JPH0864213A - Layer-built battery and manufacture thereof - Google Patents
Layer-built battery and manufacture thereofInfo
- Publication number
- JPH0864213A JPH0864213A JP6201177A JP20117794A JPH0864213A JP H0864213 A JPH0864213 A JP H0864213A JP 6201177 A JP6201177 A JP 6201177A JP 20117794 A JP20117794 A JP 20117794A JP H0864213 A JPH0864213 A JP H0864213A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- current collectors
- current collector
- active material
- positive 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.)
- Granted
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
-
- 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
- Primary Cells (AREA)
- Secondary Cells (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、エレクトロニクス機
器、電気自動車、玩具、アクセサリ−、表示器具、非常
用電源、携帯用機器などの分野に使用される薄形電池に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin battery used in the fields of electronic devices, electric vehicles, toys, accessories, display devices, emergency power supplies, portable devices and the like.
【0002】[0002]
【従来の技術】図9、図10に示すように、従来の電池
は、正極集電体1の一部に突起状の端子部1aが設けら
れ、負極集電体2にも同様な突起状の端子部2aが設け
られている。これらの集電体1,2の内側周縁域に電気
的絶縁体を兼ねる封口材として窓枠状の接着材3が配置
されている。そして、それらの集電体1,2の間に正極
活物質、固体電解質、負極活物質などが配置され、接着
材3により密閉化されている。このような薄形電池4を
複数個積層し電池電圧を大きくする場合には、図11に
示すように下側の電池4’と上側の電池4”の同極性の
端子部2aとが重ならないように、電池4’と4”とを
ずらして積層していた。また、ずらさずに積層した場合
は、重なる集電体の端子部1b,2aを切断したり、絶
縁処理を施し、端子部で短絡しないようにしていた。ま
た、電池4’と4”とを一体化するために、積層した電
池の表面にフィルムなどを被覆していた。2. Description of the Related Art As shown in FIGS. 9 and 10, in a conventional battery, a positive electrode current collector 1 is provided with a projecting terminal portion 1a, and a negative electrode current collector 2 also has a similar projecting shape. Is provided with the terminal portion 2a. A window frame-shaped adhesive material 3 is arranged as a sealing material that also serves as an electrical insulator in the inner peripheral areas of the current collectors 1 and 2. Then, a positive electrode active material, a solid electrolyte, a negative electrode active material, and the like are arranged between the current collectors 1 and 2 and sealed with an adhesive material 3. When a plurality of such thin batteries 4 are stacked to increase the battery voltage, the lower battery 4 ′ and the upper battery 4 ″ of the same polarity terminal portion 2a do not overlap as shown in FIG. As described above, the batteries 4'and 4 "were stacked while being staggered. In the case of stacking without shifting, the terminal portions 1b and 2a of the overlapping current collectors are cut or subjected to an insulation treatment so that the terminal portions do not short-circuit. Further, in order to integrate the batteries 4 ′ and 4 ″, the surface of the stacked batteries was covered with a film or the like.
【0003】[0003]
【発明が解決しようとする課題】従来の技術で述べた、
電池4’と4”をずらして積層する方法は、電池が横方
向に長くなり、全体の寸法が大きくなるという問題点を
有していた。また、端子部1a,2aを切断したり絶縁
処理する方法は、作業が煩雑になるという問題点を有し
ていた。さらに、表面にフィルムなどを被覆すると、集
電体5,6からの放熱が悪くなり、体積エネルギー密度
も悪くなるという問題点を有していた。本発明は、上記
問題点に鑑みてなされたものであって、その目的とする
ところは、小形で薄く、かつ放熱性に優れ、体積エネル
ギー密度を向上した積層電池とその製造方法を提供する
ことにある。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The method of stacking the batteries 4'and 4 "by shifting them has a problem that the batteries become long in the lateral direction and the overall size becomes large. Further, the terminals 1a and 2a may be cut off or insulated. However, when the surface is covered with a film or the like, the heat radiation from the current collectors 5 and 6 deteriorates and the volume energy density also deteriorates. The present invention has been made in view of the above problems, and an object of the present invention is to provide a small and thin laminated battery excellent in heat dissipation and a volume energy density and a laminated battery thereof. It is to provide a manufacturing method.
