JP2000195482A - Sheet-shaped battery - Google Patents
Sheet-shaped batteryInfo
- Publication number
- JP2000195482A JP2000195482A JP10368840A JP36884098A JP2000195482A JP 2000195482 A JP2000195482 A JP 2000195482A JP 10368840 A JP10368840 A JP 10368840A JP 36884098 A JP36884098 A JP 36884098A JP 2000195482 A JP2000195482 A JP 2000195482A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- battery
- power generation
- solid
- active material
- 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.)
- Withdrawn
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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＩＣカード、ＩＣ
ペーパー、電子手帳、薄型ノートパソコンなどのエレク
トロニクス小型薄型携帯機器に用いられる曲折性（フレ
キシビリティ）を備えたシート状電池に関する。TECHNICAL FIELD The present invention relates to an IC card, an IC
The present invention relates to a sheet-shaped battery having flexibility, which is used for small and thin electronic devices such as paper, electronic notebooks, and thin notebook personal computers.
【０００２】[0002]
【従来の技術】近年、ＩＣチップと薄型電池を内蔵した
ＩＣカードが例えば自動改札、自動料金収受、ＦＡ生産
ライン、入退場管理、健康管理、移動通信システムなど
の携帯用小型情報機器の用途において注目されている。
従来の円筒形電池や角型電池は形状的に厚くて、このよ
うな用途に使用されるＩＣカードの電源としては搭載で
きないため、小型で薄型の電池が注目されている。この
ような電池の候補として、極薄のコイン電池やシート状
の曲折可能（フレキシブル）なポリマー電池が期待され
ている。また、ノートパソコンや携帯電話などの携帯用
小型情報機器の分野においても、電池に高容量化・薄型
化・軽量化・フレキシブル化などが市場から求められる
ようになり、これに応える得る電池として、小型で高容
量のシート状の曲折可能なポリマー電池が期待されてい
る。コイン電池では発電セルの面積が充分に確保できな
いため、高容量化は困難であるが、シート状のポリマー
電池ではシートの面積を大きくすれば容易に高容量化が
実現できる。2. Description of the Related Art In recent years, IC cards with built-in IC chips and thin batteries have been used in portable small information devices such as automatic ticket gates, automatic toll collection, FA production lines, entrance / exit management, health management, and mobile communication systems. Attention has been paid.
Conventional cylindrical batteries and prismatic batteries are thick in shape and cannot be mounted as a power supply for IC cards used in such applications, so that small and thin batteries have attracted attention. Ultrathin coin batteries and sheet-like bendable (flexible) polymer batteries are expected as such battery candidates. Also, in the field of portable small information devices such as notebook computers and mobile phones, high-capacity, thinner, lighter, and more flexible batteries are required from the market. Small and high capacity sheet-like bendable polymer batteries are expected. It is difficult to increase the capacity of the coin battery because the area of the power generation cell cannot be sufficiently secured. However, in the case of a sheet-shaped polymer battery, the capacity can be easily increased by increasing the area of the sheet.
【０００３】ＩＣカードに極薄のコイン電池を搭載した
例があり、ＩＣカードの一部を切り欠いて電池収納室を
設け、そこにコイン電池を挿入することが一般に行われ
ている（）。[0003] There is an example in which an ultra-thin coin battery is mounted on an IC card, and it is generally practiced to cut out a part of the IC card to provide a battery accommodating chamber and insert a coin battery therein.
【０００４】またＩＣカードの中間枠体内に、薄型電池
を内蔵したものとして特開平９−８２３０２号がある
（）。その断面を図８に示す。この例では、屈曲また
はねじれ時の応力が薄型電池２に加わらないように、中
間枠外及び又は外装体の薄型電池配置個所以外の部分に
切り込み、破線、凹部または肉薄部など優先的に曲折さ
れる部分８を設けることにより電池２への損傷を回避で
きるとしている。Japanese Patent Application Laid-Open No. 9-82302 discloses an IC card in which a thin battery is built in an intermediate frame. The cross section is shown in FIG. In this example, the thin battery 2 is cut out of the intermediate frame and / or a portion other than the thin battery placement portion of the outer package, and is preferentially bent such as a broken line, a concave portion, or a thin portion so that stress at the time of bending or twisting is not applied to the thin battery 2. It is stated that by providing the portion 8, damage to the battery 2 can be avoided.
【０００５】また、ＩＣカード本体部の少なくとも一方
のカード面にシート状の固体ポリマー二次電池を配置し
たものとして、特開平５−１６６０１９号がある
（）。[0005] Japanese Patent Application Laid-Open No. Hei 5-16619 discloses a structure in which a sheet-shaped solid polymer secondary battery is disposed on at least one card surface of an IC card main body.
【０００６】この例では、カード面の５０％から１００
％のサイズの固体ポリマー電池をカードの片面もしくは
両面に貼り付けることを特徴としている。In this example, from 50% of the card surface to 100%
% Solid polymer battery is attached to one or both sides of the card.
【０００７】また、フレキシブル配線基板上にシート状
の矩形電池を搭載した例として、特開平９−２６０８０
３号があり（）、電池装着型配線基板は全体的にフレ
キシビリティであるため、たとえば折り曲げて電子機器
類に組み込むことができるとしている。As an example of mounting a sheet-shaped rectangular battery on a flexible wiring board, see Japanese Patent Application Laid-Open No. 9-260080.
There is No. 3 (), which states that the battery-mounted wiring board is flexible as a whole, and can be folded and incorporated in electronic devices, for example.
