With the decrease of traditional fossil energy use, it has become the consensus of the world to develop renewable energy, such as solar energy, on a large scale. There is a dramatic worldwide growth in the usage of solar power in recent years. Solar power evolved from a niche market of small-scale applications to a mainstream electricity source. The output power of a photovoltaic power station is influenced by many factors, such as the performance of photovoltaic panels, meteorological conditions, operating conditions, and so on. The development of photovoltaic power generation is restricted due to its strong randomness.
To follow these trends, portable power energy storage products come out in the electronic markets. The portable power applications, because of their low but steady market growth, can be classified as large and reliable markets, even though the markets for some consumer electronics applications like digital cameras and camcorders are stagnating. Portable Power Energy Storage Systems can provide a variety of application solutions along the entire value chain of the electrical system, from generation support to transmission and distribution support to end-customer uses.
A Portable Power battery is any battery, button cell, a battery pack that is sealed, can be hand-carried, is neither an industrial nor an automotive battery. The main technology used today in Portable Power Energy Storage Systems is the Lead-acid batteries. The mass production of Portable Power Energy Storage Systems using Li-ion batteries is expected to be achieved massively productions in 2020 for solar battery systems, which already entered the market energy. Lithium-ion batteries will increasingly replace the lead-acid batteries until 2020. Most portable power energy storage systems for solar battery systems currently use LFP/graphite-based lithium-ion batteries. Costs, efficiency, cyclical and calendar lifetime are the main factors influencing the choice of one or another battery type. Lithium-ion batteries have the highest energy density of rechargeable battery systems in the market. With the service life and calendar life associated with them, their use has extended from portable electronic applications to electric vehicles and stationary energy storage systems. The reuse of automotive batteries in stationary energy storage installations is a new trend.
Nowadays, the lightweight, high-energy and high power lithium-ion batteries are being used for more and more portable power applications, users have many choices to get the best suitable portable power while using the powerful energy source. Lithium-ion batteries are designed with integrated passive safeguards and active safeguards for cell, module, and pack level designs. Lithium-ion batteries enable high energy density for storage capacity and specific power for power bursts than competing technologies, making it the battery technology of choice to power our future. These batteries offer a sustainable and affordable energy storage technology that promotes e-mobility, reduces global greenhouse gasses and diversifies the world’s energy position.