What are the bottlenecks and challenges in mass production of sodium ions?

A big reason behind this is that the technical route of sodium-ion batteries has not yet been clear.

From the perspective of technological development, there are currently three cathode materials available for sodium-ion batteries: layered oxide, polyanion and Prussian blue materials. Due to the different advantages and disadvantages of the three major technical routes, as well as different market demands and response speeds, the industrialization progress also differs.

In addition, the sodium-ion battery products that have already begun mass production have various combinations in the selection of positive and negative electrode materials and electrolytes. The “hundred schools of thought” of mainstream manufacturers’ technical solutions have not yet emerged with a significantly “dominant” technology. plan. In addition, there are obvious trade-offs between different technical routes in terms of cycle life, charging rate, energy density, cost, low-temperature performance, etc., and a product that can achieve a balanced performance of various indicators has not yet been formed.

Technical differences lead to different materials for the sodium battery positive electrode, negative electrode, and electrolyte used by various battery manufacturers. At the same time, the development of anode materials is limited by the lack of mainstream carbon source products. In the field of electrolytes, there are no mature commercial products of sodium salt. In addition, the market’s acceptance of sodium-ion batteries has not yet reached the expected level, forcing manufacturers to maintain small-scale production, thus affecting the improvement of the industrial chain of sodium-ion battery material suppliers.

The technical route is not yet clear, the supply chain is not fully prepared, and the production process is immature, resulting in the cost advantage of sodium-ion batteries not yet being highlighted.

Of course, energy density is also one of the key bottlenecks that restricts the mass production of sodium-ion batteries.

The ionic radius of sodium ions is larger than that of lithium ions, resulting in lower embedding efficiency in the electrode material and greater volume expansion. In addition, the relative mass of sodium is larger than that of lithium, which reduces the stored energy per unit battery mass, thus resulting in a natural disadvantage in the energy density of sodium-ion batteries.

Due to low energy density, it is difficult for sodium-ion batteries to replace lithium-ion batteries in some application scenarios that require higher energy density (such as electric vehicles and consumer electronics). The market space for these application scenarios is vast and it is the large-scale industrial production of sodium-ion batteries. The future carrier of applications.

Here are a few questions we need to explore:

1.In view of the bottlenecks and challenges currently encountered by sodium-ion batteries, when will the breakthrough point of mass production arrive?

2.How can we quickly reduce costs and turn the theoretical cost advantage of sodium-ion batteries into practical advantages?

3.In terms of materials science, can we find more efficient cathode and cathode materials for sodium-ion batteries?

4.Is there still room for breakthrough in the energy density of sodium-ion batteries?

What other potential application scenarios need to be explored?

Shenzhen Behemoth New Energy Co.,Ltd. was founded by a senior team in the battery industry. It is a high-tech enterprise that provides energy storage battery systems, power battery systems, and various customized power solutions and products for users around the world. It has independent intellectual property rights and core technologies.

We are adhering to the spirit of “Being sincerely in business and winning the world with integrity”, customer-oriented, quality- based, and do our best to develop and produce new energy products, and achieve “carbon peak” and “carbon neutral” for the world. Goal contribute!

Please click here for more products: www.behemothbatteries.com or sent an email to nicole@behemothbatteries.com