JP3031497B2 - Inorganic non-aqueous electrolyte battery - Google Patents
Inorganic non-aqueous electrolyte batteryInfo
- Publication number
- JP3031497B2 JP3031497B2 JP20151291A JP20151291A JP3031497B2 JP 3031497 B2 JP3031497 B2 JP 3031497B2 JP 20151291 A JP20151291 A JP 20151291A JP 20151291 A JP20151291 A JP 20151291A JP 3031497 B2 JP3031497 B2 JP 3031497B2
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- Prior art keywords
- negative electrode
- height
- positive electrode
- battery
- electrolyte battery
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- Y02E60/12—
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- Primary Cells (AREA)
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、正極活物質のオキシハ
ロゲン化物が電解液の溶媒を兼ねる無機非水電解液電池
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inorganic nonaqueous electrolyte battery in which an oxyhalide of a positive electrode active material also functions as a solvent for an electrolyte.
【０００２】[0002]
【従来の技術】塩化チオニル、塩化スルフリル、塩化ホ
スホリルなどのオキシハロゲン化物を正極活物質に用
い、アルカリ金属を負極に用い、炭素多孔質成形体を正
極に用い、上記正極活物質のオキシハロゲン化物が電解
液の溶媒を兼ねる無機非水電解液電池は、エネルギー密
度が高く、低温でも作動するなど、優れた特性を有して
いる。2. Description of the Related Art An oxyhalide such as thionyl chloride, sulfuryl chloride, phosphoryl chloride or the like is used as a positive electrode active material, an alkali metal is used as a negative electrode, a carbon porous molded body is used as a positive electrode, and the oxyhalide of the above positive electrode active material is used. The inorganic nonaqueous electrolyte battery, which also functions as a solvent for the electrolyte, has excellent characteristics such as high energy density and operation even at a low temperature.
【０００３】ところで、この無機非水電解液電池は、そ
の組立工程を図２を参照しつつ説明すると、電池ケース
２の内周面にリチウムなどのアルカリ金属を圧着して負
極１を円筒状に形成し、その内周側にセパレータ４を配
置し、底部絶縁材１１を電池ケース２の底部に配置した
後、中央部に正極３として円柱状の炭素多孔質成形体を
挿入し、その上方から押圧して、炭素多孔質成形体を下
方向に押圧すると共に径方向外方へ膨出させ、その外周
面をセパレータ４の内周面に圧着させる工程を経て、電
池組立が行われていた。By the way, the assembling process of this inorganic non-aqueous electrolyte battery will be described with reference to FIG. 2. The negative electrode 1 is formed into a cylindrical shape by pressing an alkali metal such as lithium on the inner peripheral surface of a battery case 2. After forming the separator 4 on the inner peripheral side thereof and arranging the bottom insulating material 11 on the bottom of the battery case 2, a columnar carbon porous molded body as the positive electrode 3 is inserted into the center portion, and from above. The battery assembly has been carried out through a process of pressing the carbon porous molded body downward and swelling radially outward and pressing the outer peripheral surface thereof to the inner peripheral surface of the separator 4.
【０００４】そのため、この無機非水電解液電池では、
正極３の高さより負極１の高さを高くする方が電池組立
が行いやすく、その結果、ほとんどの電池が正極３の高
さより負極１の高さの方が高い状態に作製されていた。Therefore, in this inorganic non-aqueous electrolyte battery,
When the height of the negative electrode 1 was higher than the height of the positive electrode 3, battery assembly was easier. As a result, most of the batteries were manufactured in a state where the height of the negative electrode 1 was higher than the height of the positive electrode 3.
【０００５】すなわち、押圧前の炭素多孔質成形体の高
さが負極１の高さより高いと、炭素多孔質成形体を上方
から押圧したときに、炭素多孔質成形体が径方向外方に
逃げて短絡発生の原因になるので、押圧前の炭素多孔質
成形体の高さを負極１の高さと同じか、または負極１の
高さより若干低くしておく方が、組立が容易であるから
である。That is, if the height of the carbon porous molded body before pressing is higher than the height of the negative electrode 1, when the carbon porous molded body is pressed from above, the carbon porous molded body escapes radially outward. Since the height of the porous carbon compact before pressing is the same as or slightly lower than the height of the negative electrode 1, it is easier to assemble because it may cause a short circuit. is there.