【0004】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明の積層電池は、外装体を兼ねる正極集電体5
と負極集電体6の間に、正極活物質7、固体電解質9及
び負極活物質8を配し該集電体5,6周縁域を熱接着性
樹脂枠体10で互いに接着し、且つ該周縁域から外側に
該枠体10をはみ出させた薄形電池を複数個積層し、前
記枠体10のはみ出た部分10a同士を接着して一体化
したことを特徴とする。そして、前記枠体10の前記集
電体5,6からはみ出た部分10aの寸法が0.2mm
以上であることが望ましい。また、本発明の方法は、前
記集電体5,6の外寸と同寸の熱接着性樹脂枠体10を
該集電体5,6に加圧接着し、該枠体10を該集電体
5,6の周縁域からはみ出させた薄形電池を作製し、次
いで、複数の前記薄形電池を積層し、前記枠体10のは
み出た部分10aを互いに接着して一体化することを特
徴とする。In order to achieve the above object, the laminated battery of the present invention comprises a positive electrode current collector 5 also serving as an outer package.
Between the negative electrode current collector 6 and the positive electrode active material 7, the solid electrolyte 9 and the negative electrode active material 8 are arranged, and the peripheral regions of the current collectors 5 and 6 are adhered to each other with a thermoadhesive resin frame 10, and It is characterized in that a plurality of thin batteries having the frame body 10 protruding outward from the peripheral region are laminated, and the protruding portions 10a of the frame body 10 are bonded and integrated. The size of the portion 10a of the frame body 10 protruding from the current collectors 5 and 6 is 0.2 mm.
The above is desirable. Further, in the method of the present invention, a thermo-adhesive resin frame 10 having the same outer dimensions as the current collectors 5 and 6 is pressure-bonded to the current collectors 5 and 6, and the frame 10 is collected. A thin battery protruding from the peripheral regions of the electric bodies 5 and 6 is produced, and then a plurality of the thin batteries are stacked, and the protruding portions 10a of the frame body 10 are adhered to each other to be integrated. Characterize.
【0005】[0005]
【作用】請求項1によると、薄形電池に端子部を設けて
いないので、短絡する恐れがなく、小形化できる。ま
た、枠体10同士を接着して一体化しているので、幅寸
法が薄形電池の幅寸法と略同一となり、厚さも薄形電池
を積層した厚さと同一となる。さらに上下の集電体5,
6は露出しているので、放熱が容易である。請求項2に
よると、枠体10同士を接着する際、集電体5,6への
熱の伝達が少なくなり、負極活物質8の溶解などを防止
できる。また、はみ出た部分10a同士の接着が容易に
なる。請求項3によると、集電体5,6と枠体10とが
同寸法で加圧接着されるので、位置合わせが容易にな
り、位置ずれがなく電池内での短絡が防止できる。ま
た、枠体10同士を熱溶着するので、強固に接着でき
る。According to the present invention, since the thin battery is not provided with the terminal portion, there is no risk of short circuit and the battery can be made compact. Further, since the frame bodies 10 are bonded and integrated, the width dimension is substantially the same as the width dimension of the thin battery, and the thickness is the same as the laminated thickness of the thin batteries. Furthermore, the upper and lower collectors 5,
Since 6 is exposed, heat dissipation is easy. According to the second aspect, when the frame bodies 10 are adhered to each other, heat transfer to the current collectors 5 and 6 is reduced, and the negative electrode active material 8 can be prevented from melting. Further, the protruding portions 10a can be easily bonded to each other. According to the third aspect, since the current collectors 5 and 6 and the frame body 10 are pressure-bonded to each other with the same size, the alignment can be facilitated, and there is no displacement and a short circuit in the battery can be prevented. Further, since the frame bodies 10 are heat-welded to each other, they can be firmly bonded.
