JPH1027602A - Electrode and lamination type battery - Google Patents
Electrode and lamination type batteryInfo
- Publication number
- JPH1027602A JPH1027602A JP8182926A JP18292696A JPH1027602A JP H1027602 A JPH1027602 A JP H1027602A JP 8182926 A JP8182926 A JP 8182926A JP 18292696 A JP18292696 A JP 18292696A JP H1027602 A JPH1027602 A JP H1027602A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrodes
- battery
- stacked
- negative 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.)
- Pending
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)
- Connection Of Batteries Or Terminals (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、集電体の片面に活
物質層が配され、作用面が非円形かつ線対称形の電極
と、この電極を用いた積層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 an electrode having an active material layer disposed on one side of a current collector and having a non-circular and line-symmetric active surface, and a stacked battery using this electrode.
【０００２】[0002]
【従来の技術】携帯用電子機器の小型化、高機能化が進
むに伴い、偏平で高容量を有する電池に対する要求がま
すます高まっている。一般的に高容量を達成する為に、
複数の正極と負極をセパレータを介して交互に積層し、
同極性同士を接続して単セルの電池を構成する積層形電
池が採用されている。また電池の形状に於いても、従来
円筒形が大部分であったが、機器の電池収納スペースに
対する適合の良さから、近年角形電池に対する要求が高
まっている。角形電池を構成する上で積層形電池は有力
である。2. Description of the Related Art As portable electronic devices have become smaller and more sophisticated, there is an increasing demand for flat and high-capacity batteries. Generally, to achieve high capacity,
A plurality of positive electrodes and negative electrodes are alternately stacked via a separator,
2. Description of the Related Art A stacked battery in which cells of the same polarity are connected to form a single-cell battery is employed. In addition, the shape of the battery has been mostly cylindrical in the past, but in recent years there has been an increasing demand for a prismatic battery due to its good adaptability to the battery storage space of the device. Stacked batteries are effective in constructing prismatic batteries.
【０００３】特に偏平形電池の電極の集電体は、薄さを
利点として金属箔を使用する場合が多い。金属箔を集電
体に用いた場合、片面に活物質層を配した片面作用の電
極の方が両面作用の電極に比べ、製作が容易で生産性に
優れている。また、片面作用の電極を積層形電池に用い
ると、隣り合う同一極性の集電体同士を重ね合わせるこ
とができるので、簡単に並列接続ができ、製造が簡単に
なる。In particular, a current collector of an electrode of a flat battery often uses a metal foil because of its thinness. When a metal foil is used for the current collector, a single-sided electrode having an active material layer disposed on one side is easier to manufacture and has higher productivity than a double-sided electrode. In addition, when a single-sided electrode is used in a stacked battery, adjacent current collectors of the same polarity can be overlapped with each other, so that parallel connection can be easily performed and manufacturing can be simplified.
【０００４】この様な片面作用の電極を１枚ずつ用いて
積層形電池を構成する場合、正極と負極の活物質層がセ
パレータを介して対向するように積層し、上面と下面の
集電体の一部分を端子としていた。従って、端子を集電
体のどこからでも取り出すことができた。[0004] In the case of forming a stacked battery using such single-sided electrodes one by one, the active material layers of the positive electrode and the negative electrode are stacked so as to face each other with a separator interposed therebetween, and the current collectors on the upper surface and the lower surface are formed. Was used as a terminal. Therefore, the terminal could be taken out of the current collector anywhere.