【０００６】その結果、前記のように、ほとんどの電池
が、正極３の高さより負極１の高さが高くなっているの
が現状である。As a result, as described above, in most batteries, the height of the negative electrode 1 is higher than the height of the positive electrode 3 at present.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、負極１
の高さと正極３の高さとの差が大きくなると、重負荷で
放電した場合、特に放電終期には、負極１のアルカリ金
属のイオン化が電池反応に追いつかなくなり、負極の利
用率が低下する。However, the negative electrode 1
When the difference between the height of the negative electrode 1 and the height of the positive electrode 3 is large, when the battery is discharged under a heavy load, especially at the end of discharge, the ionization of the alkali metal of the negative electrode 1 cannot catch up with the battery reaction, and the utilization rate of the negative electrode decreases.
【０００８】したがって、本発明は、負極の利用率の低
下を抑制した無機非水電解液電池を提供することを目的
とする。Accordingly, an object of the present invention is to provide an inorganic non-aqueous electrolyte battery in which a decrease in the utilization of the negative electrode is suppressed.
【０００９】[0009]
【課題を解決するための手段】本発明は、負極の高さと
正極の高さとの差が負極の高さの５〜１０％に規制する
ことによって、電池組立の容易さを維持しながら、負極
の利用率の低下を抑制したものである。SUMMARY OF THE INVENTION According to the present invention, the difference between the height of the negative electrode and the height of the positive electrode is restricted to 5 to 10 % of the height of the negative electrode, thereby maintaining the ease of battery assembly while maintaining the ease of battery assembly. This suppresses a decrease in the utilization rate.
【００１０】[0010]
【実施例】つぎに、実施例をあげて本発明をより具体的
に説明する。なお、実施例では、リチウム−塩化チオニ
ル系の無機非水電解液電池について説明するが、本発明
はその場合のみに限られるものではない。Next, the present invention will be described more specifically with reference to examples. In the examples, a lithium-thionyl chloride-based inorganic nonaqueous electrolyte battery will be described, but the present invention is not limited to this case.
【００１１】実施例１ 図１に示すような構造で、負極１の高さと正極３の高さ
との差が負極１の高さの５％のリチウム−塩化チオニル
系の無機非水電解液電池を作製した。この電池の詳細を
図１を参照しつつ説明する。EXAMPLE 1 A lithium-thionyl chloride-based inorganic non-aqueous electrolyte battery having a structure as shown in FIG. 1 and having a difference between the height of the negative electrode 1 and the height of the positive electrode 3 of 5% of the height of the negative electrode 1 was used. Produced. The details of this battery will be described with reference to FIG.
【００１２】図中、１は負極、２は電池ケース、３は正
極、４はセパレータ、５は電解液、６は正極集電体、７
は電池蓋である。In the drawing, 1 is a negative electrode, 2 is a battery case, 3 is a positive electrode, 4 is a separator, 5 is an electrolytic solution, 6 is a positive electrode current collector, 7
Is a battery cover.
【００１３】上記電池蓋７は、環状のボディ８と環状の
絶縁層９と中央部の正極端子１０とを有していて、ボデ
ィ８の外周部は電池ケース２の開口端部に溶接されてい
る。そして、１１は底部絶縁材、１２は上部絶縁材であ
る。The battery lid 7 has an annular body 8, an annular insulating layer 9, and a positive electrode terminal 10 at the center. The outer periphery of the body 8 is welded to the open end of the battery case 2. I have. 11 is a bottom insulating material and 12 is an upper insulating material.
【００１４】上記負極１は、厚さ１．０ｍｍのシート状
のリチウムを有底円筒状の電池ケース２の内周面に圧着
することにより形成されていて、円筒状をしており、そ
の高さは３１．６ｍｍである。The negative electrode 1 is formed by pressing a sheet of lithium having a thickness of 1.0 mm onto the inner peripheral surface of a cylindrical battery case 2 having a bottom and has a cylindrical shape. The height is 31.6 mm.
【００１５】電池ケース２は、ステンレス鋼製で、その
内周面に負極１のリチウムが圧着することにより、負極
端子としての機能を備えている。The battery case 2 is made of stainless steel, and has a function as a negative electrode terminal when lithium of the negative electrode 1 is press-bonded to the inner peripheral surface thereof.