【0006】[0006]
(実施例1)以下、本発明を図面に従って説明する。図
1は本発明に係る電池要素を構成する帯状の正極集電体
5または負極集電体6の要部斜視図で、連続加工された
一連のものから所定の寸法に裁断されるものである。す
なわち、多数のものが一定パタ−ンで形成され、所定の
箇所で裁断され、個々の薄形電池の集電体として使用さ
れる。なお、5a,6aは位置合わせの穴、5b,6b
はパターンの区画穴である。この集電体5または6は、
電池寿命の点で非孔質性を持たせるには、例えばステン
レス箔で厚さ約0.010mm以上、銅箔で約0.02
0mm以上必要である。このような正極集電体5の各パ
タ−ン区域内に、正極活物質7との密着性を高め曲げ特
性を向上させるために、カ−ボン系樹脂を塗布し硬化さ
せる表面処理を行う。その後、二酸化マンガン、酸化ニ
ッケル、酸化コバルト、FeOCl、バナジン酸リチウ
ム、ジスルフィドなどをカ−ボン、グラファイト、アセ
チレンブラック、ケッチェンブラックなどの導電材、電
解質、モノマ−などと混練した正極活物質7を約0.1
5mm〜0.20mmの厚さで印刷し、電子線照射(又
は熱、UVなど)で硬化させる。(Embodiment 1) The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a main part of a strip-shaped positive electrode current collector 5 or negative electrode current collector 6 constituting a battery element according to the present invention, which is cut into a predetermined size from a continuously processed series. . That is, a large number of pieces are formed in a fixed pattern, cut at predetermined locations, and used as current collectors of individual thin batteries. 5a and 6a are alignment holes, 5b and 6b.
Is a partition hole of the pattern. This current collector 5 or 6 is
In order to provide non-porosity in terms of battery life, for example, stainless foil has a thickness of about 0.010 mm or more, and copper foil has a thickness of about 0.02.
0 mm or more is required. In each pattern area of the positive electrode current collector 5, a surface treatment for applying and curing a carbon-based resin is performed in order to enhance the adhesion with the positive electrode active material 7 and improve the bending characteristics. Thereafter, the positive electrode active material 7 is prepared by kneading manganese dioxide, nickel oxide, cobalt oxide, FeOCl, lithium vanadate, disulfide and the like with carbon, graphite, acetylene black, Ketjen black and other conductive materials, electrolytes and monomers. About 0.1
It is printed with a thickness of 5 mm to 0.20 mm and cured by electron beam irradiation (or heat, UV, etc.).
【0007】一方、負極集電体6の各パタ−ン区域内に
は金属リチウム、リチウム−アルミ合金、カ−ボンなど
の負極活物質8を圧着又は印刷する。さらに該負極活物
質8の表面全体を覆うようにの固体電解質9(電解質、
モノマー、フィラーなど)を約0.020mm〜0.0
55mmの厚さに印刷し、電子線照射(又は熱Vなど)
で硬化させる。次に上記各活物質7,8の外寸より約
0.2〜0.5mm大きい内寸で且つ集電体の外寸(パ
タ−ン形成された穴の内側間の長さに相当する)より大
きくしたパタ−ン化した一連の図2に示す熱接着性樹脂
枠体10をプレス打ち抜き又は彫刻刃ロ−ル、トムソン
刃などにより一定間隔で穴10aを設けて作製する。な
お、枠体10は、例えばポリプロピレン、変性ポリプロ
ピレンなどからなり、厚さは約0.20mm〜0.30
mmとする。On the other hand, a negative electrode active material 8 such as metallic lithium, lithium-aluminum alloy or carbon is pressure-bonded or printed in each pattern area of the negative electrode current collector 6. Furthermore, the solid electrolyte 9 (electrolyte, so as to cover the entire surface of the negative electrode active material 8)
Monomer, filler, etc.) about 0.020 mm to 0.0
Printed on 55mm thick, electron beam irradiation (or heat V etc.)
