Search results
Results from the WOW.Com Content Network
A 1919 illustration of a Leclanché cell. The Leclanché cell is a battery invented and patented by the French scientist Georges Leclanché in 1866. [1] [2] [3] The battery contained a conducting solution (electrolyte) of ammonium chloride, a cathode (positive terminal) of carbon, a depolarizer of manganese dioxide (oxidizer), and an anode (negative terminal) of zinc (reductant).
The lead-acid battery is still used today in automobiles and other applications where weight is not a big factor. The basic principle has not changed since 1859. In the early 1930s, a gel electrolyte (instead of a liquid) produced by adding silica to a charged cell was used in the LT battery of portable vacuum-tube radios.
The penny battery experiment is common during electrochemistry units in an educational setting. Each cell in a penny battery can produce up to 0.8 volt, and many can be stacked together to produce higher voltages. Since the battery is a wet cell, the effectiveness will be reduced when the electrolyte evaporates.
Kenneth Swezey was born in Brooklyn on 11 June 1904. His mother, Carrie, was 42 at the time and his father, Edwin L. Swezey, was 47. He had a sister, Martha, who was 13 years older and a sister, Anna, who was 25 years older. [2]
Leclanché's "wet cell" (as it was popularly called) was the forerunner to the world's first widely used battery, the zinc–carbon battery. In 1876, Leclanché jellifies the electrolyte of his cell by adding starch to the ammonium chloride, making his cell more portable.
The mat also prevents the vertical motion of the electrolyte within the battery. When a normal wet cell is stored in a discharged state, the heavier acid molecules tend to settle to the bottom of the battery, causing the electrolyte to stratify. When the battery is then used, the majority of the current flows only in this area, and the bottom ...
A wet cell battery has a liquid electrolyte. Other names are flooded cell, since the liquid covers all internal parts or vented cell, since gases produced during operation can escape to the air. Wet cells were a precursor to dry cells and are commonly used as a learning tool for electrochemistry.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more