JPH07272717A - Manufacture of flat type nonaqueous electrolyte battery - Google Patents

Manufacture of flat type nonaqueous electrolyte battery

Info

Publication number
JPH07272717A
JPH07272717A JP6355694A JP6355694A JPH07272717A JP H07272717 A JPH07272717 A JP H07272717A JP 6355694 A JP6355694 A JP 6355694A JP 6355694 A JP6355694 A JP 6355694A JP H07272717 A JPH07272717 A JP H07272717A
Authority
JP
Japan
Prior art keywords
lithium
negative electrode
chip
electrode terminal
electrolyte battery
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
Application number
JP6355694A
Other languages
Japanese (ja)
Other versions
JP2780634B2 (en
Inventor
Toshio Mizuno
利男 水野
Akihide Izumi
彰英 泉
Masatake Nishio
昌武 西尾
Tomohisa Nozue
智久 野末
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FDK Corp
Original Assignee
FDK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FDK Corp filed Critical FDK Corp
Priority to JP6355694A priority Critical patent/JP2780634B2/en
Publication of JPH07272717A publication Critical patent/JPH07272717A/en
Application granted granted Critical
Publication of JP2780634B2 publication Critical patent/JP2780634B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • Y02E60/12

Abstract

PURPOSE:To provide a manufacturing method for a flat type nonaqueous electrolyte battery capable of enhancing reaction efficiency of lithium and obtaining stable discharge performance by efficiently, accurately pressing for fixing lithium in the form of nearly complete round to the whole surface of a negative terminal. CONSTITUTION:In the manufacturing method for a flat type nonaqueous electrolyte battery fabricated by using a negative electrode 2 formed by pressing lithium 2b serving as a negative active material against a disk-like negative terminal 2a, a chip of lithium 2b obtained by cutting a rod is temporarily pressed near the center of the negative terminal 2a. The chip is temporarily molded by 1/2-1/4 of the chip thickness with a pressing jig K with a recessed surface to form an almost round projection, then the chip is pressed by 1/6 or less of the original thickness with a pressing jig G with flat surface to press against the negative terminal 2a to form the negative electrode 2. Before the lithium 2b is temporarily molded in the form of almost round projection, a die lubricant 6 stable to an electrolyte such as propylene carbonate (PC) and liquid paraffin is preferably applied to the surface of the lithium 2b coming in contact with the pressing jig K.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は偏平形非水電解液電池の
製造方法に関し、特にリチウム等の負極活物質を圧着し
て形成する負極部の製造法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a flat type non-aqueous electrolyte battery, and more particularly to a method for manufacturing a negative electrode portion formed by pressure bonding a negative electrode active material such as lithium.

【0002】[0002]

【従来の技術】リチウム等のアルカリ金属から成る負極
活物質を所定形状に加圧成形し、負極端子に圧着する方
法として特開昭55−56370号、特開昭59−42
777号及び特開平3−238756号が開示され、そ
のなかでは、矩形断面、或いは円形断面をもつ棒状のリ
チウム成形品を予め所定の長さに栽断してチップ状と
し、これを負極端子中央部に載置した後、押圧治具によ
り略円板状に加圧・圧着して負極部を形成するものが示
されている。
2. Description of the Related Art As a method of press-molding a negative electrode active material made of an alkali metal such as lithium into a predetermined shape and press-bonding it to a negative electrode terminal, JP-A-55-56370 and 59-42.
No. 777 and JP-A-3-238756 are disclosed, in which a rod-shaped lithium molded product having a rectangular cross section or a circular cross section is cut into a predetermined length in advance into a chip shape, which is formed at the center of the negative electrode terminal. It is shown that the negative electrode portion is formed by pressing and crimping in a substantially disc shape by a pressing jig after placing it on the plate portion.

