Fuel Cells
In the late 1900s, a new type of electrochemical power device emerged that is believed by some scientists and engineers to hold promise as an alternative energy source: the fuel cell. Hydrogen Fuel The...
Category: Cells and Batteries
Cells and Batteries
Photovoltaic Cells and Batteries
The photovoltaic (PV) cell is different from any electrochemical cell. It’s also known as a solar cell. This device converts visible light, infrared (IR), and/or ultraviolet (UV) directly into electric current. Solar Panels Several,...
Nickel-Based Cells and Batteries
Nickel-based cells include the nickel-cadmium (NICAD or NiCd) type and the nickel-metal-hydride (NiMH) type. Nickel-based batteries are available in packs of cells. These packs can be plugged into equipment, and sometimes form part of...
Lead-Acid Batteries
You’ve seen the basic configuration for a lead-acid cell. This has a solution of sulfuric acid, along with a lead electrode (negative) and a lead-dioxide electrode (positive). These cells are rechargeable. Automotive batteries are...
Miniature Cells and Batteries
In recent years, cells and batteries—especially cells—have become available in many different sizes and shapes besides the old cylindrical cells, transistor batteries, and lantern batteries. These are used in wristwatches, small cameras, and various...
Grocery Store Cells and Batteries
The cells you see in grocery stores, department stores, drugstores, and hardware stores provide 1.5 V, and are available in sizes known as AAA (very small), AA (small), C (medium large), and D (large)....
Electrochemical Energy
Early in the history of electrical science, laboratory physicists found that when metals came into contact with certain chemical solutions, voltages appeared between the pieces of metal. These were the first electrochemical cells. A...