Lead-acid battery construction
AssigneeArcactive Limited
InventorsShane Christie, Yoon San Wong, Grigory Titelman, John Abrahamson
Life of this patent
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Abstract
Batteries comprise a carbon fiber electrode construction of the invention and have improved DCA and/or CCA, and/or may maintain DCA with an increasing number of charge-discharge cycles, and thus may be particularly suitable for use in hybrid vehicles.
Claims17
A lead-acid battery or cell including at least one (non-composite or composite) electrode comprising as a current collector a conductive fibre material comprising, when fully charged, voidage (being the fractional volume occupied by pores between the lead and conductive fibres) of at least about 0.3, and a mass loading ratio of lead to the mass of conductive fibres, when converted to volume ratio, in the range above 0.7:1 to about 15:1 (each over at least a major fraction of the electrode).
A lead-acid battery or cell including at least one (non-composite or composite) electrode comprising as a current collector a conductive fibre material comprising, when fully charged, voidage (being the fractional volume occupied by pores between the lead and conductive fibres) of at least about 0.3, and a mass loading ratio of lead to the mass of conductive fibres, when converted to volume ratio, in the range about 1:1 to about 10:1 (each over at least a major fraction of the electrode).
Dependencies are inferred from the claim text.