【０００５】[0005]
【発明が解決しようとする課題】しかし、片面作用の電
極を複数枚用いて積層形電池を構成する場合、例えば、
図７の（イ）のような電極６を用いて積層する場合、中
間に挟まれた電極６にリード端子等を取り付け、並列接
続しなければならなかった。また、図７の（ロ）のよう
に、矩形の電極７の一隅に切欠部７ｃを、他の一隅に端
子部７ｄを設けた電極７を用いて積層する場合、同一極
性の集電体７ａ同士が重なるように積層すると、上下の
端子部７ｄが重なり合わなくなり、簡単に並列接続でき
なかった。すなわち、図７の（ロ）の電極７を２枚用意
し、１枚を１８０度回転させ、集電体７ａ同士が重なる
ように積層すると、端子部７ｄの位置が左右に分かれ、
同一の位置で重ね合わせることができなかった。従っ
て、図７の（ロ）と（ハ）で示すように、端子部７ｄが
左右対称の位置にある２種類の電極７，７’を用意しな
ければならなかった。なお、図７において、６ａは集電
体、６ｂ，７ｂ，７’ｂは活物質層である。However, when a stacked battery is constructed using a plurality of single-sided electrodes, for example,
In the case of laminating using the electrodes 6 as shown in FIG. 7A, it is necessary to attach a lead terminal or the like to the electrode 6 sandwiched in the middle and connect them in parallel. As shown in FIG. 7B, when the cutout 7c is formed at one corner of the rectangular electrode 7 and the electrode 7 having the terminal 7d at the other corner is stacked, the current collector 7a having the same polarity is used. When they were stacked so that they overlapped each other, the upper and lower terminal portions 7d did not overlap and could not be easily connected in parallel. That is, when two electrodes 7 shown in (b) of FIG. 7 are prepared, and one is rotated by 180 degrees and stacked so that the current collectors 7a overlap each other, the position of the terminal portion 7d is divided into right and left,
It was not possible to overlap at the same position. Therefore, as shown in FIGS. 7B and 7C, it is necessary to prepare two types of electrodes 7, 7 'in which the terminal portions 7d are symmetrical. In FIG. 7, 6a is a current collector, and 6b, 7b and 7'b are active material layers.
【０００６】このように、非円形で線対称形の集電体の
片面に活物質が配された正極と負極を複数枚用い、同一
極性の集電体同士が重なり合うような積層形電池を構成
する場合、従来の極板では、二種類の形状のものを用意
しなければならないという問題点を有していた。As described above, a stacked battery in which current collectors having the same polarity are overlapped with each other using a plurality of positive and negative electrodes each having an active material disposed on one surface of a non-circular, line-symmetric current collector. In such a case, the conventional electrode plate had a problem that two types of shapes had to be prepared.
【０００７】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、前記積層形電池
を構成する場合、一種類の電極で構成しても端子部が同
一の位置で重なり合うようにできる電極を提供すること
にあり、また、このような電極を用いることによって、
安価、かつ製造が容易な積層形電池を提供することにあ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to form the above-mentioned stacked battery, in which the terminal portion is the same even if it is formed of one kind of electrode. It is to provide an electrode that can be overlapped in position, and by using such an electrode,
It is an object of the present invention to provide a laminated battery which is inexpensive and easy to manufacture.
【０００８】[0008]
【課題を解決するための手段】前記課題を解決するため
に、本発明の電極は、非円形で線対称形であって、集電
体の片面に活物質層が配置され、端子部が電極の作用面
を二分する中心線上の集電体に設けられていることを特
徴とするものであり、本発明の積層形電池は、上記構成
の正極と負極をそれぞれ複数有し、同一極性の集電体同
士が重なり合った状態で積層され、同一極性の端子部同
士が接続されていることを特徴とするものである。In order to solve the above-mentioned problems, an electrode according to the present invention has a non-circular, line-symmetrical shape, an active material layer is disposed on one side of a current collector, and a terminal portion has an electrode. The present invention is characterized in that the stacked battery is provided with a plurality of positive electrodes and a plurality of negative electrodes each having the above structure, and has the same polarity. It is characterized in that the conductors are stacked in an overlapping state, and terminal portions having the same polarity are connected.
