Energy Storage Technology Using C&D Batteries and Stationary Power Batteries
Invented in 1859, lead-acid batteries use a liquid electrolyte and are still in common use. They store rather small volumes of energy but are reliable and, above all, cheap. In renewable energy systems multiple deep-cycle lead-acid batteries, which provide a steady current over a long time period, are connected together to form a battery bank.
- Alexandria, LA (1888PressRelease) August 06, 2012 - Several types of batteries such as stationary power batteries are used for large-scale energy storage. All consist of electrochemical cells though no single cell type is suitable for all applications.
Invented in 1859, lead-acid batteries use a liquid electrolyte and are still in common use. They store rather small volumes of energy but are reliable and, above all, cheap. In renewable energy systems multiple deep-cycle lead-acid batteries, which provide a steady current over a long time period, are connected together to form a battery bank. Battery banks are already being used to stabilize wind farm power generation.
Flow batteries are emerging energy stationary power storage devices that can serve many purposes in energy delivery systems. They can respond within seconds and deliver large quantities of power. They operate much like a conventional battery, storing and releasing energy through a reversible electrochemical reaction with an almost unlimited number of cycles. The active chemicals are stored in external tanks, and when in use are continuously pumped in a circuit between the reactor and tanks. The great advantage is that electrical storage capacity is limited only by the capacity of the tanks.
Energy cannot be created or destroyed, but it can be saved in various forms. One way to store it is in the form of chemical energy in a C&D battery. When connected in a circuit, a battery can produce electricity.
If you look at a battery, it will have two ends - a positive terminal and a negative terminal. If you connect the two terminals with wire, a circuit is formed. Electrons will flow through the wire and a current of electricity is produced.
Inside the battery, a reaction between the chemicals takes place. But reaction takes place only if there is a flow of electrons. Batteries can be stored for a long time and still work because the chemical process doesn't start until the electrons flow from the negative to the positive terminals through a circuit. C&D Technologies is an expert in battery sales and production.
Large-scale stationary power battery energy storage has been under development for several decades with the successful use of pumped hydroelectric storage as a model.
Several large stationary power battery demonstration projects have been built and tested under a variety of electric utility grid applications. In addition, renewable energy sources such as wind may require energy storage systems. While these applications are new and expanding, the shift toward an expanded role for battery energy storage in the de-regulated electricity market became evident by the late 1980s and early 1990s.
Energy applications involve storage system discharge over periods of hours (typically one discharge cycle per day) with correspondingly long charging periods. Stationary power applications involve comparatively short periods of discharge (seconds to minutes), short recharging periods, and often require many cycles per day.
Generally, the most important requirements have been the need for low cost, flexible designs, proven battery C&D technologies, and reliable performance. While many stationary battery technologies have been proposed and developed for electrical energy storage applications, only a handful have actually been used in fielded systems.