【００１６】上記正極３は、アセチレンブラックを主成
分とし、これに黒鉛とポリテトラフルオロエチレンを添
加した炭素質を主材とする材料の多孔質成形体、いわゆ
る炭素多孔質成形体からなり、円柱状をしていて、その
高さは３０ｍｍである。The positive electrode 3 is made of a porous molded body of a material mainly composed of acetylene black and a carbonaceous material to which graphite and polytetrafluoroethylene are added, which is a so-called carbon porous molded body. It is columnar and has a height of 30 mm.
【００１７】セパレータ４は、ガラス繊維不織布からな
り、円筒状をしていて、上記負極１と正極３とを隔離し
ている。The separator 4 is made of a glass fiber non-woven fabric, has a cylindrical shape, and separates the negative electrode 1 from the positive electrode 3.
【００１８】電解液５は、塩化チオニルに支持電解質と
してＬｉＡｌＣｌ4（四塩化アルミニウムリチウム）を
１．２モル／リットル溶解した塩化チオニル溶液からな
り、塩化チオニルは上記のように電解液の溶媒であると
ともに正極活物質でもある。The electrolyte 5 comprises a thionyl chloride solution in which 1.2 mol / l of LiAlCl 4 (lithium aluminum tetrachloride) is dissolved as a supporting electrolyte in thionyl chloride. Thionyl chloride is a solvent for the electrolyte as described above. It is also a positive electrode active material.
【００１９】このように塩化チオニルが正極活物質とし
て用いられていることからも明らかであるように、上記
正極３はそれ自身が反応するものではなく、正極活物質
の塩化チオニルと負極１からイオン化して溶出してきた
リチウムイオンとの反応場所を提供するものである。As is apparent from the fact that thionyl chloride is used as the positive electrode active material, the positive electrode 3 does not react by itself, but ionizes from the positive electrode active material thionyl chloride and the negative electrode 1. It provides a place for reaction with the lithium ions eluted.
【００２０】正極集電体６はステンレス鋼棒からなり、
電池蓋７は前記のようにボディ８と絶縁層９と正極端子
１０を有している。The positive electrode current collector 6 is made of a stainless steel rod,
The battery cover 7 has the body 8, the insulating layer 9, and the positive electrode terminal 10 as described above.
【００２１】ボディ８はステンレス鋼で形成されてい
て、その立ち上がった外周部が前記電池ケース２の開口
端部と溶接により接合されている。The body 8 is made of stainless steel, and its raised outer peripheral portion is joined to the open end of the battery case 2 by welding.
【００２２】絶縁層９はボディ８の内周側にガラスで形
成されていて、この絶縁層９はボディ８と正極端子１０
とを絶縁するとともに、外周面でその構成ガラスがボデ
ィ８の内周面に融着し、内周面でその構成ガラスが正極
端子１０の外周面に融着していて、ボディ８と正極端子
１０との間をシールしている。The insulating layer 9 is formed of glass on the inner peripheral side of the body 8.
And the constituent glass is fused to the inner peripheral surface of the body 8 on the outer peripheral surface, and the constituent glass is fused to the outer peripheral surface of the positive electrode terminal 10 on the inner peripheral surface. The seal with the space 10 is sealed.
【００２３】正極端子１０はステンレス鋼製で、その一
部は電池組立時はパイプ状をしていて電解液注入口とし
て使用され、その上端部を電解液注入後にその中空部内
に挿入された正極集電体６の上部と溶接して封止するこ
とにより形成されたものである。The positive electrode terminal 10 is made of stainless steel, a part of which is formed in a pipe shape at the time of assembling the battery and is used as an electrolyte inlet, and the upper end thereof is inserted into the hollow portion after the electrolyte is injected. It is formed by welding and sealing the upper part of the current collector 6.
【００２４】底部絶縁材１１はガラス繊維不織布からな
り、正極３と負極端子を兼ねる電池ケース２とを絶縁し
ている。また、上部絶縁材１２は上記底部絶縁材１１と
同様のガラス繊維不織布からなり、正極３と負極端子を
兼ねる電池蓋７のボディ８とが直接接触しないように絶
縁している。The bottom insulating material 11 is made of a glass fiber non-woven fabric, and insulates the positive electrode 3 from the battery case 2 also serving as a negative electrode terminal. The upper insulating material 12 is made of the same glass fiber nonwoven fabric as the bottom insulating material 11 and insulates the positive electrode 3 and the body 8 of the battery lid 7 also serving as a negative electrode terminal so as not to come into direct contact.
