Soaking of Cured Plates Before Formation

Technological Procedures Involved in the Formation of Lead—Acid Battery Plates 

The cured pastes of both positive and negative plates comprise identical mixtures of bivalent lead compounds (3BS, 4BS, PbO, Pb), which cannot create electromotive forces when the pasted plates are assembled into cells. The purpose of the technological process of formation is to convert the cured pastes into electrochemically active porous materials Pb02 in the positive plates and Pb in the negative plates, which are connected mechanically and electrically to the grids. The process of formation can be conducted via two basic technological schemes. 

Lead-Acid Batteries Science and Technology. DOI 10.1016/B978-0-444-52882-7.10009-6 2011 Elsevier B.V. All rights reserved. 

General scheme of the procedures involved in the technological process of formation of lead—acid 

In this chapter we will discuss the processes that take place during soaking. This is the first stage of the technological process of formation, during which reactions of sulfation and hydration proceed in the plates, which affect the subsequent formation processes. 

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