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71. 发明专利

JPH05144441A POSITIVE ELECTRODE PLATE FOR LEAD-ACID BATTERY 失效
公开(公告)号：JPH05144441A
公开(公告)日：1993-06-11
申请号：JP30735491
申请日：1991-11-22
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： HIRASAWA IMAKICHI , HIRAKAWA TAKESHI , SATO HIROYUKI , MAEDA KAORU , SHIMIZU SHOJI
IPC分类号： H01M4/14 , H01M4/62
摘要： PURPOSE:To enhance both the chemical formation effect. and the efficiency of active substance utilization by adding to paste a carbon black whose dibutyl phthalate absorbing amount is over a specific value. CONSTITUTION:Carbon black whose dibutyl phthalate absorbing amount is over 300ml/100g, is added to the active material of a positive electrode plate. The carbon black is turned into graphite for enhancing the electron conductiveness of the carbon black itself to lead to improvement of the chemical formation efficiency and for enhancing the sulphuric acid retaining performance of the carbon black itself to lead to improvement of the rate of active substance utilization, and the resultant material is added to the positive electrode plate active material. When paste for positive electrode is adjusted, thereby, it can contain much water, which generates many effective pores in the active material. This enables to obtain a positive electrode plate equipped with enhanced chemical formation efficiency and rate of active material utilization.

72. 发明专利

JPH04248260A MANUFACTURE OF LEAD-ACID BATTERY 失效
公开(公告)号：JPH04248260A
公开(公告)日：1992-09-03
申请号：JP679291
申请日：1991-01-24
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： MATSUMURA TOSHIYUKI , TAMURA KOKI , HIRASAWA IMAKICHI , SAIKI MANABU , KAWAMURA TAKESHI
IPC分类号： H01M4/20 , H01M4/22
摘要： PURPOSE:To shorten curing time to a great extent by applying voltage to each pole plate grid and paste so as to be positive and negative respectively in polarity in a curing process for each pole plate of a lead-acid battery in which lead powder whose degree of oxidation is equal to or more than 75%, is used as active raw material. CONSTITUTION:When each pole plate having sufficient performance through curing in a short time is manufactured, voltage is applied to each pole pate grid and paste so as to be positive and negative respectively in polarity. Namely, positive electrode paste is formed by an usual method by using lead powder whose degree of oxidation is different, the paste thus formed is filled in each grid of a lead battery for a vehicle, it is then cured at a temperature of 50 deg.C and at 98% relative humidity for two hours thereafter, counter electrodes 2 are inserted into each space between the pole pates 1 which are stretched over a frame 3, during curing, and voltage is applied to each pole plate grid and paste so as to be positive and negative respectively in polarity, so that the surface of each grid is thereby oxidized. For example, 1V is applied to a space between each pole plate and each counter electrode 2 while current is limited to 1A. By this constitution, curing time can thereby be shortened, and adhesion between each grid and active material can also be enhanced.

73. 发明专利

JPH0461749A MANUFACTURE OF POSITIVE ELECTRODE FOR LEAD-ACID BATTERY 失效
公开(公告)号：JPH0461749A
公开(公告)日：1992-02-27
申请号：JP17076690
申请日：1990-06-28
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： HIRASAWA IMAKICHI , HIRAKAWA TAKESHI , KAWAMURA TAKESHI
IPC分类号： H01M4/20 , H01M4/16 , H01M4/56 , H01M4/68
摘要： PURPOSE:To meet strong requirements of sealing and small and thin construction by including 0.01-0.1% Sb in electrodeposited PbO2, and forming a alpha-PbO2 layer previously on the surface of a base board of Pb or Pb-Ca type alloy. CONSTITUTION:A layer 2 of alpha-PbO2 is formed on the surface of a base board 1 of Pb or Pb-Ca type alloy electrolytically, and PbO2 powder 3 to be applied to this layer is prepared by electrodepositing from a Pb salt bath containing Sb. This dense alpha-PbO2 layer 2 the interface between the base board 1 and active substance 3 from turning into passive state, which might be caused by intrusion of sulfuric acid to this portion. Further owing to preparation of the PbO2 powder as active substance in the described manner, 0.01-0.1% Sb can be added to PbO2 crystals uniformly, which accomplishes remarkable enhancement of the performance of pos. electrode plate for repeated deep discharges. This meets strong requirements of sealing a lead acid battery and constructing it in a small and thin form of structure.