【０００９】[0009]
【発明の実施の形態】例えば金属箔の如き集電体の片面
に活物質層を配した片面作用の電極に於て、電極の形状
を円以外の線対称形にし、かつその端子部を電極の作用
面を二分する中心線上の集電体に設ける。端子部は、電
極の作用面の一部に活物質を配置しない部分を設けるか
又は金属箔に突起を設けるのいずれの方法でも形成でき
る。前記の如き電極を正極、負極共に複数枚積層して成
る積層形電池であって、正極同士および負極同士の集電
体（金属箔）が重なるように積層する。金属箔の重なり
合った複数個の電極の端子部を抵抗溶接等で溶着して電
池の端子を形成する。又、端子部にリード端子を一体に
溶着することもできる。積層された極群をパッケージ内
に収納して積層形電池とする。DESCRIPTION OF THE PREFERRED EMBODIMENTS In a single-sided electrode in which an active material layer is disposed on one side of a current collector such as a metal foil, for example, the shape of the electrode is a line-symmetric shape other than a circle, and the terminal portion is an electrode. Is provided on the current collector on the center line that bisects the working surface of the above. The terminal portion can be formed by any method of providing a portion where the active material is not disposed on a part of the working surface of the electrode, or providing a projection on the metal foil. A stacked battery in which a plurality of electrodes as described above are stacked on both the positive electrode and the negative electrode, wherein the current collectors (metal foils) of the positive electrode and the negative electrode are stacked. The terminal portions of the plurality of electrodes where the metal foils overlap are welded by resistance welding or the like to form battery terminals. Further, the lead terminal can be welded integrally to the terminal portion. The stacked electrode group is housed in a package to form a stacked battery.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。なお、本発明の電極その他の材料および形状は
以下に示した例に限定されるものでは無い。図１は本発
明の積層形電池の極群の一実施例を示す斜視図、図２は
図１の極群の分解図、図３は正極の端子部同士を接続す
る前の図１のＡ−Ａ’一部欠裁断面図、図４は図１のＡ
−Ａ’一部欠裁断面図であり、１は正極、２は負極、３
はセパレータである。正極１と負極２は同一寸法、同一
形状である。An embodiment of the present invention will be described below with reference to the drawings. The electrodes and other materials and shapes of the present invention are not limited to the examples shown below. FIG. 1 is a perspective view showing an embodiment of the pole group of the stacked battery of the present invention, FIG. 2 is an exploded view of the pole group in FIG. 1, and FIG. 3 is A in FIG. 1 before connecting the terminals of the positive electrode. -A 'is a partially cutaway sectional view, and FIG.
-A 'is a partially cutaway sectional view, wherein 1 is a positive electrode, 2 is a negative electrode,
Is a separator. The positive electrode 1 and the negative electrode 2 have the same dimensions and the same shape.
【００１１】正極１は、長方形のアルミニウム箔からな
る集電体１ａの片面にコバルト酸リチウム（ＬｉＣｏＯ
2 ）等の活物質粉末とアセチレンブラック等の導電剤と
結着剤であるポリフッ化ビニリデン（ＰＶＤＦ）の混合
物から成る合剤層（活物質層）１ｂが配置されている。
図２に示すように、正極１の作用面を二分する中心線
（図の一点鎖線）上の一端の集電体１ａと合剤層１ｂを
切り欠いて切欠部１ｃが形成され、他端の合剤層１ｂを
除去して集電体１ａを露出させ端子部１ｄが形成されて
いる。The positive electrode 1 has a current collector 1a made of a rectangular aluminum foil on one side of which is made of lithium cobalt oxide (LiCoO).
2 ), a mixture layer (active material layer) 1b composed of a mixture of an active material powder such as acetylene black, a conductive agent such as acetylene black, and polyvinylidene fluoride (PVDF) as a binder is disposed.
As shown in FIG. 2, the current collector 1 a at one end and the mixture layer 1 b at a center line (a dashed line in the drawing) bisecting the working surface of the positive electrode 1 are cut out to form a cutout 1 c, and the other end is formed. The terminal layer 1d is formed by exposing the current collector 1a by removing the mixture layer 1b.
【００１２】負極２は銅箔からなる集電体２ａの片面
に、炭素粉末とＰＶＤＦの混合物から成る合剤層（活物
質層）２ｂが配置されている。そして、図２に示すよう
に、正極１と同様に負極２を二分する中心線（図の一点
鎖線）上の一端の集電体２ａと合剤層２ｂを切り欠いて
切欠部２ｃが形成され、他端の合剤層２ｂを除去して集
電体２ａを露出させ端子部２ｂが形成されている。In the negative electrode 2, a mixture layer (active material layer) 2b made of a mixture of carbon powder and PVDF is arranged on one side of a current collector 2a made of copper foil. Then, as shown in FIG. 2, a cutout portion 2c is formed by cutting out the current collector 2a and the mixture layer 2b at one end on a center line (a dashed line in the drawing) that bisects the negative electrode 2 similarly to the positive electrode 1. The terminal layer 2b is formed by removing the mixture layer 2b at the other end to expose the current collector 2a.