【0003】電池にとって、電気容量は重要な特性項目
であり、加圧・成形後のリチウムは真円形に近い程負極
端子一杯に効率良く圧着でき、電気容量も大きくでき
る。ここで、リチウム(ロッド)の形状は正四角柱に近
い程、加圧・圧着後は真円と成り易いが、電池の品種毎
にロッドを管理、取換えするのは煩雑で作業性も悪くコ
ストアップになるため、従来より電池容量の近似した品
種には厚さや幅の同じものを使用し、品種毎の電池容量
の差は裁断寸法を変えて調整し、ロッドの共通化を図っ
ていた。
The electric capacity is an important characteristic item for a battery, and the closer the lithium after pressing / molding is to a perfect circle, the more efficiently it can be pressure-bonded to the negative electrode terminal and the larger the electric capacity. Here, the closer the lithium (rod) shape is to a regular square pole, the more likely it is to be a perfect circle after pressurization and pressure bonding, but managing and replacing the rod for each type of battery is complicated and workability is poor, and cost is low. For this reason, conventionally, products with similar battery capacities have the same thickness and width, and the difference in battery capacities between products has been adjusted by changing the cutting size to make the rod common.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、負極部
を量産する時、裁断したリチウムのチップを負極端子の
中央部に正しく載置することは難しく、これがずれたま
ま負極端子に加圧・圧着されると図3・a、図3・bに
示すように、リチウムの一部が負極端子底部からはみ出
し、これがセパレータ、又はガスケットの安定性を損な
う要因となっていた。又、このような位置ずれによるリ
チウムのはみ出しを防止するため、予め裁断寸法を短め
にしてずれに対して余裕をもたせ、その分、ロッド厚を
厚めにすることでリチウム容量を一定とし、図4・aに
示すように負極端子内面に収める方法もあるが、これで
は負極端子の内容積を有効に使うことができず、リチウ
ムの反応面積が低下して重負荷用途には不利となる。
However, when mass-producing the negative electrode portion, it is difficult to properly mount the cut lithium chip on the center portion of the negative electrode terminal. Then, as shown in FIGS. 3A and 3B, a part of lithium protruded from the bottom of the negative electrode terminal, which was a factor that impaired the stability of the separator or the gasket. Further, in order to prevent the lithium from squeezing out due to such a positional displacement, the cutting size is shortened in advance to allow a margin for the displacement, and the rod thickness is made thicker by that amount to make the lithium capacity constant. There is also a method of putting it in the inner surface of the negative electrode terminal as shown in a, but this cannot effectively use the internal volume of the negative electrode terminal, and the reaction area of lithium is reduced, which is disadvantageous for heavy load applications.

【0005】又、例えば偏平形非水電解液電池CR20
25用とCR2032用にロッドを共用した場合、後者
では、ロッド裁断後のチップの形状が正四角柱でなくな
るため、加圧・圧着後のリチウムは図4・bに示すよう
に楕円状となり、同様に負極端子の内容積を有効に使え
ないという不具合が生じる。
Further, for example, a flat type non-aqueous electrolyte battery CR20
When the rod is shared for 25 and CR2032, in the latter case, the shape of the tip after cutting the rod is not a regular square pole, so the lithium after pressurization and pressure bonding becomes elliptical as shown in Fig. 4b, In addition, there is a problem that the internal volume of the negative electrode terminal cannot be used effectively.

【0006】本発明の目的は、このような不都合を解消
し、リチウムを真円に近い形状で負極端子内一杯に効率
良く正確に加圧・圧着することでリチウムの反応効率を
向上させ、より安定した放電性能を得ることができる偏
平形非水電解液電池の製造法を提供することにある。
The object of the present invention is to eliminate such inconveniences and improve the reaction efficiency of lithium by pressurizing and crimping lithium in a shape close to a perfect circle efficiently and accurately in the negative electrode terminal. An object of the present invention is to provide a method for manufacturing a flat type non-aqueous electrolyte battery capable of obtaining stable discharge performance.

