JPH056763A - Manufacture of spongy metal porous body for electrode plate - Google Patents
Manufacture of spongy metal porous body for electrode plateInfo
- Publication number
- JPH056763A JPH056763A JP3154410A JP15441091A JPH056763A JP H056763 A JPH056763 A JP H056763A JP 3154410 A JP3154410 A JP 3154410A JP 15441091 A JP15441091 A JP 15441091A JP H056763 A JPH056763 A JP H056763A
- Authority
- JP
- Japan
- Prior art keywords
- porous
- porous body
- average pore
- electrode plate
- pore diameter
- 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- Withdrawn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]
【産業上の利用分野】本発明は、連続した三次元網目構
造を有する極板用スポンジ状金属多孔体の製造方法に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a sponge-like metal porous body for an electrode plate having a continuous three-dimensional network structure.
【０００２】[0002]
【従来の技術】一般的なニッケル−水素電池等の電池用
極板は、活物質を充填させる基体としてスポンジ状金属
多孔体を用いている。極板用スポンジ状金属多孔体は、
厚み方向の平均孔径がほぼ等しいか又は厚み方向の平均
孔径の差が小さいものであり、その平均孔径は活物質を
充填しやすい大きさになっている。活物質の充填を容易
にしてしかも充填量を多くするためには、平均孔径を大
きくすることが有効である。しかしながら平均孔径が大
きくなる程、活物質を充填した後の乾燥、加圧工程で充
填した活物質は脱落しやすくなる。そこで極板用スポン
ジ状金属多孔体の一方の表面部の孔の平均孔径を大幅に
小さくすることが提案された。このように厚み方向の一
方の表面部の平均孔径を他方の表面部の平均孔径よりも
小さくすると、活物質の充填しやすさを損なうことな
く、充填した活物質の脱落を抑制することができる。2. Description of the Related Art A general electrode plate for a battery such as a nickel-hydrogen battery uses a sponge-like metal porous body as a substrate for filling an active material. The sponge-like metal porous body for electrode plates is
The average pore diameters in the thickness direction are substantially the same or the difference between the average pore diameters in the thickness direction is small, and the average pore diameter is a size that allows easy filling of the active material. Increasing the average pore size is effective for facilitating the filling of the active material and increasing the filling amount. However, the larger the average pore size, the easier the active material filled in the drying / pressurizing step after filling the active material is to fall off. Therefore, it has been proposed that the average pore size of the pores on one surface of the sponge-like metal porous body for an electrode plate be significantly reduced. When the average pore diameter of one surface portion in the thickness direction is smaller than the average pore diameter of the other surface portion in this manner, it is possible to suppress the falling of the filled active material without impairing the ease of filling the active material. ..
【０００３】例えば、特開昭６２−１４０３５９号公報
には、発泡ウレタンからなる多孔体材料の片面部（一方
の表面部）にアノードを配置し、電気メッキ法により発
泡ウレタンからなる多孔体材料にニッケルメッキを施こ
してニッケルの骨格部を形成し、メッキが完了した後に
発泡ウレタンを焼消させて多孔体を製造する方法が示さ
れている。多孔体材料の両表面部にアノードを配置して
ニッケルメッキを施すと、多孔体材料全体に亘って略厚
みの等しい骨格部が形成されるのに対して、前述のよう
に多孔体材料の一方の表面部のみにアノードを配置する
と多孔体の一方の表面部から他方の表面部に向かって骨
格部が徐々に形成されていく。そのため、この製造方法
によると、多孔体の他方の表面部から一方の表面部に向
かって平均孔径が徐々に小さくなる極板用スポンジ状金
属多孔体を得ることができる。For example, in Japanese Unexamined Patent Publication (Kokai) No. 62-140359, an anode is arranged on one surface (one surface) of a porous material made of urethane foam, and the porous material made of urethane foam is formed by electroplating. It shows a method for producing a porous body by applying nickel plating to form a nickel skeleton, and after the plating is completed, the urethane foam is burned out. When anodes are arranged on both surface portions of the porous material and nickel plating is performed, a skeleton portion having substantially the same thickness is formed over the entire porous material, while one of the porous material When the anode is arranged only on the surface portion of the porous body, the skeleton portion is gradually formed from one surface portion of the porous body toward the other surface portion. Therefore, according to this manufacturing method, it is possible to obtain a sponge-like metal porous body for an electrode plate in which the average pore diameter gradually decreases from the other surface portion of the porous body toward the one surface portion.