Patent
Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators and method for producing it
TLDR
In this paper, a method for producing a lead acid battery that operates on the oxygen cycle is disclosed, which includes the steps of assembling a cell comprising a positive plate, a negative plate, and a sheet of separator material which is an absorbent, porous filtration medium, so that there is free space between the plates and surfaces of the separator, inserting the cell into a case, introducing into the case a mixture of sulfuric acid and silica including silica from a never dried precipitated silica slurry, causing the sulphuric acid in the mixtureAbstract:
A method for producing a lead acid battery that operates on the oxygen cycle is disclosed. The method includes the steps of: assembling a cell comprising a positive plate, a negative plate, and a sheet of separator material which is an absorbent, porous filtration medium, so that there is free space between the plates and surfaces of the separator, inserting the cell into a case, introducing into the case a mixture of sulfuric acid and silica including silica from a never dried precipitated silica slurry, causing the sulfuric acid in the mixture in the free space to gel, and sealing the case. The sulfuric acid in the mixture in the free space can be caused to gel by an increase in the silica content thereof, by an increase in the specific gravity thereof, or by both an increase in the silica content thereof, and an increase in the specific gravity thereof.read more
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Patent
Multi-region battery separators
A. Ashirgade,Zhiping Jiang +1 more
TL;DR: In this paper, a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator.
Patent
Battery separators comprising inorganic particles
TL;DR: In this article, a non-woven web with a plurality of inorganic particles (e.g., silica) is used to improve electrolyte stratification distance and/or reduce electrolyte filling time.
Patent
Improved absorbent glass mat separators, vrla batteries, and related mehtods of manufacture and use
TL;DR: In this paper, soluble content absorbent glass mat or AGM separators for VRLA, AGM, or VRLA AGM batteries are described. But the authors do not specify the materials used.
Patent
Absorbent glass mat separators, vrla batteries, and related methods of manufacture and use
TL;DR: In this paper, soluble content absorbent glass mat or AGM separators for VRLA, AGM, or VRLA AGM batteries are described. But the authors do not specify the materials used.
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Patent
Sealed lead-acid battery
TL;DR: In this paper, a sealed lead-acid battery consisting of a cell element having positive plates, negative plates and separators, and electrolyte retained within micropore of the cell element is described.
Patent
Sealed lead storage battery
Komaki Akio,Hayakawa Takumi,Tadashi Yoneda,Miura Asahiko,Hironao Wada,Matsubayashi Satoshi,Takemasa Arihiko +6 more
TL;DR: In this paper, an improvement on a sealed lead storage battery was proposed, which comprises a case, positive and negative plates alternately disposed in a case and porous separators between the adjacent plates and electrolyte filled in the case so as to be retained at least in the porous separator.
Patent
Maintenance-free type lead acid
TL;DR: In this article, a maintenance-free type lead acid cell is presented, which is characterized by structurally free, non-self-supporting plates separated from one another with highly absorbent flexible separators containing electrolyte.
Patent
Triterpene derivatives with immunosuppressant activity
TL;DR: The compounds of Formula (I) are useful as immunosuppressive agents as mentioned in this paper, and they can be used as adjacency agents to other immuno-suppressive agents.
Patent
Process for the preparation of precipitated silica, new precipitated silicas containing zinc and their use for the reinforcement of elastomers
TL;DR: In this paper, a new process for the preparation of precipitated silica which has a good dispersibility and very satisfactory reinforcing properties was proposed, which relates to the use of the said silicas as reinforcing fillers for elastomers especially for improving their rheological properties.