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1. 发明专利

JPH06312241A MOLD FOR CONTINUOUSLY CASTING LEAD BATTERY GRID BODY 失效
公开(公告)号：JPH06312241A
公开(公告)日：1994-11-08
申请号：JP10164693
申请日：1993-04-28
申请人： HITACHI CHEMICAL CO LTD
发明人： AIBA TSUNEMI , ARAI TAKAYUKI , MORINARI RYOSUKE , UCHIDA TOSHIO , DOSONO TOSHINORI
IPC分类号： B22D11/00 , B22D11/06 , B22D25/04
摘要： PURPOSE:To obtain a grid body without the variation of a grid thickness and to provide a lead battery with high reliability by making a carving part along the rotating direction of a drum discontinuous on the same rotating circumference of the drum. CONSTITUTION:Onto the carving part 21 on the surface of a rotated cylindrical mold (drum) 1, molten metal is continuously supplied from a nozzle 4 in contact with the surface thereof. Further, by solidifying this molten metal, the grid body 6 is formed. Then, the carving part 21 along the rotating direction of the drum 1 is made discontinuous on the same rotating circumference of the drum 1. For example, the grid body 6 is formed in 1.6mm thickness and 30 deg. draft of the carving part and carved by ten pieces on the circumference of the drum 1. The material of the drum is made of SUS304 and the material of the nozzle is made of PC250. After 1000hr of cumulative working time, the thicknesses of cross-pieces 9 and frame cross-pieces 91 are not reduced. By this method, projecting part formed accompanying the wear of the nozzle 4 is not developed in the grid body and the grid body is uniformly worn.

2. 发明专利

JPH04206360A MANUFACTURE OF COLLECTOR FOR LEAD ACCUMULATOR 失效
公开(公告)号：JPH04206360A
公开(公告)日：1992-07-28
申请号：JP33374990
申请日：1990-11-30
申请人： HITACHI CHEMICAL CO LTD
发明人： DOSONO TOSHINORI , UCHIDA TOSHIO , SUGIMOTO MITSUAKI
IPC分类号： H01M4/82
摘要： PURPOSE:To manufacture a collector suitable to a lead accumulator having a high energy density by etching a lead or lead alloy foil stuck to an acid resisting film into a collector form, and making a negative electrode plate thinner than a positive electrode plate by etching. CONSTITUTION:A laminated film of a lead or lead alloy foil 4 and an acid resisting film 3 having polyethylene as an outer layer is prepared, an etching resist 5 is formed on the lead or lead alloy foil side surface of the laminated film, etching is conducted by use of a mixture of acetic acid, hydrogen peroxide and water, and the resist is then removed by caustic soda aqueous solution or a solvent such as trichlene. Thereafter, the etching resist is again formed only on a positive electrode collector 1, a negative electrode collector 2 is etched to make the negative electrode collector 2 thinner than the positive electrode collector 1, and the resist is removed to make the positive and negative electrode collectors 1, 2. Thus, the volume ratio and weight ratio of the active material to the whole battery are largely improved, and the energy density of the battery can be enhanced.

3. 发明专利

JPH04206359A MANUFACTURE OF COLLECTOR FOR LEAD ACCUMULATOR 失效
公开(公告)号：JPH04206359A
公开(公告)日：1992-07-28
申请号：JP33374890
申请日：1990-11-30
申请人： HITACHI CHEMICAL CO LTD
发明人： DOSONO TOSHINORI , UCHIDA TOSHIO , SUGIMOTO MITSUAKI
IPC分类号： H01M4/82
摘要： PURPOSE:To manufacture a collector having a high yield of a material suitable for a lead accumulator by printing a creamy solder consisting of powdery lead or a lead alloy and a solvent on a base body worked into a determined form, removing the solvent, and then resolving the lead or lead alloy to form the similar form to the foundation base body. CONSTITUTION:On a copper foil 4 stuck to an acid resisting film 3, an etching resist 5 is formed, ferric chlorite aqueous solution is sprayed to etch the resist non-coat part of the copper foil 4, and the etching resist 5 is then removed to form the pattern of the foundation copper foil 4. On the foundation copper foil 4, a creamy lead alloy powder 6 mixed with a solvent and a flux is printed by use of a metal mask or screen, the solvent is removed by preliminarily heating, the creamy lead alloy powder 6 is then dissolved by reheating and recoagulated. Finally, an epoxy resin 8 is applied near the exposed part of the foundation copper foil 4 and hardened to form a collector. Thus, as the removed part of the lead or lead alloy is eliminated in the manufacture of the collector, the yield of the lead or lead alloy can be highly improved.