【００２５】[0025]
【００２６】[0026]
【００２７】実施例２ 負極１の高さと正極３の高さとの差が負極１の高さの１
０％である以外は、実施例１と同様の無機非水電解液電
池を作製した。Example 2 The difference between the height of the negative electrode 1 and the height of the positive electrode 3 is one of the height of the negative electrode 1.
Except for 0%, the same inorganic non-aqueous electrolyte battery as in Example 1 was produced.
【００２８】すなわち、この実施例２の電池において
は、負極１の高さが３３．３ｍｍであり、正極３の高さ
が３０ｍｍである。That is, in the battery of Example 2 , the height of the negative electrode 1 is 33.3 mm, and the height of the positive electrode 3 is 30 mm.
【００２９】比較例１ 負極１の高さと正極３の高さとの差が負極１の高さの１
９％である以外は、実施例１と同様の無機非水電解液電
池を作製した。Comparative Example 1 The difference between the height of the negative electrode 1 and the height of the positive electrode 3 was 1 of the height of the negative electrode 1.
Except for 9%, the same inorganic nonaqueous electrolyte battery as in Example 1 was produced.
【００３０】すなわち、この比較例１の電池は、図２に
示すとおりであり、負極１の高さが３７ｍｍで、正極３
の高さが３０ｍｍであって、負極１の高さが正極３の高
さよりかなり高くなっている。That is, the battery of Comparative Example 1 is as shown in FIG. 2, in which the height of the negative electrode 1 is 37 mm and the height of the positive electrode 3 is
Is 30 mm, and the height of the negative electrode 1 is considerably higher than the height of the positive electrode 3.
【００３１】比較例２ 負極１の高さと正極３の高さとの差が負極１の高さの１
５％である以外は、実施例１と同様の無機非水電解液電
池を作製した。Comparative Example 2 The difference between the height of the negative electrode 1 and the height of the positive electrode 3 was 1 of the height of the negative electrode 1.
Except for 5%, an inorganic nonaqueous electrolyte battery similar to that of Example 1 was produced.
【００３２】すなわち、この比較例１の電池において
は、負極１の高さが３５．３ｍｍであり、正極３の高さ
が３０ｍｍである。That is, in the battery of Comparative Example 1, the height of the negative electrode 1 was 35.3 mm, and the height of the positive electrode 3 was 30 mm.
【００３３】つぎに、上記実施例１〜２および比較例１
〜２の電池を２０℃、３００Ω定抵抗で放電して放電電
気量を測定し、負極の理論電気量に対する負極の利用率
を算出した。その結果を表１に示す。Next, the above Examples 1 and 2 and Comparative Example 1
The batteries of Nos. 1 to 2 were discharged at 20 ° C. and a constant resistance of 300Ω to measure the amount of discharged electricity, and the utilization rate of the negative electrode with respect to the theoretical amount of electricity of the negative electrode was calculated. Table 1 shows the results.
【００３４】[0034]
【表１】 [Table 1]
【００３５】表１に示すように、（Ｈ1 −Ｈ2 ）／Ｈ1
×１００、つまり、負極１の高さと正極３の高さとの差
が負極１の高さの５〜１０％である実施例１〜２の電池
は、負極の利用率が９３％以上であり、負極の利用率の
低下が少なかった。As shown in Table 1, (H 1 −H 2 ) / H 1
× 100, that is, the batteries of Examples 1 and 2 in which the difference between the height of the negative electrode 1 and the height of the positive electrode 3 is 5 to 10 % of the height of the negative electrode 1, the utilization rate of the negative electrode is 93% or more; The decrease in the utilization of the negative electrode was small.
【００３６】なお、上記の実施例では、正極活物質とし
て塩化チオニルを用い、負極にリチウムを用いた場合に
ついて説明したが、正極活物質としては、塩化チオニル
以外にも、塩化スルフリル、塩化ホスホリルなどの常温
（２５℃）で液体のオキシハロゲン化物を用いることが
でき、また、負極には、リチウム以外にも、ナトリウ
ム、カリウムなどのアルカリ金属を用いることができ
る。In the above embodiment, the case where thionyl chloride was used as the positive electrode active material and lithium was used as the negative electrode was described. In addition to thionyl chloride, sulfuryl chloride, phosphoryl chloride, and the like may be used as the positive electrode active material. An oxyhalide liquid at room temperature (25 ° C.) can be used, and an alkali metal such as sodium or potassium can be used for the negative electrode in addition to lithium.