【0007】[0007]

【課題を解決するための手段】負極活物質であるリチウ
ムを円盤状の負極端子に圧着して成る負極部を用いて組
立られる偏平形非水電解液電池の製造法において、上記
リチウムのロッド裁断後のチップを負極端子の中央付近
に仮圧着し、該チップを凹面状の押圧治具でチップ厚の
1/2〜1/4まで仮成形して略円形の凸状と成し、そ
の後、該チップを平面状の押圧治具で初厚の1/6以下
まで加圧して負極端子に圧着し、負極部を形成するよう
にした。
In a method for manufacturing a flat type non-aqueous electrolyte battery, which is assembled by using a negative electrode portion formed by crimping lithium, which is a negative electrode active material, to a disk-shaped negative electrode terminal, the lithium rod cutting is performed. The subsequent chip is temporarily pressure-bonded in the vicinity of the center of the negative electrode terminal, and the chip is temporarily molded by a concave pressing jig to 1/2 to 1/4 of the chip thickness to form a substantially circular convex shape. The chip was pressed with a flat pressing jig to 1/6 or less of the initial thickness and pressure-bonded to the negative electrode terminal to form the negative electrode portion.

【0008】又、リチウムを略円形の凸状に仮成形する
前に、押圧治具と当接するリチウムの面にプロピレンカ
ーボネート(PC)又は流動パラフィン等、電解液に対
し安定な離型剤を塗布するとよい。
Further, before the lithium is temporarily formed into a substantially circular convex shape, a release agent that is stable against an electrolytic solution, such as propylene carbonate (PC) or liquid paraffin, is applied to the surface of the lithium that contacts the pressing jig. Good to do.

【0009】[0009]

【作 用】リチウムの仮圧着時、チップの載置位置が負
極端子の中央より若干ずれても、凹面状の押圧治具によ
り加圧するとチップは凹面状の中央に強制移動する。
[Operation] Even when the mounting position of the chip deviates slightly from the center of the negative electrode terminal during temporary pressure bonding of lithium, the chip is forcibly moved to the center of the concave surface when pressure is applied by the concave pressing jig.

【0010】又、チップを略円形の凸状に仮成形した後
平面状の押圧治具で加圧・圧着すると、チップが正四角
柱でなくとも、加圧成形後のリチウムは真円形に近づ
き、負極端子内面一杯に効率良く圧着される。
Further, when the chip is temporarily molded into a substantially circular convex shape and then pressured and pressed by a planar pressing jig, the lithium after pressure molding approaches a true circle even if the chip is not a square prism. The inner surface of the negative electrode terminal is efficiently crimped.

【0011】更に、チップ上面にPC等の離型剤を塗布
すると、治具による加圧時、チップが治具面に貼り付か
なくなる。
Furthermore, if a mold release agent such as PC is applied to the upper surface of the chip, the chip will not stick to the surface of the jig when pressure is applied by the jig.

【0012】[0012]

【実施例】図1は、偏平形非水電解液電池の一例を示す
ものである。
EXAMPLE FIG. 1 shows an example of a flat type non-aqueous electrolyte battery.

【0013】この種の電池では金属製電池ケース1内に
負極活物質2b、セパレータ4及び正極活物質3bから
成る発電要素が密封状態で封入されている。上記電池ケ
ース1は、ステンレスのような金属板を皿状にプレス成
形した負極端子2aと正極端子3aとをガスケット5を
挟んで一体化させたもので、正極端子3a内には、上述
の正極活物質3b(二酸化マンガン、黒鉛等の混合粉末
を加圧成形したもの)が、又負極端子2a内には負極活
物質2b(リチウム等のアルカリ金属)がそれぞれ充填
され、正極部3及び負極部2を形成している。
In this type of battery, a power generating element composed of a negative electrode active material 2b, a separator 4 and a positive electrode active material 3b is hermetically sealed in a metal battery case 1. The battery case 1 is formed by integrating a negative electrode terminal 2a and a positive electrode terminal 3a, which are formed by pressing a metal plate such as stainless steel into a dish shape, with a gasket 5 interposed therebetween. The positive electrode part 3 and the negative electrode part are respectively filled with an active material 3b (a mixed powder of manganese dioxide, graphite, etc.) and a negative electrode terminal 2a filled with a negative electrode active material 2b (an alkali metal such as lithium). Forming 2.