To cure. Next, the inner size is about 0.2 to 0.5 mm larger than the outer size of each active material 7 and 8 and the outer size of the current collector (corresponding to the length between the insides of the patterned holes). A series of larger patterned thermo-adhesive resin frame bodies 10 shown in FIG. 2 are manufactured by press punching or engraving blade rolls, Thomson blades or the like to provide holes 10a at regular intervals. The frame 10 is made of, for example, polypropylene or modified polypropylene and has a thickness of about 0.20 mm to 0.30.
mm.
【0008】次に、負極集電体6の上に熱接着性樹脂枠
体10を載せ、穴6aと10aとを合致させ、集電体6
と枠体10のパターンを一致させる。そして、この上か
ら正極集電体5を載せ、穴5aと10aとを合致させ、
集電体5と枠体10とのパターンを一致させる。次に、
枠体10が配置された部分の集電体5,6の外側から熱
板を押し当て、枠体10と集電体5,6とを熱溶着し
て、図3のような帯状に配列された多数の薄形電池を作
製する。次に、集電体5,6の区画穴5b,6bの連結
部(図1の5c,6c)をレーザー等でトリミングし、
隣接する薄形電池を電気的に分離する。その後、区画穴
5b,6bに沿って枠体10を切断し、図4のような帯
状に多数配列された薄形電池を作製した。なお、枠体1
0が集電体5,6の周縁より0.2mm以上はみ出るよ
うに、区画穴5a,6aの幅寸法を0.4mm以上と
し、区画穴5a,6aの中央部を彫刻刃ロール、トムソ
ン刃などで切断した。Next, the heat-adhesive resin frame 10 is placed on the negative electrode current collector 6, the holes 6a and 10a are aligned with each other, and the current collector 6
And the pattern of the frame body 10 are matched. Then, the positive electrode current collector 5 is placed on this, and the holes 5a and 10a are aligned with each other,
The patterns of the current collector 5 and the frame 10 are matched. next,
A heat plate is pressed from the outside of the current collectors 5 and 6 where the frame body 10 is arranged, the frame body 10 and the current collectors 5 and 6 are heat-welded, and arranged in a strip shape as shown in FIG. A large number of thin batteries are manufactured. Next, the connecting portions (5c, 6c in FIG. 1) of the partition holes 5b, 6b of the current collectors 5, 6 are trimmed with a laser or the like,
Electrically separate adjacent thin cells. After that, the frame body 10 was cut along the partition holes 5b and 6b to fabricate a thin battery in which a large number of strips were arranged as shown in FIG. The frame 1
The width dimension of the partition holes 5a, 6a is 0.4 mm or more so that 0 protrudes from the periphery of the current collectors 5, 6 by 0.2 mm or more. I cut it.
【0009】次に、図4の薄形電池11を図5のように
2個積層し、金型12により枠体10のはみ出た部分1
0aを加圧熱溶着して図8のような積層電池を作製し
た。なお、金型12は、中央部が凹み、この凹んだ部分
に弾力性を有し、熱伝導の少ない、例えばシリコン系ス
ポンジなどの部材12aが配置され、薄形電池の中央部
を加圧するようになっている。Next, two thin batteries 11 shown in FIG. 4 are laminated as shown in FIG. 5, and the portion 1 of the frame body 10 protruding by the die 12 is stacked.
0a was heat-pressed under pressure to produce a laminated battery as shown in FIG. The mold 12 has a recessed central portion, and a member 12a, such as a silicon-based sponge, having elasticity and little heat conduction is disposed in the recessed portion so as to press the central portion of the thin battery. It has become.
