JP2593580B2 - Battery - Google Patents
BatteryInfo
- Publication number
- JP2593580B2 JP2593580B2 JP2293049A JP29304990A JP2593580B2 JP 2593580 B2 JP2593580 B2 JP 2593580B2 JP 2293049 A JP2293049 A JP 2293049A JP 29304990 A JP29304990 A JP 29304990A JP 2593580 B2 JP2593580 B2 JP 2593580B2
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- battery
- positive electrode
- negative electrode
- electrode current
- 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
-
- 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
- Cell Electrode Carriers And Collectors (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a battery.
〔従来の技術〕 近年のエレクトロニクス技術の発展は目ざましく、機
器の小形化、軽量化、薄形化、多機能化が計られてき
た。それに伴い、エレクトロニクス製品、機器の電源で
ある電池の小形化、軽量化、薄形化が望まれている。そ
の要望に応えるものとして、電池各部材の薄肉化や、電
池形状のコイン形化、扁平状活物質の積層シート状化な
どが実施され、特に最近では、同一平面上に薄形扁平状
の正極、電解質、負極を形成し、電池をさらに薄形にし
た扁平状電池が提案されている。[Prior Art] In recent years, the development of electronics technology has been remarkable, and devices have been reduced in size, weight, thickness, and multifunctionality. Along with this, there is a demand for smaller, lighter, and thinner batteries that are power supplies for electronic products and equipment. In response to the demand, thinning of each battery member, coin-shaped battery shape, lamination of a flat active material into a sheet shape, and the like have been carried out. Particularly recently, a thin flat cathode has been formed on the same plane. A flat battery has been proposed in which a battery is further thinned by forming a battery, an electrolyte, and a negative electrode.
しかし、上記提案の扁平状電池においては、集電方法
は活物質から電池外槽の外側に端子が延出されているた
め、端子部の封口が難しく、完全密閉化はなかなか容易
ではない。However, in the flat battery proposed above, since the terminals are extended from the active material to the outside of the battery outer tank in the current collecting method, it is difficult to seal the terminals, and it is not easy to completely seal the terminals.
〔課題を解決するための手段〕 そこで、この課題を解決するために、本発明電池は、
正極、負極およびその間に配置された電解質を有する発
電要素の両端面が各極集電体で密閉化された電池であっ
て、前記各極集電体は、それぞれ内側の面に集電部と絶
縁部とを有するものであり、正極集電体の集電部は正極
に、正極集電体の絶縁部は負極にそれぞれ接触してお
り、負極集電体の集電部は負極に、負極集電体の絶縁部
は正極にそれぞれ接触していることを特徴とするもので
ある。[Means for Solving the Problem] Therefore, in order to solve this problem, the battery of the present invention is:
A positive electrode, a negative electrode and a battery in which both end surfaces of a power generating element having an electrolyte disposed therebetween are sealed with respective electrode current collectors, and the respective electrode current collectors each have a current collector on an inner surface. The current collector of the positive electrode current collector is in contact with the positive electrode, the insulating part of the positive electrode current collector is in contact with the negative electrode, and the current collector of the negative electrode current collector is in contact with the negative electrode. The collector of the current collector is in contact with the positive electrode.
本発明は、上記構造を有することにより、端子が外装
の外側に突出せず、電池の密閉化が容易かつ確実になる
ばかりでなく、電池の薄形化が可能で生産性も向上す
る。According to the present invention, by having the above-described structure, the terminals do not protrude to the outside of the exterior, so that not only the sealing of the battery is easily and reliably achieved, but also the battery can be made thinner and the productivity is improved.
次に、本発明の一実施例を説明する。 Next, an embodiment of the present invention will be described.