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の製造方法では、アノードを配置した表面部に
メッキが必要以上に付着すると、該表面部の骨格部の肉
厚が厚くなりすぎて平均孔径が小さくなりすぎ、多孔体
に活物質を充分に充填できなくなるおそれがある。これ
を避けるために、メッキの付着量を少なくすると、特に
アノードを配置しない表面部の骨格部の厚みが薄くな
り、多孔体の集電効率が低下してしまうおそれがある。
そのため従来の製造方法では、メッキの付着量が適量に
なるようにメッキ電流を調整しながら多孔体を製造しな
ければならず、面倒で複雑な作業を行わなければならな
かった。また、従来の方法で製造した多孔体は、一方の
表面部の平均孔径が他方の表面部の平均孔径よりも小さ
いため、多孔体内部に活物質を充填してから多孔体にセ
パレ―タを組合せるまでは、多孔体の平均孔径が大きい
方の表面部を上に向けて作業を行なわなければならず、
極板の製造の自由度が低下する問題があった。However, in such a conventional manufacturing method, if plating adheres to the surface portion on which the anode is disposed more than necessary, the skeleton portion of the surface portion becomes too thick and the average thickness is increased. There is a possibility that the pore size becomes too small and the active material cannot be sufficiently filled in the porous body. In order to avoid this, if the adhesion amount of plating is reduced, the thickness of the skeleton part of the surface part where the anode is not arranged becomes particularly thin, which may reduce the current collection efficiency of the porous body.
Therefore, in the conventional manufacturing method, the porous body had to be manufactured while adjusting the plating current so that the amount of plating adhered would be an appropriate amount, which required complicated and complicated work. Further, in the porous body produced by the conventional method, since the average pore diameter of one surface portion is smaller than the average pore diameter of the other surface portion, a separator is added to the porous body after the active material is filled inside the porous body. Until they are combined, the work must be performed with the surface part of the larger average pore size of the porous body facing up,
There is a problem that the degree of freedom in manufacturing the electrode plate is reduced.
【０００５】本発明の目的は、表面部の平均孔径が内部
の平均孔径よりかなり小さく、しかも上下方向を逆にし
ても活物質の脱落しにくい極板用スポンジ状金属多孔体
を、簡単な加工作業により製造する方法を提供すること
にある。An object of the present invention is to easily process a sponge-like metal porous body for an electrode plate in which the average pore diameter of the surface portion is considerably smaller than the internal average pore diameter, and the active material is hard to fall off even when the vertical direction is reversed. It is to provide a method of manufacturing by work.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するた
め、本発明では、連続した三次元網目構造を有し且つ厚
み方向の平均孔径がほぼ等しいスポンジ状金属多孔体素
材を三次元網目構造を維持し且つ内部にスプリングバッ
クを発生させるように厚み方向からプレスして、極板用
スポンジ状金属多孔体を製造する。In order to solve the above problems, according to the present invention, a sponge-like metal porous body material having a continuous three-dimensional network structure and having substantially the same average pore diameter in the thickness direction is formed into a three-dimensional network structure. The sponge-like metal porous body for an electrode plate is manufactured by maintaining and pressing from the thickness direction so as to generate spring back inside.