74. 发明专利

JPH01120768A FULL INSTANTANEOUS-ACTIVATION TYPE LEAD-ACID BATTERY 失效
公开(公告)号：JPH01120768A
公开(公告)日：1989-05-12
申请号：JP27696687
申请日：1987-10-30
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： SHIMIZU SHOJI , HIRASAWA IMAKICHI
IPC分类号： H01M4/14 , H01M4/57
摘要： PURPOSE:To obtain steady performance by retarding the growth of a passivation film formed on the interface of a positive grid and an active material by using tin. CONSTITUTION:A Pb-Sn alloy is prepared by adding 0.01wt.% Sn to Pb and it is powdered to form a positive active material containing Sn in Pb powder. By containing Sn in the positive active material, the growth of a passivation film formed on the interface of a grid and the active material is retarded. When an electrolyte is poured, the voltage of a battery is instantaneously raised and the battery which is always active and has good performance is obtained.

75. 发明专利

JPS63136470A LITHIUM-THIONYL CHLORIDE BATTERY 失效
公开(公告)号：JPS63136470A
公开(公告)日：1988-06-08
申请号：JP28129186
申请日：1986-11-26
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： KITANO TAKAYUKI , HIRASAWA IMAKICHI
IPC分类号： H01M6/14
摘要： PURPOSE:To increase the safety in overdischarge and to stabilize the voltage in the final stage of discharge by making the capacity of a lithium electrode larger twice or more than that of a carbon electrode to limit the capacity of a battery by the carbon electrode. CONSTITUTION:In an electrode group formed by spirally winding a carbon electrode 1 and a lithium electrode 2 with a separator 3 interposed, the theoretical capacity calculated based on the lithium weight of the lithium electrode 2 is made larger twice or more than that calculated based on the volume of the carbon electrode 1 and the weight of carbon black to limit the capacity of a battery by the carbon electrode 1. In the battery having the electrode constitution in which the capacity is limited by the carbon electrode instead of the theoretical maximum capacity, the voltage in the final discharge stage steadily and smoothly drops, and no rapture of the battery arrises even when overdischarge is continued after polarity is converted, and safety is increased.

76. 发明专利

JPS61225760A CONNECTION OF CURRENT COLLECTING TAB 失效
公开(公告)号：JPS61225760A
公开(公告)日：1986-10-07
申请号：JP6630785
申请日：1985-03-29
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： HIRASAWA IMAKICHI
IPC分类号： H01M2/22 , H01M2/30
摘要： PURPOSE:To make positioning in welding easy by installing a slit in pipe- or pin-form positive and negative terminals of primary or secondary battery, inserting a current collecting tab drawn out from an electrode group into the slit, then connecting them. CONSTITUTION:A current collecting tab 5 drawn out form an electrode group 7 is connected to a pipe-form terminal 1 which also serves as an electrolyte pouring hole by spot-welding with a resistant welder to form a primary or secondary battery. A slit 6 for inserting the current collecting tab 5 is installed in a part of the pipe-form terminal 1, and the tab 5 is inserted into the slit 6 for positioning, then they are welded with the resistant welder by using the terminal 1 and the tab 5 as electrodes. Thereby, positioning is made easy and sure, and welding defectives are reduced. The contact area of the terminal 1 and the tab 5 is increased and reliability of welding is improved.

77. 发明专利

JPS60240052A SEALING METHOD OF ENCLOSED CELL 失效
公开(公告)号：JPS60240052A
公开(公告)日：1985-11-28
申请号：JP9407484
申请日：1984-05-11
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： ARAMAKI ISAO , HIRASAWA IMAKICHI
IPC分类号： H01M2/02 , H01M2/04
摘要： PURPOSE:To prevent laser from infiltrating into the cell inside while laser-welding a coupling section and obtain a cell with high quality and high reliability by providing a lug or a recess on the inside of the opening section of a storage can and the outside of a cell cover. CONSTITUTION:A recess 11 is provided on the inside near the opening section of a cell storage can 2a, and a lug 12 is provided on the outside around the folded section of a cell cover 3b at the position coinciding with the recess 11 provided on the storage can 2a. According to this method, the position of the cell cover 3b against the storage can 2a is firmly fixed, and even if a slight gap is generated at a coupling section 10, laser is prevented from infiltrating into the cell during the laser-welding, thereby the breakage of cell component parts due to laser is eliminated.