【０００８】また、機器の壁面や空いたスペースに二次
電池を貼り付けて機器のコンパクト化や軽量化を図るた
めに、フレキシブルなシート状二次電池を用いることな
く、複数個の単位電池を組電池化したものとして、特開
平１０−２１８９６号がある（）。In order to reduce the size and weight of the device by attaching a secondary battery to the wall surface or the empty space of the device, a plurality of unit batteries are used without using a flexible sheet-shaped secondary battery. Japanese Patent Application Laid-Open No. Hei 10-21896 discloses a battery pack.
【０００９】コイン電池は電解質が液体であるため、堅
牢な剛体の電池筐体を安全上備える必要があり、極薄の
コイン電池といっても電池の厚みには限界がある。[0009] Since the electrolyte of a coin battery is a liquid, it is necessary to provide a rigid and rigid battery housing for safety, and even if it is an ultra-thin coin battery, the thickness of the battery is limited.
【００１０】またポリマー電池は、電解質がゲル状のポ
リマーから成る発電セル１個をアルミラミネートフイル
ムでケーシングし、水分などの外部影響を受けないよう
に気密且つ減圧状態とした曲折可能な電池として知られ
ている。[0010] A polymer battery is known as a bendable battery in which one power generation cell made of a polymer having a gel electrolyte is sealed with an aluminum laminate film, and is airtight and depressurized so as not to be affected by external factors such as moisture. Have been.
【００１１】[0011]
【発明が解決しようとする課題】しかしながら、上記
のように、ＩＣカードに極薄のコイン電池を挿入したよ
うな例では、外装に強度を要するため、電池の厚みが厚
くなる傾向があり、カードの厚みが電池の厚みで制限さ
れ、カードの厚みを電池の厚みより薄くできないという
問題があった。さらに、ＩＣカードの高機能化と長時間
使用に伴い、電池の高容量化が求められる市場要求に対
して、コイン電池は期待薄である。However, in the case where an ultra-thin coin battery is inserted into an IC card as described above, the external battery requires strength, and the battery tends to be thick. Is limited by the thickness of the battery, and there is a problem that the thickness of the card cannot be made smaller than the thickness of the battery. Furthermore, coin batteries are not expected to meet the market demands for higher capacity batteries as IC cards become more sophisticated and used for longer periods.
【００１２】また、上記のように、ＩＣカードに薄型
電池２を１個だけ挿入し、カード１の繰り返しの折り曲
げ使用に対し、薄型電池２が曲折して電池の損傷や電池
特性の信頼性と安定性を損なわないように、薄型電池の
配置個所以外の部分が曲折可能となる凹部８を１個所設
けた構造であっても、この凹部８のみがフレキシブルで
あって、カード全面において均一なフレキシビリティー
性を持たせることはできないという問題があった。Further, as described above, only one thin battery 2 is inserted into the IC card, and the thin battery 2 is bent and the reliability of battery damage and battery characteristics is improved in response to repeated use of the card 1. Even if the structure is provided with one concave portion 8 where the portion other than the thin battery arrangement portion is bendable so as not to impair the stability, only the concave portion 8 is flexible and a uniform flexure is provided over the entire surface of the card. There was a problem that it was not possible to have the flexibility.
【００１３】また、上記のように、ＩＣカードにシー
ト状の固体ポリマー電池をカード面の５０％から１００
％の大きさで貼り付けた構造では、実使用時における不
確定なカードの繰り返しの折り曲げ使用に対し、固体ポ
リマー電池が曲折することで電池内部の電極活物質や固
体電解質にクラックが入るなどの損傷が発生し、このよ
うな損傷によって電池特性の信頼性や安定性を損なう恐
れがあった。すなわち、発電セルにフレキシビリティ性
があっても、急激な折り曲げなどの繰り返し使用の条件
によっては、発電セルにクラックなどが生じ、電池の充
放電作用において、発電セル内のリチウムイオンの移動
や電子の移動に不均一性が生じて、電池の信頼性を確保
することが困難であった。Further, as described above, a sheet-like solid polymer battery is provided on an IC card in an amount of 50% to 100% of the card surface.
In the structure where the solid polymer battery is attached in the size of%, the solid polymer battery bends and the electrode active material and the solid electrolyte inside the battery are cracked, etc. Damage may occur, and such damage may impair reliability and stability of battery characteristics. That is, even if the power generation cell has flexibility, cracks and the like may occur in the power generation cell depending on the conditions of repeated use such as sharp bending, and during the charge / discharge action of the battery, the movement of lithium ions in the power generation cell or the electron The movement of the battery caused non-uniformity, and it was difficult to ensure the reliability of the battery.
【００１４】フレキシブルな固体ポリマー電池が折り曲
げ使用に問題があることは、上記にも上げられてい
る。上記ではフレキシブル性が無い組電池で、本発明
とは目的が異なる。The fact that flexible solid polymer batteries have problems in use in bending is also mentioned above. The above is an assembled battery having no flexibility, and has a different purpose from the present invention.
【００１５】本発明の課題は、機器の薄型化と電源の高
容量化にふさわしい、薄くて大面積のシート状の固体電
池において、機器への搭載や機器の繰り返しの折り曲げ
使用に対し、固体電池に機械的ストレスを加えることな
く、電池に高い信頼性を付与するとともに、比較的均一
なフレキシビリティ性を付与することにある。また、本
発明の課題は、発電セルの少なくとも一つの要素が固体
で且つ無機系のシート状の剛体電池において、如何にし
てフレキシビリティ性を付与するかにある。An object of the present invention is to provide a thin and large-area sheet-shaped solid battery suitable for thinning of a device and a high capacity of a power supply. It is to provide a battery with high reliability and relatively uniform flexibility without applying a mechanical stress to the battery. Another object of the present invention is to provide an inorganic sheet-shaped rigid battery in which at least one element of the power generation cell is solid and how to impart flexibility.