【0014】ところでこのような偏平形非水電解液電池
を製造するに際しては、上記負極端子2aと正極端子3
aとを一体化する前に、各端子2a、3aに活物質2
b、3bを予め充填する必要があるが、本発明の特徴と
するところは、負極活物質であるリチウム2bを真円に
近い形状で負極端子2a内一杯に効率良く、且つ正確に
圧着するところにあり、その方法について詳細に説明す
る。
When manufacturing such a flat type non-aqueous electrolyte battery, the negative electrode terminal 2a and the positive electrode terminal 3 are used.
Before integrating with a, the active material 2 is attached to each terminal 2a, 3a.
It is necessary to prefill b, 3b, but the feature of the present invention is that lithium 2b, which is the negative electrode active material, is efficiently and accurately crimped in the negative electrode terminal 2a in a shape close to a perfect circle. The method will be described in detail.

【0015】図2は、一例として偏平型非水電解液電池
CR2032用の負極部2を形成する工程を示したもの
である。
FIG. 2 shows a process of forming the negative electrode portion 2 for the flat type nonaqueous electrolyte battery CR2032 as an example.

【0016】負極活物質であるリチウム2bの成形品
(厚さ3.5mm、幅5.8mmの角材)は、長さ5.
9〜6.0mmに裁断してチップ状にされる(図2・
a)。裁断されたチップ状のリチウム2bは8ポストで
負極端子2a(内径16.2φ)の中央付近に仮圧着さ
れ、そのチップ上面には塗布用パイプPにより離型剤6
(PC)が塗布される(図2・b)。更に、仮圧着され
たチップは凹面状の押圧治具Kによりチップ中央部の厚
さを1.5mm(即ち、チップ厚の3/7)まで圧着さ
れ(図2・c)、略円形の凸状チップに仮成形される
(図2・d)。この時、図2・bに示すようにチップの
中心が負極端子2aの中心と少々ずれて仮圧着されてい
ても、加圧時には押圧治具Kの凹面形状によりチップ横
方向へ力が働き、チップは中央部に強制移動して位置決
めされるのである。この時、チップ上面に塗布した離型
剤6がチップと押圧治具Kの貼り付きを防止するため位
置決めが容易となり、正しく仮成形できるのでより好ま
しい。
A molded product of lithium 2b as the negative electrode active material (square material having a thickness of 3.5 mm and a width of 5.8 mm) had a length of 5.
It is cut into 9 to 6.0 mm and made into chips (Fig.
a). The cut chip-shaped lithium 2b is temporarily pressure-bonded to the vicinity of the center of the negative electrode terminal 2a (inner diameter 16.2φ) by 8 posts, and the release agent 6 is applied to the chip upper surface by the coating pipe P.
(PC) is applied (Fig. 2b). Furthermore, the temporarily pressure-bonded chip is pressure-bonded to a thickness of 1.5 mm (that is, 3/7 of the chip thickness) at the center of the chip by the concave pressing jig K (FIG. 2C), and a substantially circular convex shape is obtained. It is temporarily formed into a chip (Fig. 2d). At this time, as shown in FIG. 2B, even if the center of the chip is slightly displaced from the center of the negative electrode terminal 2a and is temporarily pressure-bonded, a force acts in the lateral direction of the chip due to the concave shape of the pressing jig K during pressurization. The tip is forcibly moved to the center and positioned. At this time, the release agent 6 applied to the upper surface of the chip prevents the chip from sticking to the pressing jig K, which facilitates the positioning and allows the correct temporary molding, which is more preferable.

【0017】その後、更に平面状の押圧治具Gで厚さ
0.5mm(即ち、チップ厚の1/7)まで押圧し、負
極端子2aに圧着されて負極部2が形成される(図2・
e、f)。
Thereafter, the flat pressing jig G is pressed to a thickness of 0.5 mm (that is, 1/7 of the chip thickness), and is pressed to the negative electrode terminal 2a to form the negative electrode portion 2 (FIG. 2).・
e, f).

【0018】又、チップを略円形の凸状に仮成形した
後、加圧すると,裁断後のチップが正四角柱でなくと
も、加圧成形後のリチウム2bは真円形に近ずき、負極
端子2a内面一杯に効率良く圧着されるのである。
Further, when the chip is preliminarily molded into a substantially circular convex shape and then pressure is applied, even if the chip after cutting is not a regular square pole, the lithium 2b after pressure molding approaches a true circle, and the negative electrode terminal. The inner surface of 2a is efficiently crimped.