4. 发明专利

JPH04206357A MANUFACTURE OF COLLECTOR FOR LEAD ACCUMULATOR 失效
公开(公告)号：JPH04206357A
公开(公告)日：1992-07-28
申请号：JP33374490
申请日：1990-11-30
申请人： HITACHI CHEMICAL CO LTD
发明人： DOSONO TOSHINORI , UCHIDA TOSHIO , SAITO SHINJI , SUGIMOTO MITSUAKI
IPC分类号： H01M4/82
摘要： PURPOSE:To dispense with solvent treatment and waste solution treatment other than etching solution in the process of forming and removing an etching resist by pressing an acid resisting rubber elastic body having a determined form onto lead or a lead alloy to conduct etching, and removing the pressure after the etching to remove the body. CONSTITUTION:A mask consisting of a silicone rubber 3 and a stainless press mold 4 in which the pressing side surface of the silicone rubber 3 has a protruded form, and the press mold side surface has a form further protruded more than that of the rubber, and this mask is pressed onto a lead alloy foil 5 having a resin film 2 stuck to the reverse and dipped in a mixture of acetic acid and hydrogen peroxide, and etching is conducted while stirring the solution. After the etching, the etching solution is removed by washing, and the resin film 2 stuck onto the lead alloy foil 5 is warped from the end and peeled to separate the resist of the silicone rubber 3 from the lead alloy foil 5. Thus, no solvent is used for the formation and removal of the etching resist, and waste solutions other than the etching solution can be eliminated.

5. 发明专利

JPH09306485A HYDROGEN ABSORBING ALLOY AND HYDROGEN ABSORBING ALLOY ELECTRODE FOR ALKALINE SECONDARY BATTERY 失效
公开(公告)号：JPH09306485A
公开(公告)日：1997-11-28
申请号：JP11811496
申请日：1996-05-14
申请人： HITACHI CHEMICAL CO LTD
发明人： DOSONO TOSHINORI , TSURUOKA SHIGEO , INAGAKI MASATOSHI , IGAWA MICHIKO , KOMATSU YOSHIMI
IPC分类号： C22C19/00 , H01M4/38
摘要： PROBLEM TO BE SOLVED: To improve capacity and rapid charge/discharge characteristics of a battery by regulating a crystal size to a prescribed range according to anisotropy of a crystal particles of a major composition phase and using it for an electrode in an allay whose composition is expressed by a fomaula and which is composed of two phases or more. SOLUTION: In an alloy having such a composition and a phase, when a major composition phase is a crystal particle without any anisotropy, the mean crystal particle size is set to 5-100μm, when the major composition phase has anisotropy containing a branched structure, the mean value of the crystal size in the direction crossing at right angles with the longitudinal direction is set to 5-100μm. This constitution reduces the major/subsidiary composition phase interface which increases with the lowering and its too lowering of the discharge capacity caused by major composition phase diffusion controlled current by enlargement of the crystal particle size of the major composition phase, and suppressed lowering of the discharge capacity caused by reduction of trap site of hydrogen. Energy density per volume and weight can be thus enlarged. [In the formula, R is composed of one of B and Co or more, 0

6. 发明专利

JPH06312242A POURING NOZZLE FOR GRID BODY CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH06312242A
公开(公告)日：1994-11-08
申请号：JP10164793
申请日：1993-04-28
申请人： HITACHI CHEMICAL CO LTD
发明人： ARAI TAKAYUKI , AIBA TSUNEMI , MORINARI RYOSUKE , UCHIDA TOSHIO , DOSONO TOSHINORI
IPC分类号： B22D11/00 , B22D11/06 , B22D25/04
摘要： PURPOSE:To prevent the flow-out of molten metal from a pouring nozzle and to stabilize the casting, in a grid body continuous casting machine for lead battery. CONSTITUTION:In order to prevent the flow-out of the molten metal supplied from the pouring nozzle 13 from the reverse direction to the rotating direction (shown in arrow mark) of a drum 2, a cooling plate 4 is fitted as a cooling mechanism fitted outside the nozzle body 13'. The cooling plate 4 and the nozzle body 13' come partial contact with each other, and by providing gaps between the both, heat insulation is attained. The cooling plate 4 has comb-teeth like projections 5 fitted to carving parts 3 at the part faced to the circumferential surface of the drum 2 and further, provides a guide pipe 6 for circulating cooling medium. The comb-teeth like projections 6 prevent the flow-out of the molten metal by dumming up and solidifying the flowing out molten metal.