【0010】(実施例2)図6は他の実施例を示す組立
途中の薄形電池の断面図であり、実施例1と同一符号の
ものは同一名称のものを示す。図6において、正極活物
質7は、厚さ約0.135mmで約19.2mm四方の
形状をなし、約22mm四方の正極集電体5の上(図で
は下側)に配置されている。なお、正極集電体5の周縁
域幅約1mmに接着度を高めるためクロメ−ト処理を施
し、外表面には薄形電池を積層した場合の接触抵抗を低
減するためニッケルメッキを施している。負極活物質8
(リチウム箔)は、厚さ約0.028mmで約19.2
mm四方の形状をなし、内外面にニッケルメッキを施し
た負極集電体6上に配置されている。そして、負極活物
質8面を覆うように厚さ約0.040mmで約19.6
mm四方の固体電解質9が印刷され、電子線照射で硬化
されている。また、熱接着性樹脂枠体10は、厚さ約
0.30mmで外寸約22mm、内寸約20mm四方の
形状をなし、正極集電体5と負極集電体6の周縁域の間
に配置されている。そして、枠体10の内側に、正極活
物質7と負極活物質8と電解質9とが配置されている。
次に、図6の薄形電池を真空下に置き、上下側から加熱
押圧し枠体10を正極集電体5と負極集電体6の幅約1
mmの周縁域に接着すると共に、枠体10をさらに外側
に延伸させ外寸を約23mmとし、集電体の端から約
0.5mmはみ出させた。この時の薄形電池の厚さは各
集電体の厚さ0.02mmを含め約0.24mmとなっ
た。(Embodiment 2) FIG. 6 is a cross-sectional view of a thin battery which is in the process of assembly showing another embodiment, and the same reference numerals as those in Embodiment 1 indicate the same names. In FIG. 6, the positive electrode active material 7 has a thickness of about 0.135 mm, a shape of about 19.2 mm square, and is arranged on the positive electrode current collector 5 of about 22 mm square (lower side in the figure). It should be noted that the positive electrode current collector 5 is subjected to a chrome treatment to increase the degree of adhesion to the peripheral region width of about 1 mm, and the outer surface is nickel-plated to reduce the contact resistance when thin batteries are stacked. . Negative electrode active material 8
(Lithium foil) has a thickness of about 0.028 mm and a thickness of about 19.2.
It has a square shape of mm mm and is arranged on the negative electrode current collector 6 whose inner and outer surfaces are plated with nickel. The thickness of the anode active material 8 is about 0.040 mm and about 19.6.
A solid electrolyte 9 of mm mm is printed and cured by electron beam irradiation. The heat-adhesive resin frame 10 has a thickness of about 0.30 mm, an outer dimension of about 22 mm, and an inner dimension of about 20 mm, and has a square shape between the positive electrode current collector 5 and the negative electrode current collector 6. It is arranged. Then, the positive electrode active material 7, the negative electrode active material 8, and the electrolyte 9 are arranged inside the frame 10.
Next, the thin battery shown in FIG. 6 is placed under vacuum, and the frame body 10 is heated and pressed from above and below to set the frame body 10 to a width of the positive electrode current collector 5 and the negative electrode current collector 6 of about 1
In addition to adhering to the peripheral area of mm, the frame body 10 was further extended outward so that the outer dimension was about 23 mm, and the frame body 10 was protruded from the end of the current collector by about 0.5 mm. At this time, the thickness of the thin battery was about 0.24 mm including the thickness of each current collector of 0.02 mm.
