Will lithium-ion batteries the solvent is NMP be upgraded to lithium-ion flow batteries? ! | ZOLSEM

In the new energy storage industry, in addition to the widely used lithium-ion batteries using NMP solvent (N-methylpyrrolidone) as one of the raw materials, are there more advanced and more flexible batteries? The ZESHENG team believes that yes, of course there is! Flow batteries could be a more advanced type of battery in the future. It is also a rechargeable battery, and is divided into all-vanadium flow battery, lithium-ion flow battery and lead-acid flow battery. Among them, lithium-ion flow batteries combine the advantages of lithium-ion batteries and flow batteries. In the future, they may be more suitable for the rapidly developing modern society than pure lithium-ion batteries. The ZESHENG team, which has been focusing on the production and supply of NMP solvent (N-methylpyrrolidone) for more than 10 years, comprehensively organizes and analyzes, what is a flow battery!

【What is a flow battery? 】

Flow battery is an electrochemical energy storage technology proposed by Thaller in 1974, which is a new type battery. The flow battery is composed of a point stack unit, an electrolyte, an electrolyte storage and supply unit, and a management control unit. It is a high-performance battery that separates the positive and negative electrolytes and circulates them separately; It is a new energy product with the characteristics of wide range and long cycle life.

Redox flow battery is a new type of large-capacity electrochemical energy storage device that is being actively researched and developed. It differs from batteries that typically use solid-material electrodes or gas electrodes, where the active material is a flowing electrolyte solution. Its most notable feature is the large-scale power storage. Under the situation of rising calls for the widespread use of renewable energy, it is foreseeable that flow batteries will usher in a period of rapid development.

The ZESHENG team believes that no matter how these batteries are developed and upgraded, they are inseparable from the supply of raw materials. As one of the raw materials for battery production, NMP solvent is still irreplaceable. Some companies may be able to use water as an alternative solvent, but NMP is more widely used solvent, and it makes the battery more stable. At this point, the editor has made a video last week to analyze and explain, and you are welcome to watch “The Impact of NMP Impurities on Battery Performance”.

[What are the classifications of flow batteries? 】

Flow batteries can be divided into all-vanadium flow batteries, lithium-ion flow batteries and lead-acid flow batteries according to different electrode active materials.

• All-vanadium redox flow battery is a new type of power storage device, which can not only be used as an energy storage device for solar and wind power generation, but also can be used for grid peak regulation. All-vanadium flow batteries can improve the stability of the power grid and ensure the security of the power grid.
• Zinc-bromine battery is also a kind of flow energy storage battery, which belongs to energy-based energy storage and can be charged and discharged with large capacity and long time. And it has an inherent advantage in cost (that is, cheap). Zinc-bromine flow battery China has successfully developed the first zinc-bromine flow energy storage system through independent innovation, and has realized the independent production of key materials such as diaphragms, plates and electrolytes for zinc-bromine batteries.
• Lithium-ion flow battery is a newly developed chemical energy storage battery technology. It combines the advantages of lithium-ion batteries and flow batteries, and is a new type of green rechargeable battery with independent output power and energy storage capacity, high energy density and low cost.

The editor learned from professionals that the flow battery is different from the traditional battery. The liquid electrolyte of the flow battery is stored externally; and the energy storage medium of the flow battery is an aqueous solution, which avoids the potential safety hazard of battery explosion. The flow battery has higher safe performance, longer life and wider application. And lithium-ion flow batteries, which combine the advantages of lithium-ion batteries and flow batteries, should have more promising prospects in the future. Focusing on the production and supply of NMP solvent (N-methylpyrrolidone), the Smart Fortress & Zesheng New Materials team can foresee that the new energy industry will shine in the future, and we look forward to working with you to contribute to the development of the industry.