【０００７】[0007]
【作用】発明者は、スポンジ状金属多孔体素材を三次元
網目構造を維持する範囲において厚み方向からプレスし
た場合、プレスする圧力及び速度を適宜に設定すると、
多孔体素材の中央部付近の骨格部には大きなスプリング
バックが発生し、多孔体素材の表面部の骨格部には小さ
なスプリングバックがそれぞれ発生することを見出し
た。スプリングバックが大きいほどプレスにより圧縮し
た部分のプレス後の膨張率は大きくなる。そのため、ス
ポンジ状金属多孔体素材の内部の平均孔径は内部から表
面に向かうに従って平均孔径が徐々に小さくなるように
変化する。したがって本発明によれば、プレスという簡
単な方法で、活物質が脱落しにくくしかも活物質充填率
の高い極板用スポンジ状金属多孔体を得ることができ
る。また、本発明では、スポンジ状金属多孔体の厚み方
向の両方の表面部の平均孔径を中央部の平均孔径よりも
小さくすることができるので活物質を充填した後に、上
下方向を逆にしても活物質が脱落しにくい極板用スポン
ジ状金属多孔体を得ることができる。When the inventor presses the sponge-like porous metal material from the thickness direction in the range where the three-dimensional network structure is maintained, the pressing pressure and speed are set appropriately,
It was found that a large springback occurs in the skeleton near the center of the porous material and a small springback occurs in the skeleton of the surface of the porous material. The larger the springback, the larger the expansion coefficient after pressing of the part compressed by the press. Therefore, the average pore diameter inside the sponge-like porous metal material changes such that the average pore diameter gradually decreases from the inside toward the surface. Therefore, according to the present invention, it is possible to obtain a sponge-like metal porous body for an electrode plate in which the active material is less likely to fall off and the active material filling rate is high, by a simple method such as pressing. Further, in the present invention, since the average pore diameter of both surface portions in the thickness direction of the sponge-like metal porous body can be made smaller than the average pore diameter of the central portion, even after the active material is filled, the vertical direction may be reversed. It is possible to obtain a sponge-like metal porous body for an electrode plate in which the active material does not easily fall off.
【０００８】[0008]
【実施例】以下、本発明をニッケル−水素電池用極板の
極板用スポンジ状金属多孔体を製造する場合に適用した
実施例を図面を参照して説明する。EXAMPLE An example in which the present invention is applied to the case of producing a sponge-like porous metal body for an electrode plate of a nickel-hydrogen battery will be described with reference to the drawings.
【０００９】本実施例では、先ず、発泡ウレタンからな
る多孔体材料の厚み方向の両表面部にアノードを配置し
て、この発泡ウレタンにニッケルメッキを施こして、厚
さ１．６mm，多孔度９７％，平均孔径３００μm のスポ
ンジ状金属多孔体素材を作成した。図１は、このスポン
ジ状金属多孔体素材１を厚み方向に切断したときの部分
断面図である。図１において２は多孔体素材１の中央部
の多孔部であり、３は多孔体素材１の表面部の多孔部で
ある。このように多孔体素材１は、連続した三次元網目
構造を有している。次に、このスポンジ状金属多孔体素
材１の厚み方向の両面上に受面部材を配置した後、多孔
体素材１を三次元網目構造を維持し且つ内部にスプリン
グバックを発生させるように厚み方向からプレスして極
板用スポンジ状金属多孔体１０を得た。具体的にはステ
ンレス板からなる厚み０．３mm×４０mm×８０mmの受面
部材を両面上に配置した多孔体素材１を間隔を１．０mm
に設定した直径１５０mmの一対のローラプレスの間に、
３００mm/secの速度で通過させて多孔体素材１を厚み方
向からプレスして厚み１mmの極板用スポンジ状金属多孔
体を得た。尚、多孔体素材１をプレスする圧力及び速度
は、多孔体素材１の表面部の平均孔径が活物質の充填を
許容する範囲内に入るように設定した。図２は、本実施
例の方法で製造した極板用スポンジ状金属多孔板１０を
厚み方向に切断したときの部分断面図である。図２にお
いて２０は多孔体１０の中央部の多孔部であり、３０は
多孔体１０の表面部の多孔部である。表１は本実施例の
方法で製造したスポンジ状金属多孔体１０の表面部から
中央部へ向かう厚み方向の距離と該距離に位置する多孔
部の平均孔径との関係を示している。In this embodiment, first, anodes are arranged on both surface portions in the thickness direction of a porous material made of urethane foam, and the urethane foam is nickel-plated to have a thickness of 1.6 mm and a porosity. A sponge-like metal porous body material having 97% and an average pore diameter of 300 μm was prepared. FIG. 1 is a partial sectional view of the sponge-like porous metal material 1 cut in the thickness direction. In FIG. 1, reference numeral 2 is a central porous portion of the porous material 1, and 3 is a porous portion of the surface of the porous material 1. As described above, the porous material 1 has a continuous three-dimensional network structure. Next, after arranging the receiving members on both sides in the thickness direction of the sponge-like porous metal material 1, the porous material 1 is maintained in the three-dimensional mesh structure and in the thickness direction so as to generate springback inside. Then, the product was pressed to obtain a sponge-like metal porous body 10 for an electrode plate. Specifically, the porous body material 1 in which a receiving surface member made of a stainless steel plate and having a thickness of 0.3 mm × 40 mm × 80 mm is arranged on both sides has a gap of 1.0 mm.