【0011】この薄形電池を2個積層し、対向する集電
体面間に伝導性材料(例えば銀ペ−スト、半田ペ−ス
ト、カ−ボン樹脂、グラファイト樹脂など)を介在さ
せ、加熱押圧することではみ出した枠体10を熱溶着
し、2個の薄形電池を図8に示すように1個に一体化し
厚さ約0.5mmの積層電池を作製した。次に、この積
層電池を初期放電のため外部短絡し無負荷での電池電圧
を測定したところ約6.0V〜約5.9Vであった。こ
の電圧値は、IC素子動作電圧の上限値とも合致し、I
C素子使用機器に簡単に適用できる。Two thin batteries are laminated, a conductive material (for example, silver paste, solder paste, carbon resin, graphite resin, etc.) is interposed between the facing current collector surfaces, and heat pressing is performed. By doing so, the protruding frame body 10 was heat-welded, and two thin batteries were integrated into one as shown in FIG. 8 to produce a laminated battery having a thickness of about 0.5 mm. Next, this laminated battery was externally short-circuited for initial discharge and the battery voltage was measured without load, and it was about 6.0 V to about 5.9 V. This voltage value matches the upper limit of the IC element operating voltage, and I
It can be easily applied to equipment using C elements.
【0012】[0012]
【発明の効果】上記の如く本発明の積層電池は次に記載
する効果を奏する。 (1)請求項1によれば、薄形電池と略同じ幅寸法を有
し、厚さが薄形電池の重ね合わせた厚さと同じ寸法にで
きるので、ICカードやIDカードに十分に実装できる
積層電池を提供できる。 (2)請求項1によれば、突出した端子部がないので、
内部短絡を防止でき、外観的に優れた積層電池を提供で
きる。 (3)請求項1によれば、被覆部がなく集電体が露出し
ているので、放熱性能が優れ、機器と共にラミネートさ
れた場合の熱影響による電池材料の劣化が少なく、ま
た、体積エネルギー密度の向上した積層電池を提供でき
る。 (4)請求項2によれば、製造時の電池要素の熱損傷を
防止でき、製造作業が容易になる。 (5)請求項3によれば、集電体と枠体との位置合わせ
が容易になり、短絡が防止できる。また、薄形電池同士
が強固に一体化できる。As described above, the laminated battery of the present invention has the following effects. (1) According to claim 1, since it has substantially the same width dimension as the thin battery and the thickness can be made the same as the stacked thickness of the thin batteries, it can be sufficiently mounted on an IC card or an ID card. A laminated battery can be provided. (2) According to claim 1, since there is no protruding terminal portion,
An internal short circuit can be prevented, and a laminated battery having an excellent appearance can be provided. (3) According to the first aspect, since the current collector is exposed without the covering portion, the heat dissipation performance is excellent, the deterioration of the battery material due to the heat effect when laminated together with the device is small, and the volume energy is high. A laminated battery with improved density can be provided. (4) According to the second aspect, it is possible to prevent heat damage to the battery element at the time of manufacturing, which facilitates the manufacturing work. (5) According to claim 3, the current collector and the frame can be easily aligned with each other, and a short circuit can be prevented. Further, the thin batteries can be firmly integrated with each other.
【図1】本発明に係る帯状の正極集電体または負極集電
体を示す要部斜視図である。FIG. 1 is a perspective view of an essential part showing a strip-shaped positive electrode current collector or negative electrode current collector according to the present invention.
【図2】本発明に係る帯状の熱接着性樹脂枠体を示す要
部斜視図である。FIG. 2 is a perspective view of essential parts showing a band-shaped heat-adhesive resin frame body according to the present invention.
【図3】本発明に係る帯状に配列された薄形電池を示す
要部断面図である。FIG. 3 is a cross-sectional view of an essential part showing a thin battery arranged in a strip according to the present invention.
【図4】本発明の実施例1に係る薄形電池を示す斜視図
である。FIG. 4 is a perspective view showing a thin battery according to the first embodiment of the present invention.
【図5】本発明の実施例1に係る製造方法を示す説明図
である。FIG. 5 is an explanatory view showing the manufacturing method according to the first embodiment of the present invention.
【図6】本発明の実施例2に係る組立途中の薄形電池を
示す断面図である。FIG. 6 is a cross-sectional view showing a thin battery being assembled according to a second embodiment of the present invention.