7. 发明专利

JPH04294845A METHOD FOR CONTINUOUSLY CASTING PLATE BASE BODY FOR BATTERY 失效
公开(公告)号：JPH04294845A
公开(公告)日：1992-10-19
申请号：JP6211791
申请日：1991-03-26
申请人： HITACHI CHEMICAL CO LTD
发明人： MORINARI RYOSUKE , AIBA TSUNEMI , TAMURA KOKI , UCHIDA TOSHIO , DOSONO TOSHINORI , KODAMA HIDEYO
IPC分类号： B22D11/06 , B22D25/04 , H01M4/73
摘要： PURPOSE:To provide a high quality base body in high productivity with this continuous casting method. CONSTITUTION:At the time of supplying the molten alloy 8 of Pb-0.7-Ca-0.5Sn into a molten metal supplying part 4 by using a casting device composed of a columnar mold 1 providing an inscribed part 3 corresponding to base body cross-sectional face on the outer peripheral surface 2 and the molten metal supplying part 4 distributing the molten alloy 8 into the inscribed part 3 and a stainless steel-made endless belt 7 coming into contact with a part of outer periphery of the columnar mold 1 and integrately rotating with the columnar mold 1 at this part, the molten alloy is distributed into the inscribed part 3 in the columnar mold 1 from there, and the molten alloy in the inscribed part 3 is shifted to position coming into contact with the columnar mold 1 and the belt 7 in the unsolidified condition of the molten alloy, and the molten alloy 8 is solidified at the contact part of the columnar mold 1 and the belt 7, and the base body 9 is made to continuously take out from end of the contact part.

8. 发明专利

JPH04206358A MANUFACTURE OF COLLECTOR FOR LEAD ACCUMULATOR 失效
公开(公告)号：JPH04206358A
公开(公告)日：1992-07-28
申请号：JP33374590
申请日：1990-11-30
申请人： HITACHI CHEMICAL CO LTD
发明人： DOSONO TOSHINORI , UCHIDA TOSHIO , SAITO SHINJI , SUGIMOTO MITSUAKI
IPC分类号： H01M4/82
摘要： PURPOSE:To dispense with solvent treatment and waste solution treatment other than etching solution in the formation and removal of an etching resist by forming an acid-resisting rubber elastic body having a determined form on lead or a lead alloy by application and hardening to conduct etching, and mechanically removing this after the etching. CONSTITUTION:On a lead alloy foil 4 having a resin film 2 stuck onto the reverse, a silicone rubber 3 sealant is applied by metal mask printing, left alone in the atmosphere and hygroscopically hardened to form the resist film of the silicone rubber 3. This is dipped in an acetic acid/hydrogen peroxide mixture, and etching is conducted while stirring the solution. After completion of the etching, the etching solution is removed by washing, the resin film 2 is fixed, and the resist surface is rubbed with the other silicone rubber 3' to separate the resist of the silicone rubber 3 from the lead alloy foil 4. Thus, no solvent is used in the formation and removal of the etching resist, and waste solutions other than the etching solution can be eliminated.

9. 发明专利

JPH06312243A NOZZLE FOR CONTINUOUSLY CASTING LEAD BATTERY GRID BODY AND ITS MOLD 失效
公开(公告)号：JPH06312243A
公开(公告)日：1994-11-08
申请号：JP10164893
申请日：1993-04-28
申请人： HITACHI CHEMICAL CO LTD
发明人： AIBA TSUNEMI , ARAI TAKAYUKI , MORINARI RYOSUKE , UCHIDA TOSHIO , DOSONO TOSHINORI
IPC分类号： B22D11/00 , B22D11/06 , B22D25/04
摘要： PURPOSE:To stably provide a grid body having high quality by arranging molten metal pouring holes having the same number as the number of cross-pieces of the grid body in the rotating direction of the drum from the pouring hole adjacent to the inner side thereof. CONSTITUTION:The molten metal 12 is continuously supplied into carving part 3 on the surface of the rotated cylindrical mold (drum) 1. Then the molten metal 12 is solidified to form the grid body 5. In a nozzle 11 used for this grid body, the number of pouring holes 6 for supplying the molten metal 12 is made the same as the number of cross-pieces 9 of the grid body 5 and each pouring hole 6 is arranged in the rotating direction of the drum 1 from the pouring hole 6 adjacent to the inner side thereof. At the mutually faced positions from both end parts on the circumferential surface of the drum 1 carving the grid body shape at least to frame pieces 91 on the circumference of the grid body carving part 3, air venting work 10 is applied. By this method, the grid body having little defect of burr and blow hole, etc., can be supplied with the continuous casting.

10. 发明专利

JPH057999A CONTINUOUS CASTING MACHINE FOR POLE PLATE BASE BODY FOR BATTERY 失效
公开(公告)号：JPH057999A
公开(公告)日：1993-01-19
申请号：JP16296591
申请日：1991-07-03
申请人： HITACHI CHEMICAL CO LTD
发明人： MORINARI RYOSUKE , AIBA TSUNEMI , UCHIDA TOSHIO , DOSONO TOSHINORI
IPC分类号： B22D11/06 , B22D25/04
摘要： PURPOSE:To prevent the development of defect at the time of casting and to facilitate selection of casting condition. CONSTITUTION:A columnar mold 1 having engraving parts 3 corresponding to base body cross section on the outer peripheral surface 2, a molten metal supplying part 4 distributing a molten alloy into the engraving parts 3 and a belt 10 integrally rotating with the columnar mold while contacting with a part of the outer periphery of columnar mold, are the main constituting elements, and one or more between contact positions of the molten metal pouring part and the belt 10 with the columnar mold and contact length of the columnar mold 1 with the belt 10 are made variable.

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