第１図は本発明電池を実施した扁平状電池の断面図で
ある。厚さ約20μｍのSUS箔からなるシート状の正極集
電体5aおよび負極集電体5bを図のようにしぼり加工など
の方法で凹凸をつけ、内側がくぼんだ部分には絶縁性樹
脂をコーティングして絶縁部４とし、内側が突出した部
分は集電部７としている。正極集電体5aの中央部に設け
た集電部７に正極活物質として五酸化バナジウム水溶液
（ゾルまたはゲル）をスクリーン印刷などの方法により
円状に塗布した後乾燥する。乾燥したものは五酸化バナ
ジウムキセロゲルとなり、これが正極１である。正極１
の外側周囲に間隔を開けて負極２としてドーナツ形状の
リチウム箔を配置し、正極１と負極２の間に電解質３と
してポリフォスファゼン誘導体などの高いリチウムイオ
ン伝導性を有する高分子固体電解質をスクリーン印刷な
どの方法により塗布形成する。その上から負極集電体5b
を被せ、正極集電体5aと負極集電体5bの間の周縁部を変
性ポリエチレンなどの封止材６で密封している。FIG. 1 is a sectional view of a flat battery embodying the battery of the present invention. As shown in the figure, the sheet-like positive electrode current collector 5a and negative electrode current collector 5b made of SUS foil with a thickness of about 20μm are roughened by squeezing, etc., and the indented part is coated with insulating resin. Thus, the insulating portion 4 is formed. A vanadium pentoxide aqueous solution (sol or gel) as a positive electrode active material is applied to the current collector 7 provided at the center of the positive electrode current collector 5a in a circular shape by a method such as screen printing, and then dried. The dried product becomes vanadium pentoxide xerogel, which is the positive electrode 1. Positive electrode 1
A doughnut-shaped lithium foil is disposed as the negative electrode 2 at an interval around the outside of the device, and a polymer solid electrolyte having high lithium ion conductivity such as a polyphosphazene derivative is screened as the electrolyte 3 between the positive electrode 1 and the negative electrode 2. It is applied and formed by a method such as printing. From there, the negative electrode current collector 5b
And a peripheral portion between the positive electrode current collector 5a and the negative electrode current collector 5b is sealed with a sealing material 6 such as modified polyethylene.
次に本発明を実施した他の例を説明する。 Next, another embodiment of the present invention will be described.
第２図は本発明電池を実施した扁平形電池の他の例の
一部を破断した斜視図である厚さ約30μｍの絶縁性樹脂
フイルムの両表面の一部にアルミニウムなどの金属蒸着
膜からなる集電部７を形成した正極集電体5aおよび負極
集電体5bの集電部７以外の部分を絶縁部４としている。
この絶縁性樹脂フイルムの両面に形成された金属蒸着膜
は互いに樹脂フイルム中にスルーホールを設けることに
より接続されている。FIG. 2 is a perspective view in which a part of another example of the flat battery in which the battery of the present invention is implemented is cut away. A part of both surfaces of the insulating resin film having a thickness of about 30 μm is formed by depositing a metal deposition film such as aluminum. The portions other than the current collector 7 of the positive electrode current collector 5a and the negative electrode current collector 5b on which the current collector 7 is formed are used as insulating portions 4.
The metal deposition films formed on both surfaces of the insulating resin film are connected to each other by providing through holes in the resin film.
1,2,3は各々、正極、負極、電解質であり、その構
造、形成方法は本発明の前記実施例に準じた。1,2,3を
有する発電要素を正極集電体5aと負極集電体5bで挟み、
その間の周縁部に封止材６として変性ポリエチレン樹脂
フィルムを配置し加熱溶着し密封している。Reference numerals 1, 2, and 3 denote a positive electrode, a negative electrode, and an electrolyte, respectively, and the structure and forming method thereof are in accordance with the above-described embodiment of the present invention. A power generating element having 1, 2, 3 is sandwiched between a positive electrode current collector 5a and a negative electrode current collector 5b,
A modified polyethylene resin film is disposed as a sealing material 6 on the peripheral portion between them, and is heat-sealed and sealed.
尚、本発明の実施例は扁平形電池であるが、円筒型、
ボタン型、角型等、他の形状の電池にも適用可能なこと
は言うまでもない。Although the embodiment of the present invention is a flat battery, a cylindrical battery,
It goes without saying that the present invention can be applied to batteries of other shapes such as a button type and a square type.
