Lithium batteries have developed rapidly due to many advantages such as high energy density, high output voltage, long service life, low self-discharge rate, etc., and have been widely used in renewable energy, smart grids, distributed power generation, microgrid systems, new energy vehicles, and industrial energy conservation, emergency power supply, household energy storage, warehousing, logistics and other fields.

However, with the mass production and application of lithium batteries, accidents related to lithium battery fires have occurred from time to time. For this reason, the Japanese research team has developed a lithium battery that does not catch fire.

The electrolyte of lithium-ion batteries used in mobile phones and electric vehicles uses flammable organic solvents, so there is a risk of fire. People are trying to find a safer electrolyte material.

On November 24, according to media reports, research teams from Japan’s Yokohama National University and Sumitomo Electric Industries Co., Ltd. use water as the electrolyte and nano-grade molybdenum oxide as the negative electrode of the battery, so that the battery performance reaches a practical level.

This kind of battery has no risk of fire and can be charged quickly. Even if it is repeatedly charged and discharged for 2000 times, the battery capacity is only reduced by less than 30%. Therefore, it is expected to be used in energy storage batteries or short-distance electric vehicles.

As we all know, the main cause of lithium battery fire is battery thermal runaway. When the battery thermal runaway occurs, the battery temperature can quickly rise to 400 ℃ to 1000 ℃, and then fire, explosion and other accidents occur.

The new type of lithium battery developed by the Japanese research team can effectively avoid thermal runaway of the lithium battery, and the electrolyte material it uses is safer. There is no need to worry about fire accidents, and it can be charged quickly. The goal of the research team is to make this new type of battery practical in 3 years. Related research papers were published in the latest issue of the US "Proceedings of the National Academy of Sciences".

Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect substitute for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.

Solar power generation system with lithium battery energy storage system is a very promising clean energy.