โ Scribed by John A. Mills
No coin nor oath required. For personal study only.
The desire of many companies to enter the growing market of valve-regulated batteries (also known as sealed lead/acid) requires a higher level of control in virtually all the stages of manufacture. Formation charging and charge conditioning is a particular case in point. Whether the valve-regulated battery is of the starved-electrolyte or gelled-electrolyte type, the final stages of formation and charge conditioning require careful attention to control the cell voltage. Charge rates that exceed the oxygen-recombination rate will cause excess gassing and thus reduce the available electrolyte. This, in turn, reduces battery life and, in the case of gelled-electrolyte batteries, causes improper cracking of the gel1 and concomitant reduction in capacity, performance and life. Valve-regulated batteries require charging equipment that can automatically regulate charge/discharge current and voltage. Given the requirement for multiple steps of battery conditioning, computer control provides a totally effective way to control the voltage, current, time, ampere hours and charge/discharge functions without operator assistance.
๐ SIMILAR VOLUMES
A bnef review LS gven of the tistoo of the research and development of sealed lead/ acid battenes dunng the 30 years smce, m 1959, the Yuasa Battery Co mtroduced a small-sized sealed battery as the power supply for portable televlslon sets In 1965, Yuasa began the full-scale mass production and sale