초록 ▼

A sealed gas recombining lead-acid cell with absorbed electrolyte is produced by assembling unformed plates and high porosity glass mat separator whose surface area is from 0.2-1.7 m2/g, adding a limited quantity of acid into the cell, and then either prior to or after sealing of the cell electroche

A sealed gas recombining lead-acid cell with absorbed electrolyte is produced by assembling unformed plates and high porosity glass mat separator whose surface area is from 0.2-1.7 m2/g, adding a limited quantity of acid into the cell, and then either prior to or after sealing of the cell electrochemically forming the plates of the cell in situ. High rate performance of the cell is significantly improved over cells using conventional high surface area glass separators.

대표청구항 ▼

A method for producing a normally sealed gas recombining lead-acid electrochemical cell having absorbed electrolyte, comprising: assembling a cell stack of electrochemically unformed lead-containing plates and interleaved highly porous microfine glass fiber separator having a surface area of from ab

A method for producing a normally sealed gas recombining lead-acid electrochemical cell having absorbed electrolyte, comprising: assembling a cell stack of electrochemically unformed lead-containing plates and interleaved highly porous microfine glass fiber separator having a surface area of from about 0.2 to about 1.5 m2/g as determined by the BET method; inserting the cell stack into a container so that the unformed plates and separator are mutually pressed together; metering a controlled quantity of acid electrolyte into the cell so that the electrolyte is substantially fully absorbed in the pores of the plates and separator; electrochemically forming the plates of the cell in situ, whereby individual pore volumes of the plates and separator are less than fully filled with electrolyte; and prior to or after this forming step sealing the cell.