【００１６】[0016]
【課題を解決するための手段】本発明のシート状電池で
は、曲折性を有するシート上に、正極活物質、固体電解
質、負極活物質を層状に重ねた発電要素から成る固体発
電セルを碁盤目様に複数個配置した。In the sheet-shaped battery of the present invention, a solid-state power generation cell comprising a power generation element in which a positive electrode active material, a solid electrolyte, and a negative electrode active material are layered on a sheet having a bendability is cross-cut. A plurality were arranged in the same manner.
【００１７】また、上記電池では、前記固体発電セルを
配置した前記シートが集電作用を有することが望まし
い。In the above battery, it is preferable that the sheet on which the solid-state power generation cells are arranged has a current collecting function.
【００１８】また、上記電池では、前記複数の固体発電
セルの外周部が弾性体及び／又は密閉気体で覆われてい
ることが望ましい。In the above battery, it is preferable that the outer peripheral portions of the plurality of solid-state power generation cells are covered with an elastic body and / or a closed gas.
【００１９】さらに、上記電池では、前記複数の固体発
電セルの一部が機能性電子回路や機能性部品で置き換え
られてもよい。Further, in the battery, a part of the plurality of solid-state power generation cells may be replaced with a functional electronic circuit or a functional component.
【００２０】[0020]
【発明の実施の形態】以下、本発明の実施形態を添付図
面に基づき説明する。図１は本発明に係るシート状電池
の一実施形態を示す外観図であり、図２はその断面図で
ある。図２に示すように、発電セル２は、少なくとも正
極活物質２ａ、固体電解質２ｂ、負極活物質２ｃを層状
に重ねた構造である。また、シート状電池１は、図１及
び図２に示すように、碁盤目様に複数個を配置し、その
位置を２（１１〜ｉｊ〜ｍｎ）などで表すことができ
る。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an external view showing an embodiment of a sheet-shaped battery according to the present invention, and FIG. 2 is a sectional view thereof. As shown in FIG. 2, the power generation cell 2 has a structure in which at least a positive electrode active material 2a, a solid electrolyte 2b, and a negative electrode active material 2c are layered. Further, as shown in FIGS. 1 and 2, a plurality of sheet batteries 1 are arranged in a grid pattern, and their positions can be represented by 2 (11 to ij to mn).
【００２１】発電セル２の正極活物質２ａ、負極活物質
２ｃ、及び固体電解質２ｂの材料としては、例えばリチ
ウムコバルト酸化物、リチウムニッケル酸化物、リチウ
ムマンガン酸化物、リチウムバナジウム酸化物、二酸化
マンガン、金属リチウム、リチウム合金、黒鉛やコーク
スなどの炭素系材料、五酸化ニオブ、リチウムチタン酸
化物、リチウム遷移金属複合窒化物、ＰＥＯ（ポリエチ
レンオキシド）、りん酸リチウム、などが挙げられる。
これらに、カーボン、アセチレンブラックなどの電子電
導材や高分子バインダーやリチウム塩などの添加材を混
合して用いてもよい。The materials of the positive electrode active material 2a, the negative electrode active material 2c, and the solid electrolyte 2b of the power generation cell 2 include, for example, lithium cobalt oxide, lithium nickel oxide, lithium manganese oxide, lithium vanadium oxide, manganese dioxide, Examples include lithium metal, lithium alloy, carbon-based materials such as graphite and coke, niobium pentoxide, lithium titanium oxide, lithium transition metal composite nitride, PEO (polyethylene oxide), and lithium phosphate.
An electron conductive material such as carbon and acetylene black, and an additive such as a polymer binder and a lithium salt may be mixed and used.
【００２２】ベースシート３やカバーシート４として
は、塩化ビニール樹脂、ポリエステル樹脂、生分解プラ
スチック、ＡＢＳ樹脂、再生紙などが挙げられる。Examples of the base sheet 3 and the cover sheet 4 include vinyl chloride resin, polyester resin, biodegradable plastic, ABS resin, and recycled paper.
【００２３】ここで、ベースシート３とオーバーシート
４は、個々の発電セル２の正極あるいは負極活物質２
ａ、２ｃに対し、共通の集電体としての作用を有するよ
うに、アルミニウムやニッケルや鋼材料からなる金属シ
ートが利用できる。また、ベースシート３とオーバーシ
ート４には、発電セル２の反対側である外面部に電気的
絶縁性や装飾性を持たせるため、絶縁性のポリエチレン
テレフタレート（ＰＥＴ）やポリエチレン（ＰＥ）など
で金属シートをラミネートしたラミネートフイルムなど
が効果的に使用できる。Here, the base sheet 3 and the oversheet 4 correspond to the positive or negative electrode active material 2 of each power generation cell 2.
A metal sheet made of aluminum, nickel, or a steel material can be used so as to function as a common current collector for a and 2c. The base sheet 3 and the over sheet 4 are made of insulating polyethylene terephthalate (PET), polyethylene (PE), or the like in order to provide electrical insulation and decoration on the outer surface opposite to the power generation cell 2. A laminated film obtained by laminating a metal sheet can be used effectively.
【００２４】各々の電池の外周部に充填する曲折性を付
与する物質５としては、例えばシリコン、ウレタン、フ
ッ素、エポキシ、ポリイミド、ポリアミドなどの樹脂や
ゴムが使用できる。As the material 5 for imparting the bendability to be filled in the outer peripheral portion of each battery, for example, a resin or rubber such as silicon, urethane, fluorine, epoxy, polyimide and polyamide can be used.