【0019】尚、本実施例ではチップの仮成形を直接負
極端子2a上で行っているが、治具内で仮成形し、最終
工程でこれを負極端子2aに加圧・圧着することも勿論
可能である。
In this embodiment, the temporary molding of the chip is performed directly on the negative electrode terminal 2a. However, it is of course possible to perform temporary molding in a jig and press and crimp it onto the negative electrode terminal 2a in the final step. It is possible.

【0020】ここで、正極合剤3bを充填した正極端子
3aにセパレータ4を載置し、注液した後、ガスケット
5を介して上記負極部2を嵌合してCR2032を組立
て、一定容量のチップ状リチウム2bを負極端子2aに
圧着したときの広がり状態を調べると共に、2.7KΩ
放電(終止電圧2.5V)での性能を測定し、これらを
直接平面状の押圧治具Gにより加圧・圧着して形成した
従来品と比較し、その結果を表1に示した。
Here, after placing the separator 4 on the positive electrode terminal 3a filled with the positive electrode mixture 3b and injecting the liquid, the negative electrode portion 2 is fitted through the gasket 5 to assemble the CR2032 to obtain a fixed capacity. The spread state when the chip-shaped lithium 2b was pressure-bonded to the negative electrode terminal 2a was examined, and 2.7 KΩ was measured.
The performance under discharge (final voltage 2.5 V) was measured, and these were compared with a conventional product formed by directly pressurizing and pressing with a planar pressing jig G, and the results are shown in Table 1.

【0021】尚、加圧・圧着後のリチウム2bの径は1
5.5φ及び16.0φの2種類とし、リチウムのはみ
出しチェックは、各々100個(但し従来品は50
個)とした、又放電性能チェックは各々5個とした。
The diameter of lithium 2b after pressurization and pressure bonding is 1
There are two types, 5.5φ and 16.0φ, and the lithium protrusion check is 100 each (however, 50
The number of discharge performance checks was 5 each.

【0022】比較試験の結果、リチウム2bの圧着後、
従来品では、リチウム2bの径が15.5φ、16.0
φ共、はみ出しの発生が多く、特に16.0φの場合で
は組立不能となり得る極端なはみ出しが発生したが、こ
れに対し本発明品の場合は実質上支障となるようなはみ
出しは発生していないことがわかる。
As a result of the comparison test, after pressure bonding of lithium 2b,
In the conventional product, the diameter of lithium 2b is 15.5φ, 16.0.
In both cases of φ, there was a large amount of protrusion, and particularly in the case of 16.0φ, there was an extreme protrusion that could make assembly impossible, whereas in the case of the product of the present invention, there was no protrusion that was a substantial obstacle. I understand.

【0023】又、電池の放電持続時間についても従来品
の場合が劣っているが、これはチップの加圧・圧着時に
中心がずれて上記はみ出しが発生し、正極部3と負極部
2との対向面積が減って電池容量が減少したためであ
る。これに対して本発明の場合は、チップのずれが防止
されて負極端子一杯にリチウム2bを圧着できるため、
反応面積が大きくなって放電性能が向上している。
Further, the discharge duration of the battery is also inferior to that of the conventional product, but this is caused by the misalignment of the center when the chip is pressed and pressure-bonded to cause the above-mentioned protrusion, and the positive electrode part 3 and the negative electrode part 2 are separated from each other. This is because the facing area is reduced and the battery capacity is reduced. On the other hand, in the case of the present invention, since the displacement of the chip is prevented and the lithium 2b can be pressure-bonded to the full negative electrode terminal,
The reaction area is increased and the discharge performance is improved.

