The influence of temperature on the discharge capacity of positive lead—acid battery plates. Theory and experiments

✍ Scribed by K. Micka; V. Koudelka

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 432 KB
• Volume: 6
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(81)80036-5

✦ Synopsis

A theoretical expression has been derived for the dependence of the discharge capacity, C, of the positive plate of the lead-acid battery, on the temperature, T, in the form dlnC/dT = (k -l)(dlnK /dT + l/T),

where k is the coefficient of Peukert's equation and K is the specific conductivity of the electrolyte. This formula was confirmed by measurements on SLI battery positive plates.

List of symbols

a+ A 4 c d D,, Dz t td t! T v3, v4 r* 6 K 7 rd Time from the beginning of discharge (s) Discharge time (s) Transference number of H+ ions Absolute temperature (K) Molar volumes of PbOs and PbSO, , respectively (cm3/mol) Mean molal activity coefficient of H,S04 Temperature ("C) Electrolytic conductivity (an-l cm-' ) Dimensionless time equal to t(Dlo + Dm))/2d2 Dimensionless discharge time equal to td(Dlo + Dm)/2d2