Between a pair of roller presses with a diameter of 150 mm set to
The porous body material 1 was pressed from the thickness direction by passing it at a speed of 300 mm / sec to obtain a sponge-like metal porous body for a polar plate having a thickness of 1 mm. The pressure and speed for pressing the porous body material 1 were set so that the average pore diameter of the surface portion of the porous body material 1 was within a range in which the active material could be filled. FIG. 2 is a partial cross-sectional view of the sponge-like metal porous plate 10 for an electrode plate manufactured by the method of the present embodiment when cut in the thickness direction. In FIG. 2, 20 is a central porous portion of the porous body 10, and 30 is a porous portion of the surface portion of the porous body 10. Table 1 shows the relationship between the distance in the thickness direction from the surface portion to the central portion of the sponge-like metal porous body 10 manufactured by the method of this example and the average pore diameter of the porous portion located at the distance.
【００１０】[0010]
【表１】 [Table 1]
【００１１】表１に示すように、スポンジ状金属多孔体
１０の中央部（厚み方向の距離０．５mm) の平均孔径は
３００μm であり、この平均孔径はスポンジ状金属多孔
体素材１の中央部の多孔部２の平均孔径と略同じであ
る。これに対して表面部（厚み方向の距離０mm) の平均
孔径は２８５μmであり、中央部の平均孔径に対して５
％も小さくなっている。このように、スポンジ状金属多
孔体を厚み方向からプレスすると表面部の平均孔径を中
央部の平均孔径よりも小さくできる。As shown in Table 1, the average pore diameter of the central portion (distance 0.5 mm in the thickness direction) of the sponge-like porous metal body 10 is 300 μm, and this average pore diameter is the central portion of the sponge-like porous metal material 1. It is approximately the same as the average pore diameter of the porous portion 2. On the other hand, the average pore diameter of the surface portion (distance 0 mm in the thickness direction) is 285 μm, which is 5 with respect to the average pore diameter of the central portion.
% Has also become smaller. Thus, by pressing the sponge-like metal porous body from the thickness direction, the average pore diameter of the surface portion can be made smaller than the average pore diameter of the central portion.
【００１２】次に、活物質粉末８６重量％，結着剤１重
量％，水１３重量％からなるスラリ状活物質を作成し、
このスラリ状活物質を本発明の方法で製造した多孔体
と、従来のメッキを用いた方法で製造した平均多孔度９
５％の多孔体とにそれぞれ真空含浸法で充填した。そし
て各多孔体を乾燥した後、活物質の充填密度を高める加
圧成形を行い、最終的にそれぞれの多孔体からなる極板
を完成した時点で各極板の活物質充填密度を測定した。
測定結果は、従来の方法で製造した多孔体の充填率は９
１％であるのに対して、本発明の方法で製造した多孔体
の充填率は９５％であった。尚、本発明の方法で製造し
た多孔体は、加圧成形により、活物質の充填密度が２．
８g/c.c.から４．２g/c.c.に向上した。また、本発明の
方法で製造した多孔体は、従来の方法で製造した多孔体
に比較して活物質を充填するのに時間がかかったが、一
旦活物質を充填すると多孔体の上下方向の姿勢を変えて
も活物質が脱落しにくいため、極板の製造を容易に行う
ことができた。Next, a slurry-like active material comprising 86% by weight of active material powder, 1% by weight of binder and 13% by weight of water was prepared,
This slurry-like active material was produced by the method of the present invention and the average porosity of 9 produced by the method using conventional plating.
