
ついで正．負極の各表面にステンレスをスパツタリン
グして集電層を形成した。尚、スパツタリング条件はチ
ヤンバー内のアルゴンガス圧７×10-3torr.においてス
パツタイリング電流100mAで10分間行なつた。Then positive. A stainless steel was sputtered on each surface of the negative electrode to form a current collecting layer. The spattering was performed at a sparging current of 100 mA for 10 minutes at an argon gas pressure of 7 × 10 −3 torr in the chamber.
以上のようにして形成した厚さ0.12mm、幅12mm、長さ
200mmの電極体の両面に幅12mm、長さ220mmのポリプロピ
レン製微孔性薄膜を重ね渦巻状に巻取つた後、電池罐に
封入し、電解液としてポロピレンカーボネートに過塩素
酸リチウムを２モルイ／溶解したものを用いて本発明
電池（Ａ）を作成した。Thickness 0.12mm, width 12mm, length formed as above
A microporous thin film made of polypropylene with a width of 12 mm and a length of 220 mm is laminated on both sides of a 200 mm electrode body and wound up in a spiral shape. Then, the battery is sealed in a battery can, and 2 mol of lithium perchlorate is added to propylene carbonate as an electrolytic solution. / A battery of the present invention (A) was prepared using the solution.
尚、上記実施例ではポリピロール薄層の形成法として
プラズマ重合法の場合を例示したがその他に気相化学重
合法も適用しうる。気相化学重合法としてはセパレータ
の一方の面に酸化剤である過塩素酸鉄を例えば水などの
溶媒に溶解したものを塗布し、ピロール蒸気中に保持さ
せることによりポリピロール薄層が形成される。In the above embodiment, a plasma polymerization method is exemplified as a method for forming a thin polypyrrole layer, but a gas phase chemical polymerization method can also be applied. As a gas-phase chemical polymerization method, a thin layer of polypyrrole is formed by applying a material obtained by dissolving iron perchlorate, which is an oxidizing agent, in a solvent such as water on one surface of a separator, and keeping the solution in pyrrole vapor. .
ついで比較例として、ポリピロール粉末600mgと、ポ
リテトラフルオロエチレン結着剤30mgを混合しステンレ
ス箔上に圧着したものを正極とし、負極としてリチウム
金属板、セパレータとしてポリプロピレン微孔性薄膜を
用いこれらを渦巻状に巻取つた後、電池罐に封入し、電
解液としてプロピレンカーボネートに過塩素酸リチウム
を２モル／溶解したものを用いて比較電池（Ｂ）を作
成した。Next, as a comparative example, a mixture of 600 mg of polypyrrole powder and 30 mg of a polytetrafluoroethylene binder and pressed on a stainless steel foil was used as a positive electrode, a lithium metal plate was used as a negative electrode, and a polypropylene microporous thin film was used as a separator. After winding into a shape, the battery was sealed in a battery can, and a comparative battery (B) was prepared using 2 mol / dissolved lithium perchlorate in propylene carbonate as an electrolytic solution.
図は本発明電池と比較電池との充放電特性比較図を示
し、充放電条件は電流0.4Aで１分間充電し、電流0.4Aで
電池電圧が2.5Vに達するまで放電した。The figure shows a comparison chart of the charging and discharging characteristics of the battery of the present invention and the comparative battery. The charging and discharging conditions were as follows.
図より本発明電池は実線で示す充電特性において充電
々圧が低く、且破線で示す放電特性において放電時間が
長いことがわかる。From the figure, it can be seen that the battery of the present invention has a low charge-to-charge pressure in the charge characteristics shown by the solid line and a long discharge time in the discharge characteristics shown by the broken line.
この理由は、本発明電池の場合、正負極及びセパレー
タが一体化さえているため電極間距離が小さく内部抵抗
が減じられていることに起因するものである。The reason for this is that in the case of the battery of the present invention, since the positive and negative electrodes and the separator are even integrated, the distance between the electrodes is small and the internal resistance is reduced.
又、電極間距離が小さいことによる内部抵抗の減少に
加えて電極と集電層との密着性が強固であるため大電流
の取出しが可能となる。Further, in addition to the decrease in internal resistance due to the small distance between the electrodes, the adhesion between the electrodes and the current collecting layer is strong, so that a large current can be taken out.
尚、導電性ポリマー薄層を形成するに際して実施例で
示したプラズマ重合法を用いれば電極表面が粗面化され
表面積が増大して活物質の利用率が向上しさらに放電容
量の増大が計れるという利点がある。When the plasma polymerization method described in the examples is used to form the conductive polymer thin layer, the electrode surface is roughened, the surface area is increased, the utilization rate of the active material is improved, and the discharge capacity can be increased. There are advantages.