【００２５】固体発電セル２を複数個準備し、図１に示
すように、ベースシート３上に一定間隔の隙間５を持た
せて碁盤目様に配置し、次にオーバーシート４をベース
シート３に合わせて、サンドイッチ形態のシート状電池
を得る。ここで、ベースシート３及びオーバーシート４
の発電セル２側のシート面を金属などの導電性とするこ
とで、集電体としての作用あるいは複数個の発電セルを
並列接続し充放電容量を増す電気配線としての作用など
を持たせることができる。A plurality of solid-state power generation cells 2 are prepared, and are arranged in a grid on the base sheet 3 with a certain gap 5 as shown in FIG. To obtain a sandwich-shaped sheet-shaped battery. Here, the base sheet 3 and the over sheet 4
The sheet surface on the side of the power generation cell 2 is made of a conductive material such as a metal, so as to have a function as a current collector or a function as an electric wiring for increasing a charge / discharge capacity by connecting a plurality of power generation cells in parallel. Can be.
【００２６】ベースシート３とオーバーシート４は曲折
性を備えており、且つ発電セル２間に隙間があって、し
かもこの隙間がシートの曲折性を極端に損なわない弾性
体及び／又は密閉気体で覆われていれば、たとえ個々の
発電セル２が剛体であっても、ベースシート３とオーバ
ーシート４で複数個の発電セル２をサンドイッチした構
成のシート状電池が曲折性を備えることは明らかであ
る。The base sheet 3 and the overseat 4 have bendability, and there is a gap between the power generation cells 2, and this gap is made of an elastic body and / or a sealing gas which does not extremely impair the bendability of the sheet. If it is covered, even if each power generation cell 2 is a rigid body, it is clear that a sheet-like battery having a configuration in which a plurality of power generation cells 2 are sandwiched between the base sheet 3 and the oversheet 4 has a bendability. is there.
【００２７】図３は、本発明の他のシート状電池を示す
図である。正極集電体２ｄ、正極活物質２ａ、固体電解
質２ｂ、負極活物質２ｃ、負極集電体２ｅを層状に重ね
た構造である。集電体２ｄ、２ｅを有した方が活物質２
ａ、２ｃと集電体２ｄ、２ｅとの境界においてより安定
した通電性能を確保できる。FIG. 3 is a diagram showing another sheet-shaped battery of the present invention. It has a structure in which a positive electrode current collector 2d, a positive electrode active material 2a, a solid electrolyte 2b, a negative electrode active material 2c, and a negative electrode current collector 2e are layered. The active material 2 having the current collectors 2d and 2e
More stable energization performance can be secured at the boundary between the current collectors 2a and 2c and the current collectors 2d and 2e.
【００２８】正極集電体２ｄや負極集電体２ｅとして
は、アルミニウム、ステンレス、ニッケル、などの金属
箔が挙げられる。Examples of the positive electrode current collector 2d and the negative electrode current collector 2e include metal foils of aluminum, stainless steel, nickel and the like.
【００２９】図４は、本発明の他のシート状電池を示す
図である。２個以上の固体発電セル２ｘ、２ｙなどを重
ねることで、発電電圧を高めることができる。また、本
発明のシート状電池２は、特に剛体の場合に効果的であ
るが、柔軟な場合にも有効である。前者の例として発電
セル２が無機系材料をべースとした全固体電池セルなど
があり、後者の例として発電セル２が有機系材料をベー
スとしたポリマー電池セルなどが挙げられる。FIG. 4 is a view showing another sheet-shaped battery of the present invention. The power generation voltage can be increased by stacking two or more solid power generation cells 2x, 2y, and the like. Further, the sheet-shaped battery 2 of the present invention is particularly effective in the case of a rigid body, but is also effective in the case of a flexible body. An example of the former is an all-solid-state battery cell in which the power generation cell 2 is based on an inorganic material, and an example of the latter is a polymer battery cell in which the power generation cell 2 is based on an organic material.
【００３０】剛体電池、例えば発電セルが無機系材料を
ベースとした全固体電池の場合、降伏点を超えて曲折さ
せると破壊する。また、発電セルが有機系の固体電解質
から成る全固体電池の場合も、降伏点を超えて曲折させ
ると破壊する。柔軟電池、ゲル状の固体電解質から成る
ポリマー電池の場合、頻繁に限界を超えて曲折させると
信頼性を損なう恐れがある。In the case of a rigid battery, for example, an all-solid battery in which the power generation cell is based on an inorganic material, the battery is broken when bent beyond the yield point. Also, in the case where the power generation cell is an all-solid-state battery made of an organic solid electrolyte, the cell is broken when bent beyond the yield point. In the case of a flexible battery or a polymer battery comprising a gel-like solid electrolyte, frequent bending beyond the limit may impair reliability.
【００３１】また、充填材料に代わって、電池の外周部
が密閉気体、例えば充満気体、減圧気体、あるいは真空
状態などでも構わない。Instead of the filling material, the outer periphery of the battery may be a sealed gas, for example, a filled gas, a reduced pressure gas, or a vacuum state.
【００３２】図５は本発明の他のシート状電池を示す図
である。弾性体や密閉気体に代わって、比較的に厚いベ
ースシート３やオーバーシート４を使って、個々の電池
２の外周部に凹部または肉薄部８など優先的に曲折され
る部分を設けることにより電池への損傷を回避できる。FIG. 5 is a view showing another sheet-shaped battery of the present invention. By using a relatively thick base sheet 3 or over sheet 4 in place of an elastic body or a closed gas and providing a preferentially bent portion such as a concave portion or a thin portion 8 on the outer peripheral portion of each battery 2. To avoid damage.
【００３３】また、ベースシート３とオーバーシート４
のいずれかあるいはどちらも曲折性を備えていない場合
であっても、各々の発電セル２の少なくとも外周部に対
応するシート部分に、図５に示すように、切り込み、破
線、又は凹部８などを発電セル間に付与することで、ベ
ースシート３とオーバーシート４で複数個の発電セル２
をサンドイッチした構成のシート状電池が曲折性を備え
ることは（従来例からも）明らかである。The base sheet 3 and the over sheet 4
Even if either or both of the power generation cells 2 do not have a bendability, as shown in FIG. 5, a cut, a broken line, a concave portion 8 or the like is formed on a sheet portion corresponding to at least the outer peripheral portion of each power generation cell 2. By providing between the power generation cells, a plurality of power generation cells 2
It is clear (from the conventional example) that the sheet-like battery having the configuration in which the is sandwiched has a bendability.
【００３４】図６及び図７は、本発明の他のシート状電
池を示す図である。このシート状電池では、複数個の固
体発電セル２の一部をＩＣ（集積回路）モジュール７で
置き換えた構成を取る。発電セル２の一部を、機能性電
子回路や部品７で置き換えることにより、発電容量をほ
ぼ維持したまま、機器としての機能を発現することがで
きるので、高集積化した電池搭載のシート状機器に生ま
れ変わる。機能性電子回路や機能性電子部品７の所有面
積が大きい場合、あるいは数量が多い場合、複数個の発
電セル２に置き換わって、シート面積を占有すること
は、言うまでもない。このようなシート状電池において
も、ＩＣ（集積回路）モジュールやアンテナ用コイルな
どの機能性電子回路や部品７が剛体であっても、発電セ
ルとこれら機能部品の周囲が弾性体及び／又は密閉気体
５であり、且つベースシート３やカバーシート４がフレ
キシビリティ性を備えておれば、シート面において均一
なフレキシビリティ性を保持することができる。FIGS. 6 and 7 show another sheet-shaped battery of the present invention. This sheet-shaped battery has a configuration in which a part of the plurality of solid-state power generation cells 2 is replaced with an IC (integrated circuit) module 7. By replacing a part of the power generation cell 2 with a functional electronic circuit or component 7, the function as a device can be exhibited while the power generation capacity is almost maintained. Reborn. When the possessed area of the functional electronic circuit or the functional electronic component 7 is large or the number is large, it is needless to say that the seat is occupied by the plurality of power generation cells 2. Even in such a sheet-shaped battery, even if functional electronic circuits and components 7 such as an IC (integrated circuit) module and an antenna coil are rigid, the periphery of the power generation cell and these functional components is elastic and / or sealed. If the gas 5 and the base sheet 3 and the cover sheet 4 have flexibility, uniform flexibility can be maintained on the sheet surface.
【００３５】また上記したシート状電池と同様にこのシ
ート状電池も曲折性を備えていることは明らかである。It is clear that this sheet-shaped battery also has bendability, like the above-mentioned sheet-shaped battery.
【００３６】[0036]
【実施例】＜実施例１＞カードサイズの曲折可能なシー
ト状電池を作製した。このシート状電池に用いた発電セ
ルは無機系材料から成る剛体発電セルで、充分に固く折
り曲げ不可であった。大きさは１８ｍｍ×１５ｍｍ、厚
みが０．５ｍｍのものを１２枚作製した。また、比較用
として、大きさが８１ｍｍ×４９ｍｍ、厚みが０．５ｍ
ｍの発電セルを１枚作製した。<Example 1> A bendable sheet-shaped battery having a card size was manufactured. The power generation cell used for this sheet-shaped battery was a rigid power generation cell made of an inorganic material and was sufficiently hard and could not be bent. Twelve sheets having a size of 18 mm × 15 mm and a thickness of 0.5 mm were produced. For comparison, the size is 81 mm × 49 mm and the thickness is 0.5 m.
m power generation cell was produced.
【００３７】次にベースシート及びカバーシートとし
て、ポリエチレン／アルミニウムの構成から成る大きさ
が８５×５３ｍｍのラミネートフィルムを各々２枚用意
した。Next, as the base sheet and the cover sheet, two laminated films each composed of polyethylene / aluminum and having a size of 85 × 53 mm were prepared.
【００３８】ベースシートのアルミニウム面上に、上記
１２枚の発電セル（１８ｍｍ、１５ｍｍ）をマトリック
ス（４個、３個）状に配置したが、その際、カードの８
５ｍｍ方向において発電セル間を３ｍｍ程空けると共
に、両端部を２ｍｍ程開け、他方カードの５３ｍｍ方向
において発電セル間及び両端部をそれぞれ２ｍｍ開け
た。これら発電セル間及び両端部の部分に、シリコン樹
脂を充填し、カバーシートのアルミニウム面を発電セル
側にベースシートに揃えてサンドイッチ状に挟み込ん
だ。この場合、ベースシート及びカバーシートのそれぞ
れのアルミニウム面は、個々の発電セルの充放電容量を
増す電気接続の役割も担うことができた。The above-mentioned twelve power generation cells (18 mm, 15 mm) were arranged in a matrix (4, 3) on the aluminum surface of the base sheet.
In the 5 mm direction, the distance between the power generation cells was about 3 mm, and both ends were opened by about 2 mm. On the other hand, in the 53 mm direction of the card, the distance between the power generation cells and both ends were both opened by 2 mm. Silicon resin was filled between the power generation cells and at both ends, and the aluminum surface of the cover sheet was aligned with the base sheet on the power generation cell side and sandwiched in a sandwich shape. In this case, the respective aluminum surfaces of the base sheet and the cover sheet could also play the role of electrical connection for increasing the charge / discharge capacity of each power generation cell.
【００３９】比較用のシート状電池として、比較用の発
電セル１枚をベースシートのアルミニウム面上に端部２
ｍｍを開けて配置し、この両端部にシリコン樹脂を充填
し、カバーシートのアルミニウム面を発電セル側にベー
スシートに揃えてサンドイッチ状に挟み込んだ。As a sheet battery for comparison, one power generation cell for comparison was placed at the end 2 on the aluminum surface of the base sheet.
mm, the both ends were filled with silicone resin, and the aluminum surface of the cover sheet was aligned with the base sheet on the power generation cell side and sandwiched in a sandwich shape.
【００４０】このようにして製作した二種類のシート状
電池について、カードの８５ｍｍ方向の両端部を固定し
て、中央部が５ｍｍ程たわむように２０回の折り曲げ試
験を行った。その結果、比較用のシート状電池は数回で
中央部にクラックが入って外観上破壊したが、剛体発電
セルを碁盤目様に配置したシート状電池は２０回繰り返
しても電池特性に変化が認められなかった。With respect to the two kinds of sheet-shaped batteries manufactured in this manner, both ends of the card in the 85 mm direction were fixed, and a bending test was performed 20 times so that the center portion was bent by about 5 mm. As a result, the sheet-shaped battery for comparison cracked at the center part several times and broke in appearance, but the sheet-shaped battery in which the rigid power generation cells were arranged in a grid pattern showed a change in the battery characteristics even after repeating 20 times. I was not able to admit.
【００４１】＜実施例２＞カードサイズの曲折可能なシ
ート状電池を作製した。このシート状電池に用いた発電
セルは無機系材料と有機系材料から成る柔軟発電セル
で、折り曲げ可能であった。大きさは１８ｍｍ×１５ｍ
ｍ、厚みが０．５ｍｍのものを１２枚作製した。また、
比較用として、大きさが８１ｍｍ×４９ｍｍ、厚みが
０．５ｍｍの発電セルを１枚作製した。Example 2 A bendable sheet-shaped battery having a card size was manufactured. The power generation cell used for this sheet-shaped battery was a flexible power generation cell made of an inorganic material and an organic material, and was bendable. The size is 18mm x 15m
Twelve sheets having a thickness of 0.5 mm and a thickness of 0.5 mm were produced. Also,
For comparison, one power generation cell having a size of 81 mm × 49 mm and a thickness of 0.5 mm was manufactured.
【００４２】次にベースシート及びカバーシートとし
て、ポリエチレン／アルミニウムの構成から成る大きさ
が８５×５３ｍｍのラミネートフィルムを各々２枚用意
した。Next, as the base sheet and the cover sheet, two laminated films each composed of polyethylene / aluminum and having a size of 85 × 53 mm were prepared.
【００４３】ベースシートのアルミニウム面上に、前記
１２枚の発電セル（１８ｍｍ、１５ｍｍ）をマトリック
ス（４個、３個）状に配置したが、その際、カードの８
５ｍｍ方向において発電セル間を３ｍｍ程空け両端部を
２ｍｍ程開け、他方カードの５３ｍｍ方向において発電
セル間及び両端部をそれぞれ２ｍｍ程開けた。これら発
電セル間及び両端部の部分に、シリコン樹脂を充填し、
カバーシートのアルミニウム面を発電セル側にベースシ
ートに揃えてサンドイッチ状に挟み込んだ。この場合、
ベースシート及びカバーシートのそれぞれのアルミニウ
ム面は、個々の発電セルの充放電容量を増す電気接続の
役割も担うことができた。比較用のシート状電池とし
て、上記比較用の発電セル１枚をベースシートのアルミ
ニウム面上に端部２ｍｍを開けて配置し、この両端部に
シリコン樹脂を充填し、カバーシートのアルミニウム面
を発電セル側にベースシートに揃えてサンドイッチ状に
挟み込んだ。The 12 power generation cells (18 mm, 15 mm) were arranged in a matrix (4, 3) on the aluminum surface of the base sheet.
In the 5 mm direction, the gap between the power generation cells was about 3 mm, and both ends were opened by about 2 mm. On the other hand, in the 53 mm direction of the card, the distance between the power generation cells and both ends were about 2 mm. Silicon resin is filled between these power generation cells and at both ends,
The aluminum surface of the cover sheet was aligned with the base sheet on the power generation cell side and sandwiched in a sandwich shape. in this case,
Each aluminum surface of the base sheet and the cover sheet could also serve as an electrical connection to increase the charge and discharge capacity of the individual power generation cells. As a sheet-shaped battery for comparison, one power generation cell for comparison was placed on the aluminum surface of the base sheet with an end 2 mm open, and both ends were filled with silicone resin to generate electricity on the aluminum surface of the cover sheet. It was sandwiched in the form of a sandwich aligned with the base sheet on the cell side.
【００４４】このようにして製作した二種類のシート状
電池について、カードの８５ｍｍ方向の両端部を固定し
て、中央部が１０ｍｍ程たわむように２０回の折り曲げ
試験を行った。その結果、比較用のシート状電池は電池
特性に変化が見られ、これ以上の折り曲げ試験は不可能
であったが、柔軟発電セルを碁盤目様に配置したシート
状電池は２０回繰り返しても電池特性に変化が認められ
なかった。With respect to the two kinds of sheet-shaped batteries manufactured in this manner, both ends of the card in the 85 mm direction were fixed, and a bending test was performed 20 times so that the center portion was bent by about 10 mm. As a result, the sheet battery for comparison showed a change in battery characteristics, and no further bending test was possible, but the sheet battery in which the flexible power generation cells were arranged in a grid pattern was repeated 20 times. No change was observed in the battery characteristics.
【００４５】[0045]
【発明の効果】以上のように、本発明のシート状電池で
は、曲折性を有するシート上に、正極活物質、固体電解
質、負極活物質を層状に重ねた発電要素から成る固体発
電セルを碁盤目様に複数個配置したことから、発電セル
の機械的ストレスを防止（もしくは緩和）してシート状
電池に高い信頼性を付与するとともに、発電セルがたと
え剛体であってもシート状電池に比較的均一なフレキシ
ビリティ性を付与させ発電セルの形状変化を防止してそ
の信頼性を高めた。As described above, according to the sheet-shaped battery of the present invention, a solid-state power generation cell comprising a power generation element in which a positive electrode active material, a solid electrolyte, and a negative electrode active material are layered on a sheet having a bendability is formed on a go board. By arranging a plurality of eyes, the mechanical stress of the power generation cell is prevented (or reduced) to give high reliability to the sheet battery, and even if the power generation cell is rigid, it can be compared with the sheet battery. The uniformity of the flexibility of the power generation cell was prevented, and the reliability of the power generation cell was improved by preventing the shape change.
【図１】本発明のシート状電池の概念を示す図である。FIG. 1 is a view showing the concept of a sheet-shaped battery of the present invention.
【図２】本発明のシート状電池の断面を示す図である。FIG. 2 is a view showing a cross section of the sheet-shaped battery of the present invention.
【図３】本発明の他のシート状電池を示す断面図であ
る。FIG. 3 is a cross-sectional view showing another sheet-shaped battery of the present invention.
【図４】本発明の他のシート状電池を示す断面図であ
る。FIG. 4 is a sectional view showing another sheet-shaped battery of the present invention.
【図５】本発明の他のシート状電池を示す断面図であ
る。FIG. 5 is a cross-sectional view showing another sheet-shaped battery of the present invention.
【図６】本発明の他のシート状電池を示す斜視図であ
る。FIG. 6 is a perspective view showing another sheet-shaped battery of the present invention.
【図７】本発明の他のシート状電池を示す断面図であ
る。FIG. 7 is a cross-sectional view showing another sheet-shaped battery of the present invention.
【図８】従来のシート状電池を示す図である。FIG. 8 is a view showing a conventional sheet-shaped battery.
３‥‥‥ベースシート、４‥‥‥カバーシート、５‥‥
‥弾性体及び／又は密閉気体、６‥‥‥シート外枠もし
くはシール材６3 ‥‥‥ base sheet, 4 ‥‥‥ cover sheet, 5 ‥‥
{Elastic and / or closed gas, 6} Seat outer frame or sealing material 6
───────────────────────────────────────────────────── フロントページの続き (72)発明者 三島 洋光 京都府相楽郡精華町光台３丁目５番地 京 セラ株式会社中央研究所内 (72)発明者 馬込 伸二 京都府相楽郡精華町光台３丁目５番地 京 セラ株式会社中央研究所内 (72)発明者 大崎 誠 京都府相楽郡精華町光台３丁目５番地 京 セラ株式会社中央研究所内 Ｆターム(参考） 5H020 AA06 AS13 CC23 CC41 DD06 ──────────────────────────────────────────────────の Continuing from the front page (72) Inventor Yoko Mishima 3-5-chome, Seika-cho, Soraku-gun, Kyoto Prefecture Inside the Central Research Laboratory, Kyocera Corporation (72) Inventor Shinji Magome 3-chome, Seika-cho, Soraku-gun, Kyoto 5 Kyocera Corporation Central Research Laboratory (72) Inventor Makoto Osaki 3-5-1 Koukadai, Seika-cho, Soraku-gun, Kyoto F-term in Kyocera Corporation Central Research Laboratory 5H020 AA06 AS13 CC23 CC41 CC41 DD06
Claims (4)
質、固体電解質、負極活物質を層状に重ねた発電要素か
ら成る固体発電セルを碁盤目様に複数個配置したことを
特徴とするシート状電池。1. A sheet characterized by arranging a plurality of solid-state power generation cells each composed of a power generation element in which a positive electrode active material, a solid electrolyte, and a negative electrode active material are layered on a bendable sheet. Battery.
が集電作用を有することを特徴とする請求項１に記載の
シート状電池。2. The sheet-shaped battery according to claim 1, wherein the sheet on which the solid-state power generation cells are arranged has a current collecting function.
体及び／又は密閉気体で覆われていることを特徴とする
請求項２に記載のシート状電池。3. The sheet-shaped battery according to claim 2, wherein outer peripheral portions of the plurality of solid-state power generation cells are covered with an elastic body and / or a closed gas.