【0024】[0024]

【表1】 [Table 1]

【0025】[0025]

【発明の効果】本発明によれば、負極部を形成する際、
負極活物質であるリチウムのロッド裁断後のチップを凹
面状の押圧治具でチップ厚の1/2〜1/4まで加圧・
変形して略円形の凸状に仮成形し、その後、該チップを
平面状の押圧治具で初厚の1/6以下まで加圧して負極
端子に圧着したので、仮圧着時にチップの載置位置が負
極端子の中心より若干ずれたとしても、押圧時には押圧
治具の凹面形状によりチップ横方向へ力が働き、チップ
は負極端子の中央に移動し位置決めされる。その結果、
リチウムのはみ出しが防止され負極端子内面一杯に効率
良く圧着できるため負極端子の反応面積が大きくなり、
放電性能も安定する。
According to the present invention, when the negative electrode portion is formed,
Press the chip after cutting the rod of lithium, which is the negative electrode active material, with a concave pressing jig to 1/2 to 1/4 of the chip thickness.
It is deformed and temporarily molded into a substantially circular convex shape, and then the chip is pressed by a flat pressing jig to 1/6 or less of the initial thickness and pressure-bonded to the negative electrode terminal. Even if the position is slightly deviated from the center of the negative electrode terminal, a force acts in the lateral direction of the chip due to the concave shape of the pressing jig at the time of pressing, and the chip moves to the center of the negative electrode terminal and is positioned. as a result,
Lithium is prevented from squeezing out and the inner surface of the negative electrode terminal can be efficiently pressure-bonded, increasing the reaction area of the negative electrode terminal.
The discharge performance is also stable.

【0026】更に、チップを略円形の凸状に仮成形した
後、加圧・圧着することで、裁断したチップが正四角柱
でなくとも略真円形に成形できるため、上記同様負極端
子の内容積が有効に利用でき、放電性能が安定する。
Further, by temporarily molding the chip into a substantially circular convex shape and then pressurizing and pressing it, the cut chip can be molded into a substantially circular shape even if it is not a regular square pole. Can be effectively used, and the discharge performance is stable.

【0027】又、チップにPC等の離型剤を塗布する
と、押圧の際チップが押圧治具に貼り付かなくなり仮成
形時の位置決めが容易となる。
Further, when a mold release agent such as PC is applied to the chip, the chip does not stick to the pressing jig during pressing, and positioning during temporary molding becomes easy.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による偏平形非水電解液電池の外観及び
内部構造を示す図。
FIG. 1 is a diagram showing an appearance and an internal structure of a flat type non-aqueous electrolyte battery according to the present invention.

【図2】本発明による負極部の組立工程を示す図。FIG. 2 is a diagram showing a process of assembling the negative electrode portion according to the present invention.

【図3】リチウムの負極端子への圧着がずれた状態を示
す図で、(a)は平面図、(b)は側面の断面図を示
す。
3A and 3B are diagrams showing a state in which lithium is not pressure-bonded to a negative electrode terminal, wherein FIG. 3A is a plan view and FIG. 3B is a side sectional view.

【図4】リチウムの負極端子への圧着状態を示す図で、
(a)はリチウムが小さい真円形の場合、(b)は楕円
形の場合を示す。
FIG. 4 is a diagram showing a state in which lithium is pressure-bonded to a negative electrode terminal,
(A) shows the case where lithium is a small circle, and (b) shows the case of an ellipse.

【符号の説明】[Explanation of symbols]

2 負極部 2a 負極端子 2b リチウム 6 離型剤 G、K 押圧治具 2 Negative electrode part 2a Negative electrode terminal 2b Lithium 6 Release agent G, K Pressing jig