The porous body of 5% was filled with each by the vacuum impregnation method. Then, after drying each porous body, pressure molding for increasing the packing density of the active material was performed, and when the electrode plate composed of each porous body was finally completed, the active material packing density of each electrode plate was measured.
The measurement result shows that the packing rate of the porous body manufactured by the conventional method is 9
While it was 1%, the filling factor of the porous body produced by the method of the present invention was 95%. The porous material produced by the method of the present invention has a packing density of the active material of 2.
It improved from 8g / cc to 4.2g / cc. Further, the porous body produced by the method of the present invention took longer to be filled with the active material than the porous body produced by the conventional method. Since the active material does not easily fall off even if the posture is changed, the electrode plate can be easily manufactured.
【００１３】尚、多孔体素材１の表面部の平均孔径が活
物質の充填を許容する範囲で、しかも多孔体素材１の三
次元網目構造を維持し且つ内部にスプリングバックを発
生できる範囲であれば、多孔体素材１をプレスする圧力
及び速度は任意である。The average pore size of the surface of the porous material 1 should be within a range that allows the filling of the active material, and that the three-dimensional network structure of the porous material 1 be maintained and that springback be generated inside. For example, the pressure and speed of pressing the porous body material 1 are arbitrary.
【００１４】また、本実施例ではローラプレスを用いて
プレスを行ったが、プレスの装置及び方法は任意に選択
できる。また本実施例では、多孔体素材をプレスする際
に、多孔体素材の表面部に受面部材を配置したが、多孔
体素材の表面部全体を略均等にプレスできるプレス装置
を用いるのであれば、必ずしも受面部材を用いる必要は
ない。In this embodiment, the roller press is used for pressing, but the pressing apparatus and method can be arbitrarily selected. Further, in the present embodiment, when pressing the porous body material, the receiving surface member is arranged on the surface portion of the porous body material, but if a pressing device that can press the entire surface portion of the porous body material substantially uniformly is used. It is not always necessary to use the receiving surface member.
【００１５】[0015]
【発明の効果】本発明によれば、プレスという簡単な方
法で、活物質が脱落しにくく、しかも活物質充填率の高
い極板を得ることができる。また本発明によれば、活物
質を充填した後に、上下方向の姿勢を自由に変えても活
物質が脱落しにくい多孔板を得ることができる。According to the present invention, an electrode plate having a high active material filling rate can be obtained by a simple method of pressing, in which the active material does not easily fall off. Further, according to the present invention, it is possible to obtain a porous plate in which the active material does not easily fall off even after the active material is filled and the vertical posture can be freely changed.
【図１】 プレス前のスポンジ状金属多孔体素材の厚み
方向の部分断面図である。FIG. 1 is a partial cross-sectional view in the thickness direction of a sponge-like porous metal material before pressing.
【図２】 本実施例の方法で製造したスポンジ状金属多
孔体の厚み方向の部分断面図である。FIG. 2 is a partial cross-sectional view in the thickness direction of a sponge-like metal porous body manufactured by the method of this example.
１…スポンジ状金属多孔体素材、２…多孔体素材の中央
部の多孔部、３…多孔体素材の表面部の多孔部、１０…
スポンジ状金属多孔体、２０…多孔体の中央部の多孔
部、３０…多孔体の表面部の多孔部、DESCRIPTION OF SYMBOLS 1 ... Sponge-like metal porous body material, 2 ... Porous part of the central part of porous material, 3 ... Porous part of the surface part of porous material, 10 ...