【００３７】また、実施例では、電解液として塩化チオ
ニルにＬｉＡｌＣｌ4 を溶解させたものを用いた場合に
ついて説明したが、電解液には、上記組合せ以外にも、
塩化チオニル、塩化スルフリル、塩化ホスホリルなどの
オキシハロゲン化物にＬｉＡｌＣｌ4 、ＬｉＡｌＢ
ｒ4 、ＬｉＧａＣｌ4 、ＬｉＢ10Ｃｌ10などの支持電解
質を溶解させたものを用いることができる。なお、電解
液の調製にあたっては、ＬｉＡｌＣｌ4 などの支持電解
質は、ＬｉＣｌとＡｌＣｌ3 をオキシハロゲン化物に添
加した電解液中でＬｉＡｌＣｌ4 の形で存在（ただし、
イオン化してＬｉ+ イオンとＡｌＣｌ4 -イオンとで存
在）するようにしてもよい。Further, in the embodiment, the case where a solution obtained by dissolving LiAlCl 4 in thionyl chloride was used as the electrolytic solution has been described.
Oxyhalides such as thionyl chloride, sulfuryl chloride, phosphoryl chloride and the like can be added to LiAlCl 4 , LiAlB
A material in which a supporting electrolyte such as r 4 , LiGaCl 4 or LiB 10 Cl 10 is dissolved can be used. Incidentally, In the preparation of the electrolyte, supporting electrolyte, such as LiAlCl 4 is present in the form of LiAlCl 4 in an electrolytic solution with the addition of LiCl and AlCl 3 in oxyhalide (however,
It may be ionized to exist as Li + ions and AlCl 4 − ions).
【００３８】さらに、実施例では、電池ケース２に有底
で円筒状のものを用いたが、電池ケース２は角筒状のも
のなど、円筒状以外の形状のものであってもよい。そし
て、実施例では、電池ケース２に円筒状のものを用いた
関係で、負極１やセパレータ４が円筒状で、正極３が円
柱状であるなど、電池の各構成部材が円筒状の電池ケー
ス２に適した形状のものを用いたが、電池ケース２が円
筒状以外の形状のものである場合には、各構成部材は電
池ケース２の形状に適するように作製したものを用いれ
ばよい。Further, in the embodiment, the battery case 2 has a cylindrical shape with a bottom, but the battery case 2 may have a shape other than a cylindrical shape, such as a rectangular cylindrical shape. In the embodiment, since the negative electrode 1 and the separator 4 are cylindrical and the positive electrode 3 is cylindrical, the respective components of the battery are cylindrical. Although the shape suitable for the battery case 2 is used, when the battery case 2 has a shape other than the cylindrical shape, each component may be manufactured so as to be suitable for the shape of the battery case 2.
【００３９】また、実施例では、絶縁層９をガラスで構
成したものを用いた場合について説明したが、絶縁層９
はセラミックスで構成したものであってもよい。In the embodiment, the case where the insulating layer 9 is made of glass is used.
May be made of ceramics.
【００４０】[0040]
【発明の効果】以上説明したように、本発明では、負極
１の高さと正極３の高さとの差を負極１の高さの５〜１
０％に規制することによって、電池組立の容易さを維持
しながら、負極の利用率の低下の少ない無機非水電解液
電池を提供することができた。As described above, in the present invention, the difference between the height of the negative electrode 1 and the height of the positive electrode 3 is 5 to 1 of the height of the negative electrode 1.
Maintain ease of battery assembly by regulating to 0 %
While, it is possible to provide a small inorganic non-aqueous electrolyte battery with lowering of the utilization factor of the negative electrode.
【図１】本発明の無機非水電解液電池の一例を示す断面
図である。FIG. 1 is a sectional view showing an example of an inorganic non-aqueous electrolyte battery according to the present invention.