【００１３】セパレータ３は、図２のように、セパレー
タ３を二分する中心線（図の一点鎖線）の両端に正極１
または負極２の切欠部１ｃまたは２ｃと同様な形状の切
欠部３ａが形成されている。As shown in FIG. 2, the separator 3 has positive electrodes 1 at both ends of a center line (a dashed line in the drawing) that bisects the separator 3.
Alternatively, a notch 3a having the same shape as the notch 1c or 2c of the negative electrode 2 is formed.
【００１４】この様な正極１と負極２とセパレータ３を
２枚ずつ用いて図１のような極群を組み立てるには、図
２のように、２枚の負極２を切欠部２ｃ同士と端子部２
同士が重なるように集電体２ａ同士を重なり合わせて積
層し、負極２の合剤層２ｂと正極１の合剤層１ｂとがセ
パレータ３を介して重なるように積層する。この状態で
は、上下の正極１の端子部１ｄが図３のように分離した
状態なので、矢印方向に力を加え、図４のように端子部
１ｄ同士を接触させ、スポット溶接する。負極２の端子
部２ｄも同様にスポット溶接して並列接続する。その
後、この極群を電槽（図示せず）内へ収納し、例えば６
フッ化リン酸リチウム（ＬｉＰＦ6 ）のプロピレンカー
ボネイト（ＰＣ）溶液からなる電解液を注入し、開口部
を封止して本発明の積層形電池を完成する。To assemble the electrode group as shown in FIG. 1 using two such positive electrodes 1, two negative electrodes 2 and two separators 3, as shown in FIG. Part 2
The current collectors 2a are stacked so that they overlap each other, and the mixture layers 2b of the negative electrode 2 and the mixture layer 1b of the positive electrode 1 are stacked with the separator 3 interposed therebetween. In this state, since the terminal portions 1d of the upper and lower positive electrodes 1 are separated as shown in FIG. 3, a force is applied in the direction of the arrow to bring the terminal portions 1d into contact with each other as shown in FIG. Similarly, the terminal portion 2d of the negative electrode 2 is connected in parallel by spot welding. Thereafter, the electrode group is housed in a battery case (not shown), for example, 6
An electrolyte composed of a propylene carbonate (PC) solution of lithium fluorophosphate (LiPF 6 ) is injected, and the opening is sealed to complete the stacked battery of the present invention.
【００１５】なお、図５に示すように、金属片から成る
リード端子４を端子部１ｄ，２ｄの溶着と同時に溶着し
て端子とすることも可能である。また、本実施例では、
正極と負極をそれぞれ２枚ずつ用いた極群を示したが、
このような極群を２組、３組、・・・と積み重ねて高容
量の電池を組み立てることができる。電極の端子の位置
および形状には、前記の例の他に図６の（イ）〜（ホ）
に示したような実施例等も可能である。図６において、
５は電極、５ａは切欠部、５ｂは端子部を示す。As shown in FIG. 5, the lead terminal 4 made of a metal piece can be welded simultaneously with the welding of the terminal portions 1d and 2d to form a terminal. In this embodiment,
The electrode group using two positive electrodes and two negative electrodes is shown.
By stacking two or three such electrode groups, a high-capacity battery can be assembled. The positions and shapes of the electrode terminals are the same as those in the above-described example, except that FIGS.
Examples and the like shown in FIG. In FIG.
5 is an electrode, 5a is a notch, and 5b is a terminal.