Sponge-shaped metal porous body, 20 ... Porous body in the central portion of the porous body, 30 ... Porous portion in the surface portion of the porous body,
Claims (1)
ジ状金属多孔体素材を三次元網目構造を維持し且つ内部
にスプリングバックを発生させるように厚み方向からプ
レスすることにより極板用スポンジ状金属多孔体を製造
することを特徴とする極板用スポンジ状金属多孔体の製
造方法。Claim: What is claimed is: 1. A sponge-like porous metal material having a continuous three-dimensional network structure is pressed from the thickness direction so as to maintain the three-dimensional network structure and generate springback inside. A method for producing a sponge-like metal porous body for an electrode plate, which comprises producing a sponge-like porous metal body for an electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3154410A JPH056763A (en) | 1991-06-26 | 1991-06-26 | Manufacture of spongy metal porous body for electrode plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3154410A JPH056763A (en) | 1991-06-26 | 1991-06-26 | Manufacture of spongy metal porous body for electrode plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH056763A true JPH056763A (en) | 1993-01-14 |
Family
ID=15583545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3154410A Withdrawn JPH056763A (en) | 1991-06-26 | 1991-06-26 | Manufacture of spongy metal porous body for electrode plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056763A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06243865A (en) * | 1993-02-22 | 1994-09-02 | Furukawa Battery Co Ltd:The | Positive electrode for alkaline secondary battery |
| JPH08291304A (en) * | 1995-02-23 | 1996-11-05 | Mitsubishi Materials Corp | Porous metal plate with large specific surface area |
| JPH08333605A (en) * | 1995-04-03 | 1996-12-17 | Mitsubishi Materials Corp | Porous metallic plate having large specific surface area |
| KR960043320A (en) * | 1995-05-31 | 1996-12-23 | 윤종용 | Method for manufacturing current collector for secondary battery and pole plate |
| JPH09143511A (en) * | 1995-11-29 | 1997-06-03 | Mitsubishi Materials Corp | Porous metallic body having large specific surface area |
| JPH10199520A (en) * | 1997-01-10 | 1998-07-31 | Sanyo Electric Co Ltd | Unsintered nickel electrode for alkaline storage battery |
| US6660224B2 (en) | 2001-08-16 | 2003-12-09 | National Research Council Of Canada | Method of making open cell material |
| US7108828B2 (en) | 2001-08-27 | 2006-09-19 | National Research Council Of Canada | Method of making open cell material |
| JP2018125240A (en) * | 2017-02-03 | 2018-08-09 | トヨタ自動車株式会社 | Method for manufacturing positive electrode for lithium ion secondary battery |
| JP2022116545A (en) * | 2021-01-29 | 2022-08-10 | 本田技研工業株式会社 | Electrode for lithium ion secondary battery, and lithium ion secondary battery |
-
1991
- 1991-06-26 JP JP3154410A patent/JPH056763A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06243865A (en) * | 1993-02-22 | 1994-09-02 | Furukawa Battery Co Ltd:The | Positive electrode for alkaline secondary battery |
| JP2525320B2 (en) * | 1993-02-22 | 1996-08-21 | 古河電池株式会社 | Positive electrode for alkaline secondary battery |
| JPH08291304A (en) * | 1995-02-23 | 1996-11-05 | Mitsubishi Materials Corp | Porous metal plate with large specific surface area |
| JPH08333605A (en) * | 1995-04-03 | 1996-12-17 | Mitsubishi Materials Corp | Porous metallic plate having large specific surface area |
| KR960043320A (en) * | 1995-05-31 | 1996-12-23 | 윤종용 | Method for manufacturing current collector for secondary battery and pole plate |
| JPH09143511A (en) * | 1995-11-29 | 1997-06-03 | Mitsubishi Materials Corp | Porous metallic body having large specific surface area |
| JPH10199520A (en) * | 1997-01-10 | 1998-07-31 | Sanyo Electric Co Ltd | Unsintered nickel electrode for alkaline storage battery |
| US6660224B2 (en) | 2001-08-16 | 2003-12-09 | National Research Council Of Canada | Method of making open cell material |
| US7108828B2 (en) | 2001-08-27 | 2006-09-19 | National Research Council Of Canada | Method of making open cell material |
| JP2018125240A (en) * | 2017-02-03 | 2018-08-09 | トヨタ自動車株式会社 | Method for manufacturing positive electrode for lithium ion secondary battery |
| JP2022116545A (en) * | 2021-01-29 | 2022-08-10 | 本田技研工業株式会社 | Electrode for lithium ion secondary battery, and lithium ion secondary battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980903 |