上述したように、本発明は、電池外部へ電池内部から
のリード端子が突出せず、電池の密閉化が容易かつ確実
になるばかりでなく、短絡することなく簡単に集電でき
る。また電池は非常に薄い形状も可能で、超薄形状を保
ちながらも、確実に集電が行え、電池のフレキシビリテ
ィもそこなわないなど、本発明による効果は非常に大き
い。As described above, according to the present invention, the lead terminals from the inside of the battery do not protrude to the outside of the battery, so that the battery can be easily and reliably sealed, and the current can be easily collected without a short circuit. In addition, the battery can have a very thin shape, the current can be reliably collected while keeping the ultra-thin shape, and the flexibility of the battery is not impaired.
第１図は、本発明の一実施例における扁平形電池の断面
図、第２図は本発明の他の実施例における扁平形電池の
一部を破断した斜視図である。 １……正極、２……負極、３……電解質、４……絶縁
部、5a……正極集電体、5b……負極集電体、６……封止
材、７……集電部FIG. 1 is a cross-sectional view of a flat battery according to one embodiment of the present invention, and FIG. 2 is a partially cutaway perspective view of the flat battery according to another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Positive electrode, 2 ... Negative electrode, 3 ... Electrolyte, 4 ... Insulating part, 5a ... Positive electrode collector, 5b ... Negative electrode collector, 6 ... Sealing material, 7 ... Collector part
フロントページの続き (72)発明者 早川 他▲く▼美 東京都新宿区西新宿２丁目１番１号 新 神戸電機株式会社内 (72)発明者 小牧 昭夫 東京都新宿区西新宿２丁目１番１号 新 神戸電機株式会社内 (72)発明者 中長 偉文 徳島県徳島市川内町加賀須野463番地 大塚化学株式会社徳島研究所内 (72)発明者 谷口 正俊 徳島県徳島市川内町加賀須野463番地 大塚化学株式会社徳島研究所内 審査官 津野 孝 (56)参考文献 特開 平４−167351（ＪＰ，Ａ) 特開 昭62−128447（ＪＰ，Ａ)Continuing on the front page (72) Inventor Hayakawa et al. ▲ ▼ Beauty 2-1-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Inside Shin Kobe Electric Co., Ltd. (72) Inventor Akio Komaki 2-1-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo No. 1 Shin Kobe Electric Machinery Co., Ltd. Address Takashi Tsuno, Examiner, Tokushima Research Laboratory, Otsuka Chemical Co., Ltd. (56) References JP-A-4-167351 (JP, A)
Claims (2)
質を有する発電要素の両端面が各極集電体で密閉化され
た電池であって、前記各極集電体は、それぞれ内側の面
に集電部と絶縁部とを有するものであり、正極集電体の
集電部は正極に、正極集電体の絶縁部は負極にそれぞれ
接触しており、負極集電体の集電部は負極に、負極集電
体の絶縁部は正極にそれぞれ接触していることを特徴と
する電池。1. A battery in which both end faces of a power generating element having a positive electrode, a negative electrode and an electrolyte disposed therebetween are sealed with respective current collectors, wherein each of the current collectors has an inner surface. The current collector of the positive electrode current collector contacts the positive electrode, the insulator of the positive electrode current collector contacts the negative electrode, and the current collector of the negative electrode current collector. A battery contacting the negative electrode and an insulating portion of the negative electrode current collector contacting the positive electrode, respectively.
る請求項（１）記載の電池。2. The battery according to claim 1, wherein the electrolyte is a solid electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2293049A JP2593580B2 (en) | 1990-10-30 | 1990-10-30 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2293049A JP2593580B2 (en) | 1990-10-30 | 1990-10-30 | Battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04167358A JPH04167358A (en) | 1992-06-15 |
| JP2593580B2 true JP2593580B2 (en) | 1997-03-26 |
Family
ID=17789819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2293049A Expired - Fee Related JP2593580B2 (en) | 1990-10-30 | 1990-10-30 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593580B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8236444B2 (en) | 2007-03-27 | 2012-08-07 | Eveready Battery Company, Inc. | Electrochemical cell having low volume collector assembly |
-
1990
- 1990-10-30 JP JP2293049A patent/JP2593580B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04167358A (en) | 1992-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |