摘要:
A titanium grid is used to support the positive electrode of lead peroxide while the negative porous lead electrode is supported on either a copper or titanium grid in a lead-lead-acid storage battery. A small quantity of titanyl sulfate is added to the aqueous sulfuric acid electrolyte to inhibit dissolubility of the titanium therein. In one battery embodiment the electrolyte is immobilized by gelling and confined between the electrodes while the assembly is surrounded with an insulating wrapping and sealed hermetically in a quantity of cured epoxy resin.
摘要:
A COMPOSITE BATTERY PLATE GRID AND PROCESS FOR FORMING SAME THE GRID BEING FORMED FROM A FAN-LIKE CONDUCTOR AND A GRATE-LIKE NONCONDUCTOR BONDED ONE TO THE OTHER BY A PLURALITY OF FUSION-INTERLOCKED JOINTS.
摘要:
Greater uniformity of particle size and free-running properties are achieved in the production of granular material for lead storage battery electrodes by adding water or sulfuric acid to a mixture of granules of lead and lead oxide to produce a paste which is pressed through a foraminous body such as a filter cloth and the resulting granules dried by permitting free fall through a heated gaseous drying medium. Novel apparatus for carrying out the process is also disclosed.
摘要:
Leady dust which usually results from the handling of pasted lead-acid storage battery plates is substantially reduced by coating the surface of the pasted plate with a water soluble polymeric compound which does not interfere with the plate''s electrical capabilities. Preferably, the water soluble polymeric compound is a polyvinyl alcohol, polyethylene oxide, alkyl cellulose, acrylic resins or water soluble starches which is applied either as an aqueous solution or a fine powder or film of the compound directly to the wet surface of the pasted plate. Additives such as viscosity modifiers, plasticizers, extenders and antioxidants can be added with the water soluble polymeric compound.
摘要:
A method of making a battery plate comprises the steps of thermally oxidizing the surface of a lead current collector, containing a maximum of 3 weight percent antimony, to form an interlocking porous layer primarily of PbO at least about 1/4 mil thick, applying porous positive active material paste onto the PbO layer, sulfating the PbO layer and the applied positive active material paste with dilute H2SO4 to intermediately form a continuous active material layer, and anodizing the continuous active material layer in dilute H2SO4 to form a homogeneous final layer of PbO2 interlocked and firmly attached to the lead current collector.
摘要翻译:一种制造电池板的方法包括以下步骤:将含有最多3重量%的锑的引线集电器的表面热氧化,以形成主要为至少约1/4密耳厚的PbO的互锁多孔层, 将正极活性物质浆料粘附到PbO层上,用稀H 2 SO 4硫酸化PbO层和施加的正极活性物质浆料,以形成连续的活性物质层,并在稀H 2 SO 4中阳极氧化连续活性物质层以形成均匀的最终的PbO2层 互锁并牢固地连接到引线集电器。
摘要:
The negative active material for a storage cell having an acid electrolyte, whose positive is constituted by the electrochemical system PbO2/H2SO4/PbSO4 is composed of molybdenum oxides such that the average value of the valency be comprised between 4 and 6. The oxides concerned are, more particularly, mixed oxides of MoO2 and MoO3. The oxygen reducing system thus obtained may be as follows:
摘要:
A METHOD IS DESCRIBED FOR PRODUCING THE NEGATIVE (PB) ELECTRODE OF A LEAD-ACID BATTERY. THESE NAGATIVE ELECTRODES ARE PREPARED BY ELECTROLYTIC REDUCTION OF TETRABASIC LEAD SULFATE (4PBO.PBSO4) TO WHICH A SMALL AMOUNT OF EXPANDER HAS BEEN ADDED. THERE ARE SEVERAL ADVANTAGES TO USING TETRABASIC LEAD SULFATE AS THE PASTE MATERIAL FOR NEGATIVE ELECTRODES. FOR EXAMPLE, IT CAN BE SYNTHESIZED IN LARGE BATCH QUANTITIES OUTSIDE THE BATTERY GRID WHERE REACTION CONDITIONS CAN BEPRECISELY CONTROLLED. IT CAN BE CHARACTERIZED AND SPECIFIED AS A UNIQUE CHEMICAL COMPOUND. IT CAN BE STORED FOR LONG PERIODS WITHOUT DETERIORATION. ACID NEED NOT BE ADDED IN MAKING THE PASTE MATERIAL FROM THE TETRABASIC LEAD SULFATE. THE PASTED NAGATIVE PLATES ARE CURED BY SIMPLE AIR DRYING WITH LITTLE CONTROL OF TEMPERATURE OR HUMIDITY TO PRODUCE PLATES WITHOUT CRACKS.
摘要:
A LEAD ACID STORAGE BATTERY WHEREIN THE ELECTROLYTE IS IN GEL FORM. A SODIUM SILICATE SOLUTION IS MIXED WITH A SULPHURIC ACID OF APPROXIMATELY 1:310 SPECIFIC GRAVITY IN THE RATIO OF FROM 1:6 TO 1:10 AND IMMEDIATELY THEREAFTER IS POURED INTO A LEAD CELL STORAGE BATTERY IN WHICH POROUS GLASS FIBER SEPARATORS MAINTAIN THE SPACE BETWEEN THE POSITIVE AND NEGATIVE PLATES. A GEL ELECTROLYTE FORMS THE SHORTLY THEREAFTER. A SPACE IS MAINTAINED BETWEEN THE GEL AND THE TOP OF THE BATTERY TO ACCOMODATE A LIQUID PHASE WHICH FORMS FROM THE GEL.
摘要:
A method for detecting mispositioned parts in assemblies of parts wherein the orientation of one of the parts of an assembly of parts is to be controlled relative to at least one other part in the assembly of parts. The method includes applying a lightreflective-marking pigment to a part whose orientation is to be controlled. The marking pigment is applied to the part at a time when its orientation is known and prior to its assembly with at least one other part of the assembly of parts. An examination of assembled parts is made by a light-sensing device, and by the response of the light-sensing device to the presence or absence of light reflected from the marking pigment, mispositioned parts in the assembly of parts are detected. In particular, the method disclosed is applicable to checking the orientation of storage battery cell elements in their containers.