【００１６】[0016]
【発明の効果】以上詳述したように、本発明は、次に記
載する効果を奏する。 （１）請求項１記載の電極は正極および負極が各々形状
と端子位置が同一である為、積層が容易で且つ位置合わ
せが正確にできる利点がある。又、端子の取り出しを容
易にするものである。 （２）請求項２および３記載の積層形電池は電極の端子
間を接続する為のリードを使用せずに効率良く並列接続
になるよう積層されてなるもので、製作が容易でかつ、
無駄な部品を省けるところから体積効率の優れた電池で
ある。As described in detail above, the present invention has the following effects. (1) Since the shape and terminal position of the positive electrode and the negative electrode are the same, the electrode according to claim 1 has an advantage that the lamination is easy and the positioning can be accurately performed. In addition, the terminal can be easily taken out. (2) The stacked batteries according to claims 2 and 3 are stacked so as to be efficiently connected in parallel without using leads for connecting the terminals of the electrodes.
It is a battery with excellent volumetric efficiency because it saves unnecessary parts.
【図１】本発明に係る極群の一実施例を示す斜視図であ
る。FIG. 1 is a perspective view showing one embodiment of a pole group according to the present invention.
【図２】図１の極群の分解斜視図である。FIG. 2 is an exploded perspective view of the pole group of FIG.
【図３】正極端子部を接続する前の図１のＡ−Ａ’一部
欠裁断面図である。FIG. 3 is a partially cutaway sectional view taken along the line AA ′ of FIG. 1 before connecting a positive electrode terminal unit.
【図４】図１のＡ−Ａ’一部欠裁断面図である。FIG. 4 is a partially cutaway sectional view taken along line A-A 'of FIG.
【図５】本発明に係る極群の他の実施例を示す平面図で
ある。FIG. 5 is a plan view showing another embodiment of the pole group according to the present invention.
【図６】本発明の電極の実施例を示す平面図である。FIG. 6 is a plan view showing an embodiment of the electrode of the present invention.
【図７】従来の電極を示す斜視図である。FIG. 7 is a perspective view showing a conventional electrode.
１ 正極 ２ 負極 １ａ，２ａ 集電体 １ｂ，２ｂ 合剤層（活物質層） １ｄ，２ｄ 端子部 DESCRIPTION OF SYMBOLS 1 Positive electrode 2 Negative electrode 1a, 2a Current collector 1b, 2b Mixture layer (active material layer) 1d, 2d Terminal part
Claims (3)
れ、作用面が非円形かつ線対称形に形成された電極にお
いて、前記作用面を二分する中心線上に端子部を設けた
ことを特徴とする電極。1. An electrode in which an active material layer is disposed on one side of a flat current collector and has a non-circular and line-symmetrical working surface, and a terminal portion is provided on a center line bisecting the working surface. An electrode characterized in that:
し、同一極性の集電体同士が重なるように積層され、各
々の正極および負極が並列接続されていることを特徴と
する積層形電池。2. A laminate comprising a plurality of positive electrodes and a negative electrode according to claim 1, wherein current collectors of the same polarity are laminated so as to overlap each other, and each positive electrode and negative electrode are connected in parallel. Shaped batteries.