【図7】図6の組立後の薄形電池を示す断面図である。7 is a cross-sectional view showing the thin battery after assembly in FIG.
【図8】本発明の積層電池を示す断面図である。FIG. 8 is a cross-sectional view showing a laminated battery of the present invention.
【図9】従来の薄形電池を示す斜視図である。FIG. 9 is a perspective view showing a conventional thin battery.
【図10】図9のA−A’断面図である。10 is a cross-sectional view taken along the line A-A ′ of FIG.
【図11】図9の電池を積層した従来の積層電池を示す
斜視図である。11 is a perspective view showing a conventional laminated battery in which the batteries of FIG. 9 are laminated.
5 正極集電体 6 負極集電体 7 正極活物質 8 負極活物質 9 固体電解質 10 熱接着性樹脂枠体 10a 枠体のはみ出た部分 5 Positive Electrode Current Collector 6 Negative Current Collector 7 Positive Electrode Active Material 8 Negative Electrode Active Material 9 Solid Electrolyte 10 Thermal Adhesive Resin Frame 10a Overhanging Part of Frame
Claims (3)
集電体(6)を相対し、その間に正極活物質(7)、固
体電解質(9)及び負極活物質(8)を配すると共に、
該集電体(5,6)の周縁域を熱接着性樹脂枠体(1
0)で互いに接着し、該周縁域の外側に該枠体(10)
をはみ出させた薄形電池を複数個積層し、前記枠体(1
0)のはみ出た部分(10a)同士を接着して一体化し
ていることを特徴とする積層電池。1. A positive electrode current collector (5) also serving as an outer package and a negative electrode current collector (6) are opposed to each other, and a positive electrode active material (7), a solid electrolyte (9) and a negative electrode active material (8) are placed therebetween. As well as
The peripheral region of the current collectors (5, 6) is connected to the heat-adhesive resin frame (1
0) are adhered to each other, and the frame (10) is provided outside the peripheral area.
A plurality of thin type batteries protruding from the above are stacked and the frame body (1
A laminated battery characterized in that the protruding portions (10a) of (0) are bonded and integrated with each other.
電体(5,6)からはみ出た部分(10a)の寸法が
0.2mm以上であることを特徴とする積層電池。2. The laminated battery according to claim 1, wherein the size of the portion (10a) protruding from the current collectors (5, 6) is 0.2 mm or more.
接着性樹脂枠体(10)を該集電体(5,6)に加圧接
着し、該枠体(10)を該集電体(5,6)の外側には
み出させた薄形電池を作製し、 次いで、複数の前記薄形電池を積層し、前記枠体(1
0)のはみ出た部分(10a)を互いに熱溶着して一体
化することを特徴とする請求項1記載の積層電池の製造
方法。3. A heat-adhesive resin frame (10) having the same outer dimensions as the current collectors (5, 6) is pressure-bonded to the current collectors (5, 6), and the frame ( 10) is made to protrude to the outside of the current collectors (5, 6) to produce a thin battery, and then a plurality of the thin batteries are stacked to form the frame (1
The method for manufacturing a laminated battery according to claim 1, wherein the protruding portions (10a) of (0) are heat-welded and integrated with each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20117794A JP3486968B2 (en) | 1994-08-26 | 1994-08-26 | Manufacturing method of laminated battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20117794A JP3486968B2 (en) | 1994-08-26 | 1994-08-26 | Manufacturing method of laminated battery |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0864213A true JPH0864213A (en) | 1996-03-08 |
JP3486968B2 JP3486968B2 (en) | 2004-01-13 |
Family
ID=16436639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20117794A Expired - Fee Related JP3486968B2 (en) | 1994-08-26 | 1994-08-26 | Manufacturing method of laminated battery |
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Country | Link |
---|---|
JP (1) | JP3486968B2 (en) |
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