電子回路や機能性部品で置き換えられていることを特徴
とする請求項１に記載のシート状電池。4. The sheet-shaped battery according to claim 1, wherein a part of the plurality of solid-state power generation cells is replaced with a functional electronic circuit or a functional component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10368840A JP2000195482A (en) | 1998-12-25 | 1998-12-25 | Sheet-shaped battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10368840A JP2000195482A (en) | 1998-12-25 | 1998-12-25 | Sheet-shaped battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000195482A true JP2000195482A (en) | 2000-07-14 |
Family
ID=18492898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10368840A Withdrawn JP2000195482A (en) | 1998-12-25 | 1998-12-25 | Sheet-shaped battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000195482A (en) |
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| EP1460701A2 (en) * | 2003-03-20 | 2004-09-22 | Matsushita Electric Industrial Co., Ltd. | An integrated battery |
| JP2004303715A (en) * | 2003-03-20 | 2004-10-28 | Matsushita Electric Ind Co Ltd | Battery |
| EP1460701A3 (en) * | 2003-03-20 | 2006-06-21 | Matsushita Electric Industrial Co., Ltd. | An integrated battery |
| US7288340B2 (en) | 2003-03-20 | 2007-10-30 | Matsushita Electric Industrial Co., Ltd. | Integrated battery |
| JP4522107B2 (en) * | 2003-03-20 | 2010-08-11 | パナソニック株式会社 | Battery |
| JP2005268138A (en) * | 2004-03-19 | 2005-09-29 | Fuji Heavy Ind Ltd | Plane alignment structure of power storage body |
| WO2010023940A1 (en) * | 2008-08-29 | 2010-03-04 | パナソニック株式会社 | Battery pack and electronic device configurations provided with said battery packs |
| US9907174B2 (en) | 2010-08-30 | 2018-02-27 | Applied Nanostructured Solutions, Llc | Structural energy storage assemblies and methods for production thereof |
| JP2013542551A (en) * | 2010-08-30 | 2013-11-21 | アプライド ナノストラクチャード ソリューションズ リミテッド ライアビリティー カンパニー | Structural energy storage assembly and method of manufacturing the same |
| JP2015220100A (en) * | 2014-05-19 | 2015-12-07 | Tdk株式会社 | Power storage device |
| JP2015220110A (en) * | 2014-05-19 | 2015-12-07 | Tdk株式会社 | Power storage device |
| JP2015220101A (en) * | 2014-05-19 | 2015-12-07 | Tdk株式会社 | Power storage device |
| US11011773B2 (en) | 2014-05-27 | 2021-05-18 | Apple Inc. | Devices and methods for reducing battery defects |
| CN106463677A (en) * | 2014-05-27 | 2017-02-22 | 苹果公司 | Devices and methods for reducing battery defects |
| US10115994B2 (en) * | 2014-05-27 | 2018-10-30 | Apple Inc. | Devices and methods for reducing battery defects |
| JP2016062717A (en) * | 2014-09-17 | 2016-04-25 | 昭和電工パッケージング株式会社 | Power storage device and manufacturing method thereof |
| WO2016092888A1 (en) * | 2014-12-09 | 2016-06-16 | 日本碍子株式会社 | Foldable battery module |
| WO2016092889A1 (en) * | 2014-12-09 | 2016-06-16 | 日本碍子株式会社 | Battery-equipped device |
| US10581114B2 (en) | 2014-12-09 | 2020-03-03 | Ngk Insulators, Ltd. | Battery-equipped device |
| JPWO2016092888A1 (en) * | 2014-12-09 | 2017-04-27 | 日本碍子株式会社 | Bendable battery module |
| CN107004900A (en) * | 2014-12-09 | 2017-08-01 | 日本碍子株式会社 | It is equipped with the equipment of battery |
| JPWO2016092889A1 (en) * | 2014-12-09 | 2017-09-21 | 日本碍子株式会社 | Battery-powered device |
| JP2017050270A (en) * | 2015-04-27 | 2017-03-09 | パナソニックＩｐマネジメント株式会社 | battery |
| JP2020161492A (en) * | 2015-04-27 | 2020-10-01 | パナソニックＩｐマネジメント株式会社 | battery |
| EP3089238A1 (en) * | 2015-04-27 | 2016-11-02 | Panasonic Intellectual Property Management Co., Ltd. | Solid electrolyte battery |
| US10985402B2 (en) | 2015-04-27 | 2021-04-20 | Panasonic Intellectual Property Management Co., Ltd. | Battery |
| US10270125B2 (en) * | 2015-04-27 | 2019-04-23 | Panasonic Intellectual Property Management Co., Ltd. | Battery |
| CN112133951A (en) * | 2015-04-27 | 2020-12-25 | 松下知识产权经营株式会社 | Battery with a battery cell |
| CN106099169A (en) * | 2015-04-27 | 2016-11-09 | 松下知识产权经营株式会社 | Battery |
| EP3352246A1 (en) * | 2015-04-27 | 2018-07-25 | Panasonic Intellectual Property Management Co., Ltd. | Solid electrolyte battery |
| CN106099169B (en) * | 2015-04-27 | 2020-10-27 | 松下知识产权经营株式会社 | Battery with a battery cell |
| JP2017084718A (en) * | 2015-10-30 | 2017-05-18 | 三洋化成工業株式会社 | Battery module and manufacturing method for the same |
| CN110249472A (en) * | 2017-02-23 | 2019-09-17 | 株式会社村田制作所 | Condenser plate and battery |
| WO2018154926A1 (en) * | 2017-02-23 | 2018-08-30 | 株式会社村田製作所 | Power storage sheet and battery |
| CN110249472B (en) * | 2017-02-23 | 2023-07-21 | 株式会社村田制作所 | Power storage plate and battery |
| JPWO2020241714A1 (en) * | 2019-05-29 | 2020-12-03 | ||
| WO2020241714A1 (en) * | 2019-05-29 | 2020-12-03 | 国立研究開発法人産業技術総合研究所 | Impregnatable high-density, brittle material structure |
| CN113950764A (en) * | 2019-05-29 | 2022-01-18 | 国立研究开发法人产业技术综合研究所 | High-density brittle material structure having infiltrability |
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