なって溶着されていることを特徴とする請求項２記載の
積層形電池。3. The stacked battery according to claim 2, wherein the terminals of the positive electrode and the negative electrode are welded so as to overlap each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8182926A JPH1027602A (en) | 1996-07-12 | 1996-07-12 | Electrode and lamination type battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8182926A JPH1027602A (en) | 1996-07-12 | 1996-07-12 | Electrode and lamination type battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1027602A true JPH1027602A (en) | 1998-01-27 |
Family
ID=16126799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8182926A Pending JPH1027602A (en) | 1996-07-12 | 1996-07-12 | Electrode and lamination type battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1027602A (en) |
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|---|---|---|---|---|
| JP2000340251A (en) * | 1999-03-25 | 2000-12-08 | Sanyo Electric Co Ltd | Square battery |
| JP2001313068A (en) * | 2000-04-28 | 2001-11-09 | Matsushita Electric Ind Co Ltd | Electrode plate unit and cell |
| JP2002216740A (en) * | 2001-01-23 | 2002-08-02 | Matsushita Electric Ind Co Ltd | Non-aqueous secondary battery |
| JP2006139919A (en) * | 2004-11-10 | 2006-06-01 | Ngk Spark Plug Co Ltd | Lithium ion secondary battery and its manufacturing method |
| JP2012018795A (en) * | 2010-07-07 | 2012-01-26 | Nec Energy Devices Ltd | Laminate-type battery and battery module |
| JP2013089602A (en) * | 2011-10-21 | 2013-05-13 | Research In Motion Ltd | Method for reducing volume of tab required for external connection |
| JP2013098080A (en) * | 2011-11-02 | 2013-05-20 | Toyota Industries Corp | Secondary battery and vehicle with secondary battery mounted thereon |
| US9142840B2 (en) | 2011-10-21 | 2015-09-22 | Blackberry Limited | Method of reducing tabbing volume required for external connections |
| JP2017016750A (en) * | 2015-06-26 | 2017-01-19 | 旭化成株式会社 | Electrode and lithium ion secondary battery |
| US9553302B2 (en) | 2010-01-20 | 2017-01-24 | Samsung Sdi Co., Ltd. | Electrode assemblage and rechargeable battery using the same |
| JP2017069207A (en) * | 2015-09-30 | 2017-04-06 | 積水化学工業株式会社 | Lithium ion secondary battery and manufacturing method for the same |
| JP2017143030A (en) * | 2016-02-12 | 2017-08-17 | トヨタ自動車株式会社 | Layered battery |
| KR20170096109A (en) * | 2014-11-05 | 2017-08-23 | 24엠 테크놀로지즈, 인크. | Electrochemical cells having semi-solid electrodes and methods of manufacturing the same |
| US9905891B2 (en) | 2013-03-04 | 2018-02-27 | Lg Chem, Ltd. | Battery cell provided with cut portion and battery pack comprising the same |
| US10147926B1 (en) * | 2014-04-15 | 2018-12-04 | Amazon Technologies, Inc. | Battery package including electrode having recessed region of electrode material layer exposing a portion of a conductive layer and method of making the same |
| US10446828B2 (en) | 2011-10-21 | 2019-10-15 | Blackberry Limited | Recessed tab for higher energy density and thinner batteries |
| US11024903B2 (en) | 2015-06-18 | 2021-06-01 | 24M Technologies, Inc. | Single pouch battery cells and methods of manufacture |
| US11121437B2 (en) | 2012-05-18 | 2021-09-14 | 24M Technologies, Inc. | Electrochemical cells and methods of manufacturing the same |
| US11309531B2 (en) | 2011-09-07 | 2022-04-19 | 24M Technologies, Inc. | Stationary semi-solid battery module and method of manufacture |
| WO2022137617A1 (en) * | 2020-12-24 | 2022-06-30 | 株式会社村田製作所 | Secondary battery |
| JP2022166063A (en) * | 2013-12-04 | 2022-11-01 | 株式会社半導体エネルギー研究所 | Power storage body |
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-
1996
- 1996-07-12 JP JP8182926A patent/JPH1027602A/en active Pending
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| JP2000340251A (en) * | 1999-03-25 | 2000-12-08 | Sanyo Electric Co Ltd | Square battery |
| JP2001313068A (en) * | 2000-04-28 | 2001-11-09 | Matsushita Electric Ind Co Ltd | Electrode plate unit and cell |
| JP2002216740A (en) * | 2001-01-23 | 2002-08-02 | Matsushita Electric Ind Co Ltd | Non-aqueous secondary battery |
