Top 10 Solid State Battery Companies
What is a solid-state battery?
Solid-state batteries are a type of battery technology. Unlike the lithium-ion batteries and lithium-ion polymer batteries commonly used today, a solid-state battery is a battery that uses solid electrodes and solid electrolytes.
As the scientific community believes that lithium-ion batteries have reached their limits, solid-state batteries have been regarded as batteries that can succeed lithium-ion batteries in recent years. Solid-state lithium battery technology uses a glass compound made of lithium and sodium as a conductive material to replace the electrolyte of previous lithium batteries, greatly increasing the energy density of lithium batteries.
In solid-state ionics, a solid-state battery is a battery that uses solid electrodes and a solid electrolyte. Solid-state batteries generally have lower power density and higher energy density. Because solid-state batteries have a relatively high power-to-weight ratio, they are an ideal battery for electric vehicles.
In 2030, lithium-ion batteries will no longer be the mainstream of electric vehicle batteries, but they will still have a place in some electronic components. According to SNE Research's calculations, my country's solid-state battery market is expected to reach 3 billion yuan in 2025 and 20 billion yuan in 2030.
Traditional liquid lithium batteries are also vividly called "rocking chair batteries" by scientists. The two ends of the rocking chair are the positive and negative poles of the battery, and the electrolyte (liquid) is in the middle. Lithium ions are like excellent athletes, running back and forth at both ends of the rocking chair. During the movement of lithium ions from the positive electrode to the negative electrode and then back to the positive electrode, the charging and discharging process of the battery is completed.
The principle of solid-state batteries is the same, except that the electrolyte is solid, and its density and structure can allow more charged ions to gather at one end, conduct greater current, and thus increase battery capacity. Therefore, with the same power, the size of solid-state batteries will become smaller. Not only that but since there is no electrolyte in solid-state batteries, storage will become easier. When used in large equipment such as automobiles, there is no need to add additional cooling tubes, electronic controls, etc., which not only saves costs but also effectively reduces weight
Advantages of Solid State Batteries
Advantage 1
Light - high energy density. After using all-solid electrolytes, the applicable material system of lithium-ion batteries will also change. The core point is that it is not necessary to use lithium-embedded graphite negative electrodes but to directly use metallic lithium as the negative electrode, which can significantly reduce the stress of the negative electrode material. dosage, the energy density of the entire battery is significantly improved.
Advantage 2
Thin - small size. In traditional lithium-ion batteries, separators and electrolytes are required, which together account for nearly 40% of the battery's volume and 25% of its mass. If they are replaced with solid electrolytes (mainly organic and inorganic ceramic material systems), the distance between the positive and negative electrodes (traditionally filled by separator electrolyte, now filled by solid electrolyte) can be shortened to even just a few to
More than ten microns, the thickness of the battery can be greatly reduced - therefore all-solid-state battery technology is the only way to miniaturize and thin the battery.
Advantage 3
The prospect of flexibility. Even brittle ceramic materials can often be bent when the thickness is reduced to less than a millimeter, and the material becomes flexible. Correspondingly, the flexibility of all-solid-state batteries will also be significantly improved after being thinned and thinned. By using appropriate packaging materials (not rigid shells), the batteries can withstand hundreds to thousands of bends while ensuring performance. No attenuation.
Advantage 4
safer. The following dangers may occur in traditional lithium batteries:
(1) Lithium dendrites may appear when working under high currents, which may pierce the diaphragm and cause short-circuit damage.
(2) The electrolyte is an organic liquid, which undergoes side reactions, oxidative decomposition, and production at high temperatures. Gases and the tendency to combust will be exacerbated. Using all-solid-state battery technology, the above two problems can be directly solved.
Top 10 Solid State Battery Companies
CATL: The world's leading power battery company, which has been deeply involved in solid-state batteries for many years and adopts the sulfide solid-state electrolyte technology route.
BYD: Self-developed solid-state batteries, using oxide technology, its high-end brands may be the first to use self-developed solid-state batteries.
LG Chem: LG Chem is the largest Korean chemical company and is headquartered in Seoul, South Korea. It was the 10th largest chemical company in the world by sales in 2017. The company has eight factories in South Korea and a network of 29 business locations in 15 countries. This network includes a holding company in China, 14 overseas manufacturing subsidiaries, five marketing subsidiaries, seven representative offices, and two R&D centers.
Panasonic: Panasonic is a major Japanese multinational conglomerate corporation, headquartered in Kadoma, Osaka. It was founded by Kōnosuke Matsushita in 1918 as a lightbulb socket manufacturer. In addition to consumer electronics, of which it was the world's largest maker in the late 20th century, Panasonic offers a wide range of products and services, including rechargeable batteries, automotive and avionic systems, industrial systems, as well as home renovation and construction.
Qingtao Energy: China's leading solid-state battery industrialization leader, focusing on the industrial transformation of top new energy material technologies, has realized the industrialization of solid-state lithium batteries and built the country's first solid-state lithium battery production line.
Huineng Technology: A leading solid-state battery company, using lithium ceramic solid-state electrolyte technology, with a planned production capacity of 120GWh.
Weilan New Energy: Focusing on the R&D and production of solid-state batteries, it cooperates with NIO and other car companies, and plans to achieve mass production of all-solid-state batteries in 2024.
Tailan New Energy: Adopting the oxide technology route, the total production capacity can reach 12.2GWh, and has received hundreds of millions of yuan in Pre-B round financing.
Lingxin New Energy: Using gel polymer solid-state electrolyte technology, it plans to build a 20GWh large-capacity gel polymer solid-state battery project.
Ganfeng Lithium: Its subsidiary Ganfeng Lithium has completed the delivery of the first batch of electric vehicles equipped with solid-state batteries and plans to build the largest solid-state battery production base in China.
In recent years, solid-state batteries have attracted the attention of major battery giants around the world as well as many start-ups and capital. There is constant news of technological breakthroughs from various companies, and the industrialization process is steadily advancing.