78. 发明专利

JPS60202664A SEALED TYPE BATTERY 失效
公开(公告)号：JPS60202664A
公开(公告)日：1985-10-14
申请号：JP5866284
申请日：1984-03-27
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： HIRASAWA IMAKICHI , ARAMAKI ISAO
IPC分类号： H01M2/22 , H01M2/30
摘要： PURPOSE:To decrease electrical loss to increase power output by installing a plurality of output terminals in a metal cover of a sealed type battery, and electrically connecting these terminals to an anode or cathode with a plurality of connecting terminals. CONSTITUTION:An anode and a cathode are stacked with a glass fiber separator interposed between them, and they are wound around the center axis to form an electrode plate group 1. The plate group 1 is accommodated into a can 2 which also serves as an anode terminal. The can 2 is sealed with a metal cover 3a to which output terminals 5a-1 and 5a-2 are fixed with a hermetic seal 4. The terminals 5a-1 and 5a-2 are connected to equally divided portions of the cathode in the plate group 1 with connecting terminals 6a-1 and 6a-2. By this manner, a sealed type lithium-thionyl battery is fabricated. By installing a plurality of output terminals, electric loss is decreased, and discharge voltage and duration in high rate discharge are improved.

79. 发明专利

JPS60202658A SEALING OF TERMINAL OF LITHIUM-OXYHALIDE BATTERY 失效
公开(公告)号：JPS60202658A
公开(公告)日：1985-10-14
申请号：JP5923284
申请日：1984-03-26
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： HIRASAWA IMAKICHI
IPC分类号： H01M2/06
摘要： PURPOSE:To improve the reliability of the airtightness of the sealing section formed by sealing the liquid supply hole of a lithium-oxyhalide battery by screwing a vis having a needle-like pointed end into the threaded section of a pipe-like terminal used as the liquid supply hole. CONSTITUTION:When sealing the liquid supply hole of a battery can 5 used as a negative terminal in the process of manufacturing a battery containing lithium as a negative active material and an oxyhalide as a positive active material, a pipe-like terminal 2 having a threaded section in its top end and used as a liquid supply hole is attached to a ceramic hermetic seal 4 for insulating a pipe-like terminal 2 used as a positive terminal from the battery can 5. After electrolyte pouring is completed, a vis 1 having a needle-like pointed end is screwed into the threaded section to seal the liquid supply hole and then the vis 1 is fixed by a resin 3. By the means mentioned above, the pipe-like terminal 2 and the liquid supply hole are unified together and the complete airtightness of the sealing section is achieved, thereby improving the reliability of the sealing.

80. 发明专利

JPS60112249A ELECTROLYTE-HOLDING BODY FOR SEALED LEAD STORAGE BATTERY 失效
公开(公告)号：JPS60112249A
公开(公告)日：1985-06-18
申请号：JP21897083
申请日：1983-11-21
申请人： SHIN KOBE ELECTRIC MACHINERY
发明人： HIRASAWA IMAKICHI
IPC分类号： H01M2/16
摘要： PURPOSE:To improve the close contact between the plate and the electrolyte- holding body by preparing the electrolyte-holding body from a glass powder or short fibers which can conform to the irregular surface of the plate. CONSTITUTION:Glass is used as a material for an electrolyte-holding body because dilute sulfuric acid is used as electrolyte. It is used in the form of a powder or short fibers of several millimeter length so that the electrolyte-holding body conforms to the irregular surface of the plate after a binder contained in the plate is dissolved by electrolyte poured. A water-soluble binder such as corn starch is used as the binder. The content of the binder in the electrolyte-holding body is adjusted to about 5%. When performing the molding of a mixture composed of a glass powder or short glass fiber and the binder, a pressure of at least 20kg/(dm) is applied to the mixture. By the means mentioned above, it is possible to improve the close adhesion between the plate and the electrolyte- holding body. Furthermore, it is not necessary to apply a high pressure during electrolyte puring and it is possible to use a container of a decreased strength.

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