ト 発明の効果 上述した如く、本発明によれば導電性ポリマーを少く
とも一方の電極に用いた電池の高率充放電特性を改善し
うると共に、さらにこの種電池の薄型化、小型化が計れ
る。そして、多孔性を有するセパレータ部材の両面で、
導電性ポリマーの重合を行っているので、実質的な表面
積の大きなポリマー電極を構成できる。また、セパレー
タ部材の両面で重合が進行するために、セパレータの一
部内部まで正負極の活物質が食い込んだ形となり、正負
極の電極間距離が小さくなって、電池の内部抵抗が減少
する。この結果、高率放電特性が大幅に改善されるもの
であり、その工業的価値は極めて大である。(G) As described above, according to the present invention, it is possible to improve the high-rate charge / discharge characteristics of a battery using a conductive polymer for at least one electrode, and to further reduce the thickness and size of this type of battery. . And on both sides of the porous separator member,
Since the conductive polymer is polymerized, a polymer electrode having a substantially large surface area can be formed. Further, since the polymerization proceeds on both sides of the separator member, the active material of the positive and negative electrodes penetrates into a part of the separator, and the distance between the electrodes of the positive and negative electrodes is reduced, and the internal resistance of the battery is reduced. As a result, the high rate discharge characteristics are greatly improved, and the industrial value is extremely large.
図は本発明電池と比較電池との充放電特性比較図であ
る。 （Ａ）……本発明電池、（Ｂ）……比較電池。The figure is a comparison diagram of the charge and discharge characteristics of the battery of the present invention and the comparative battery. (A) ... battery of the present invention, (B) ... comparative battery.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古川 修弘 守口市京阪本通２丁目18番地 三洋電機 株式会社内 (56)参考文献 特開 昭58−112272（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Nobuhiro Furukawa 2-18 Keihanhondori, Moriguchi City Sanyo Electric Co., Ltd. (56) References JP-A-58-112272 (JP, A)
Claims (1)
重合法または気相化学重合法により正極としての導電性
ポリマー薄層を形成する工程と、 前記準備されたセパレータ部材の他方の面に、プラズマ
重合法または気相化学重合法により負極としての導電性
ポリマー薄層若しくは蒸着により負極としてのアルカリ
金属薄層を形成する工程と、 これら正負極の各表面に集電層を形設したる電極体を備
える工程からなる非水系二次電池の製造方法。After preparing a separator member, a step of forming a conductive polymer thin layer as a positive electrode on one surface of the prepared separator member by a plasma polymerization method or a gas phase chemical polymerization method; Forming a thin conductive polymer layer as a negative electrode or a thin alkali metal layer as a negative electrode by plasma polymerization or vapor phase chemical polymerization on the other surface of the separated separator member; A method for manufacturing a non-aqueous secondary battery, comprising a step of providing an electrode body on which a current collecting layer is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61088905A JP2609847B2 (en) | 1986-04-17 | 1986-04-17 | Non-aqueous secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61088905A JP2609847B2 (en) | 1986-04-17 | 1986-04-17 | Non-aqueous secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62246270A JPS62246270A (en) | 1987-10-27 |
| JP2609847B2 true JP2609847B2 (en) | 1997-05-14 |
Family
ID=13955959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61088905A Expired - Fee Related JP2609847B2 (en) | 1986-04-17 | 1986-04-17 | Non-aqueous secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2609847B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0476253U (en) * | 1990-11-16 | 1992-07-03 | ||
| WO2000077875A1 (en) * | 1999-06-11 | 2000-12-21 | Le Carbone Lorraine | Method for making a multilayer structure for lithium polymer generators |
| KR100445792B1 (en) * | 2001-06-09 | 2004-08-25 | 한국과학기술연구원 | United lithium electrode with a separator and lithium batteries comprising it |
| US8076027B2 (en) | 2005-01-26 | 2011-12-13 | Panasonic Corporation | Negative electrode for lithium secondary battery, lithium secondary battery using same, and methods for manufacturing those |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5812272A (en) * | 1981-07-15 | 1983-01-24 | Nippon Telegr & Teleph Corp <Ntt> | Storage battery with catalytic stopper |
| JPS58112272A (en) * | 1981-12-26 | 1983-07-04 | Nippon Telegr & Teleph Corp <Ntt> | Manufacture of base-plate mounted battery |
-
1986
- 1986-04-17 JP JP61088905A patent/JP2609847B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62246270A (en) | 1987-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |