Nickel Based Batteries and Flow Batteries

Nickel based batteries

The nickel–cadmium battery (Ni–Cd battery or NiCad battery) is a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes. 

Nickel based batteries have been used in large-scale energy storage projects as they perform well in all types of temperatures. Nickel-Cadmium (NiCd) is the most common Nickel based battery technology used. They are more suitable for off-grid installation as they are a reliable backup system and don't require regular maintenance but lack of maintenance will reduce their cycle counts.

However, they have low specific energy compared to newer systems and have a high self-discharge. They are also subject to memory effects and the low cell voltage of those batteries mean that many cells are required to achieve high voltage.

Flow batteries

Flow batteries are an emerging technology in the energy storage sector. 

A flow battery, or redox flow battery (after reduction–oxidation), is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids that are pumped through the system on separate sides of a membrane.

They contain a water-based electrolyte liquid that flows between two separate chambers, or tanks, within the battery. When charged, chemical reactions occur which allow the energy to be stored and subsequently discharged. These batteries are now beginning to rise in popularity.

Their larger size makes them more expensive than the other battery types. The high price, combined with the large size, makes it hard to adapt them to residential use.

Energy storage is the future and now is the time to reap the benefits of technology and renewable energy. Deciding on the battery storage technology will impact the whole power system use and longevity. Hope this article will help you find the most suitable solar battery to meet your need.

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