397 



Öfversigt af Kongl. Vetenskaps-Akademiens Förhandlingar 1898. N:o 7. 

 Stockholm. 



Short memoir, being a Contribution to the theory of 



voltaic Combinations of Leacl and Peroxyde of Lead 



in an Electrolyte of dilute Sulphuric Acid, commonly 



known as Storage Batteries. 



By John G. A. Rhodin. 



(Communicated 1898 September 14 by G. Mittag-Leffler). 



During the year 1893 to 1896 the writer was engaged in 

 the scientific Controlling of a large factory belonging to the 

 Chloride Electrical Storage Syndicate Limited, and during this 

 time questions of purely scientific nature arose daily which had 

 to be treated before a practical application of the resalts could 

 be made in the process of manufacture. I soon found that the 

 notions and theories current in England and France were to an 

 enormous extent lacking from the point of view of the student 

 of the modern development of physical chemistry. It was how- 

 ever, impossible to apply the theories of van't Hoff, Arrhe- 

 nius, Nernst and others to the treatment of these problems, 

 partly because these theories are applicable only to limit cases 

 of dilution and current densities, and further because the amount 

 of assumption used by these eminent pioneer investigators was 

 so great as to necessitate the determination of constants for 

 every special combination. I then chose to reason on the same 

 lines without however tying myself down to the fundamental 

 formulae used by the physico-chemical school, in as far as nume- 