───────────────────────────────────────────────────── フロントページの続き (72)発明者 野末 智久 東京都港区新橋5丁目36番11号 富士電気 化学株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomohisa Nozue 5-11-3 Shimbashi, Minato-ku, Tokyo Fuji Electric Chemical Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 負極活物質であるリチウム(2b)を
円盤状の負極端子(2a)に圧着して成る負極部(2)
を用いて組立られる偏平形非水電解液電池の製造法にお
いて、 上記リチウム(2b)のロッド裁断後のチップを上記負
極端子(2a)の中央付近に仮圧着し、該チップを凹面
状の押圧治具(K)でチップ厚の1/2〜1/4まで仮
成形して略円形の凸状と成し、その後、該チップを平面
状の押圧治具(G)で初厚の1/6以下まで加圧して負
極端子(2a)に圧着し、負極部(2)を形成すること
を特徴とする偏平形非水電解液電池の製造方法。
1. A negative electrode part (2) formed by pressing lithium (2b), which is a negative electrode active material, onto a disk-shaped negative electrode terminal (2a).
In a method for manufacturing a flat non-aqueous electrolyte battery assembled by using the above, a chip after cutting the rod of the lithium (2b) is temporarily press-bonded near the center of the negative electrode terminal (2a), and the chip is pressed in a concave shape. A jig (K) is used to tentatively form 1/2 to 1/4 of the chip thickness to form a substantially circular convex shape, and then the chip is pressed with a flat pressing jig (G) to 1 / th of the initial thickness. A method for manufacturing a flat type non-aqueous electrolyte battery, which comprises pressurizing up to 6 or less and press-bonding to the negative electrode terminal (2a) to form the negative electrode part (2).
【請求項2】 リチウム(2b)を略円形の凸状に仮
成形する前に、押圧治具(K)と当接するリチウム(2
b)の面にプロピレンカーボネート(PC)又は流動パ
ラフィン等、電解液に対し安定な離型剤(6)を塗布す
ることを特徴とする請求項1記載の偏平形非水電解液電
池の製造方法。
2. A lithium (2b) contacting a pressing jig (K) before the lithium (2b) is temporarily formed into a substantially circular convex shape.
The method for producing a flat non-aqueous electrolyte battery according to claim 1, wherein a release agent (6) that is stable to the electrolytic solution, such as propylene carbonate (PC) or liquid paraffin, is applied to the surface of b). .
JP6355694A 1994-03-31 1994-03-31 Manufacturing method of flat type non-aqueous electrolyte battery Expired - Fee Related JP2780634B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6355694A JP2780634B2 (en) 1994-03-31 1994-03-31 Manufacturing method of flat type non-aqueous electrolyte battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6355694A JP2780634B2 (en) 1994-03-31 1994-03-31 Manufacturing method of flat type non-aqueous electrolyte battery

Publications (2)

Publication Number Publication Date
JPH07272717A true JPH07272717A (en) 1995-10-20
JP2780634B2 JP2780634B2 (en) 1998-07-30

Family

ID=13232616

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2780634B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6001138A (en) * 1997-08-22 1999-12-14 Micron Communications, Inc. Methods of forming battery electrodes
US6586912B1 (en) 2002-01-09 2003-07-01 Quallion Llc Method and apparatus for amplitude limiting battery temperature spikes
US6891353B2 (en) 2001-11-07 2005-05-10 Quallion Llc Safety method, device and system for an energy storage device
US7443136B2 (en) 2002-01-09 2008-10-28 Quallion Llc Method and device employing heat absorber for limiting battery temperature spikes
US7592776B2 (en) 2001-11-07 2009-09-22 Quallion Llc Energy storage device configured to discharge energy in response to unsafe conditions
JP2010283116A (en) * 2009-06-04 2010-12-16 Panasonic Corp Method of manufacturing electrochemical capacitor, and electrochemical capacitor manufactured using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6001138A (en) * 1997-08-22 1999-12-14 Micron Communications, Inc. Methods of forming battery electrodes
US6891353B2 (en) 2001-11-07 2005-05-10 Quallion Llc Safety method, device and system for an energy storage device
US7592776B2 (en) 2001-11-07 2009-09-22 Quallion Llc Energy storage device configured to discharge energy in response to unsafe conditions
US6586912B1 (en) 2002-01-09 2003-07-01 Quallion Llc Method and apparatus for amplitude limiting battery temperature spikes
US7443136B2 (en) 2002-01-09 2008-10-28 Quallion Llc Method and device employing heat absorber for limiting battery temperature spikes
US7893659B2 (en) 2002-01-09 2011-02-22 Quallion Llc Method and apparatus for amplitude limiting battery temperature spikes
JP2010283116A (en) * 2009-06-04 2010-12-16 Panasonic Corp Method of manufacturing electrochemical capacitor, and electrochemical capacitor manufactured using the same

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