Europe, the United States, Japan, and South Korea have opened up the car power solid-state battery track, and domestic companies are chasing them, and their technical routes are different.
Many batteries and related companies are also working on solid-state batteries. China’s current solid-state power battery research is not lagging behind, and the number of articles published in world scientific journals has ranked first in the world.
At present, it is necessary to strengthen government support and guidance, industry-university-research cooperation, upstream and downstream cooperation, and market-oriented industrial chain construction.
Automotive power solid-state batteries
Semi-solid battery
A series of actions by related companies have aroused great concern in the industry. A high-class pure electric vehicle equipped with a semi-solid battery to achieve a driving range of over 1,000 kilometers, which is double the first-generation model.
Coincidentally, before this, another pure electric car was equipped with a 150kWh semi-solid battery with an energy density of 360Wh/kg, and the driving range would exceed 1,000 kilometers.
At present, the semi-solid battery is a solution that can quickly realize industrialization under the premise of relatively mature technology and technology.
All-solid-state battery
in May 2020, Volkswagen (China) Investment Co., Ltd. announced that it will invest about 1.1 billion euros in shares of Chinese lithium battery manufacturers.
The industrialization of all-solid-state batteries has a series of technical problems that have not been solved globally. Among domestic companies, battery companies are developing semi-solid batteries.
Moreover, in view of the current rapid growth in market demand for power batteries and the difficulty of instantaneous industrialization of all-solid-state batteries, many domestic power battery companies have begun to turn to semi-solid batteries that can achieve mass production faster.
“We have given up the R&D of all-solid-state battery technology and chose a solid-liquid hybrid semi-solid battery route.” said Hu Qichao, the head of battery company SES, which represents the realistic choice of some companies with similar conditions.
At present, domestic power battery companies have their own choices based on their own and market realities. “From an enterprise perspective, there are three main choices in China.” Luo, a researcher at the New Energy Industry Innovation Research Center, said in an interview with a reporter from China Auto News.
One is to take the solution of semi-solid battery, the other is to choose all-solid-state battery.
Comparing Chinese and foreign companies, there are differences in the choice of technology .
At present, most companies in Europe, America, Japan, and South Korea still have all-solid-state batteries in their R&D goals, while some domestic companies choose semi-solid batteries and pay more attention to the immediate market applications in order to meet the needs of domestic car companies.