| JP2006139919A (en) * | 2004-11-10 | 2006-06-01 | Ngk Spark Plug Co Ltd | Lithium ion secondary battery and its manufacturing method |
| JP4603857B2 (en) * | 2004-11-10 | 2010-12-22 | 日本特殊陶業株式会社 | Lithium ion secondary battery and manufacturing method thereof |
| US9553302B2 (en) | 2010-01-20 | 2017-01-24 | Samsung Sdi Co., Ltd. | Electrode assemblage and rechargeable battery using the same |
| JP2012018795A (en) * | 2010-07-07 | 2012-01-26 | Nec Energy Devices Ltd | Laminate-type battery and battery module |
| US11888144B2 (en) | 2011-09-07 | 2024-01-30 | 24M Technologies, Inc. | Stationary semi-solid battery module and method of manufacture |
| US11309531B2 (en) | 2011-09-07 | 2022-04-19 | 24M Technologies, Inc. | Stationary semi-solid battery module and method of manufacture |
| US9142840B2 (en) | 2011-10-21 | 2015-09-22 | Blackberry Limited | Method of reducing tabbing volume required for external connections |
| US10446828B2 (en) | 2011-10-21 | 2019-10-15 | Blackberry Limited | Recessed tab for higher energy density and thinner batteries |
| JP2013089602A (en) * | 2011-10-21 | 2013-05-13 | Research In Motion Ltd | Method for reducing volume of tab required for external connection |
| JP2013098080A (en) * | 2011-11-02 | 2013-05-20 | Toyota Industries Corp | Secondary battery and vehicle with secondary battery mounted thereon |
| US11121437B2 (en) | 2012-05-18 | 2021-09-14 | 24M Technologies, Inc. | Electrochemical cells and methods of manufacturing the same |
| US11646437B2 (en) | 2012-05-18 | 2023-05-09 | 24M Technologies, Inc. | Electrochemical cells and methods of manufacturing the same |
| US9905891B2 (en) | 2013-03-04 | 2018-02-27 | Lg Chem, Ltd. | Battery cell provided with cut portion and battery pack comprising the same |
| JP2022166063A (en) * | 2013-12-04 | 2022-11-01 | 株式会社半導体エネルギー研究所 | Power storage body |
| US10147926B1 (en) * | 2014-04-15 | 2018-12-04 | Amazon Technologies, Inc. | Battery package including electrode having recessed region of electrode material layer exposing a portion of a conductive layer and method of making the same |
| JP2021144947A (en) * | 2014-11-05 | 2021-09-24 | 24エム・テクノロジーズ・インコーポレイテッド24M Technologies, Inc. | Electrochemical cell having semi-solid electrode and method of manufacturing the same |
| CN112803057A (en) * | 2014-11-05 | 2021-05-14 | 24M技术公司 | Electrochemical cell with semi-solid electrode and method of making same |
| JP2017533548A (en) * | 2014-11-05 | 2017-11-09 | ２４エム・テクノロジーズ・インコーポレイテッド２４Ｍ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． | Electrochemical cell having semi-solid electrode and method for producing the same |
| US10886521B2 (en) | 2014-11-05 | 2021-01-05 | 24M Technologies, Inc. | Electrochemical cells having semi-solid electrodes and methods of manufacturing the same |
| US11611061B2 (en) | 2014-11-05 | 2023-03-21 | 24M Technologies, Inc. | Electrochemical cells having semi-solid electrodes and methods of manufacturing the same |
| KR20170096109A (en) * | 2014-11-05 | 2017-08-23 | 24엠 테크놀로지즈, 인크. | Electrochemical cells having semi-solid electrodes and methods of manufacturing the same |
| US11024903B2 (en) | 2015-06-18 | 2021-06-01 | 24M Technologies, Inc. | Single pouch battery cells and methods of manufacture |
| US11831026B2 (en) | 2015-06-18 | 2023-11-28 | 24M Technologies, Inc. | Single pouch battery cells and methods of manufacture |
| JP2017016750A (en) * | 2015-06-26 | 2017-01-19 | 旭化成株式会社 | Electrode and lithium ion secondary battery |
| JP2017069207A (en) * | 2015-09-30 | 2017-04-06 | 積水化学工業株式会社 | Lithium ion secondary battery and manufacturing method for the same |
| JP2017143030A (en) * | 2016-02-12 | 2017-08-17 | トヨタ自動車株式会社 | Layered battery |
| US11742525B2 (en) | 2020-02-07 | 2023-08-29 | 24M Technologies, Inc. | Divided energy electrochemical cell systems and methods of producing the same |
| WO2022137617A1 (en) * | 2020-12-24 | 2022-06-30 | 株式会社村田製作所 | Secondary battery |
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