【図２】本発明外の無機非水電解液電池の一例を示す断
面図である。FIG. 2 is a cross-sectional view showing an example of an inorganic non-aqueous electrolyte battery outside the present invention.
【符号の説明】 １ 負極 ２ 電池ケース ３ 正極 ４ セパレータ ５ 電解液[Description of Signs] 1 Negative electrode 2 Battery case 3 Positive electrode 4 Separator 5 Electrolyte
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−307667（ＪＰ，Ａ) 特開 昭64−60959（ＪＰ，Ａ) 特開 平２−144852（ＪＰ，Ａ) 特開 昭61−47071（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 6/00 - 6/52 H01M 4/06 - 4/12 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-307667 (JP, A) JP-A-64-60959 (JP, A) JP-A-2-144852 (JP, A) JP-A 61-307 47071 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) H01M 6/00-6/52 H01M 4/06-4/12
Claims (1)
活物質および電解液の溶媒とし、 負極１と、正極３と、セパレータ４と、電解液５を有
し、 上記負極１は、有底筒状の電池ケース２の内周面にそっ
て配置された筒状のアルカリ金属からなり、 上記正極３は、上記電池ケース２の中央部に配置された
柱状の炭素多孔質成形体からなり、 上記負極１と正極３との間に、セパレータ４が配置して
いる無機非水電解液電池において、 負極１の高さと正極３の高さとの差が、負極１の高さの
５〜１０％であることを特徴とする無機非水電解液電
池。An oxyhalide which is liquid at normal temperature is used as a positive electrode active material and a solvent for an electrolytic solution. The negative electrode comprises a negative electrode, a positive electrode, a separator, and an electrolytic solution. The positive electrode 3 is formed of a columnar carbon porous molded body disposed at the center of the battery case 2, and is formed of a cylindrical alkali metal disposed along the inner peripheral surface of the battery case 2. In the inorganic nonaqueous electrolyte battery in which the separator 4 is disposed between the negative electrode 1 and the positive electrode 3, the difference between the height of the negative electrode 1 and the height of the positive electrode 3 is the height of the negative electrode 1.
An inorganic nonaqueous electrolyte battery characterized by being 5 to 10 % .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20151291A JP3031497B2 (en) | 1991-07-15 | 1991-07-15 | Inorganic non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20151291A JP3031497B2 (en) | 1991-07-15 | 1991-07-15 | Inorganic non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0521073A JPH0521073A (en) | 1993-01-29 |
| JP3031497B2 true JP3031497B2 (en) | 2000-04-10 |
Family
ID=16442275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20151291A Expired - Fee Related JP3031497B2 (en) | 1991-07-15 | 1991-07-15 | Inorganic non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3031497B2 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05124198A (en) * | 1991-11-05 | 1993-05-21 | Seiko Epson Corp | Ink jet head and its manufacture |
| JP4276329B2 (en) * | 1999-05-10 | 2009-06-10 | パナソニック株式会社 | Inkjet head |
| JP3885226B2 (en) * | 2001-05-31 | 2007-02-21 | ブラザー工業株式会社 | Inkjet head and inkjet recording apparatus |
| JP3494171B2 (en) * | 2001-08-02 | 2004-02-03 | セイコーエプソン株式会社 | Ink jet recording head and ink jet recording apparatus |
| JP5076299B2 (en) * | 2004-09-24 | 2012-11-21 | ブラザー工業株式会社 | Liquid ejector |
| JP2006281777A (en) * | 2005-03-08 | 2006-10-19 | Fuji Xerox Co Ltd | Liquid droplet ejection head and liquid droplet ejection device |
| JP4904910B2 (en) * | 2006-05-01 | 2012-03-28 | コニカミノルタホールディングス株式会社 | Method for manufacturing liquid jet head and liquid jet head |
| JP5114988B2 (en) * | 2007-03-22 | 2013-01-09 | 富士ゼロックス株式会社 | Droplet discharge head and droplet discharge apparatus |
| JP4855992B2 (en) * | 2007-03-30 | 2012-01-18 | 富士フイルム株式会社 | Liquid circulation device, image forming apparatus, and liquid circulation method |
| JP2008254199A (en) * | 2007-03-30 | 2008-10-23 | Fujifilm Corp | Ink jet recorder |
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1991
- 1991-07-15 JP JP20151291A patent/JP3031497B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0521073A (en) | 1993-01-29 |
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