Kuaidi Technology reported on November 7 that all-solid-state batteries are considered to be the ultimate solution for lithium batteries and have currently become the hottest research direction.
OEMs including Toyota, Hyundai, Volkswagen, Mercedes-Benz, etc.
, as well as Ningde Times.
Battery factories within the company are investing a lot of money and personnel in related research and development.
According to the latest report from “Late Auto”, Ningde Times has increased its investment in research and development of all-solid-state batteries this year, and has expanded its all-solid-state battery research and development team to more than 1000 people.
Currently, it focuses on the sulfide route and has recently entered the trial production of 20Ah samples.
stage.
People familiar with the matter said that the current plan in Ningde Times can achieve the energy density of ternary lithium batteries to 500 Wh/kg, which is more than 40% higher than existing batteries, but the charging speed and cycle life have not yet reached expectations.
The trial-production of all-solid-state battery samples usually starts from 1Ah and continues to expand the capacity of individual batteries: the task at the 1Ah sample stage is to test the performance of battery materials.
the 10Ah sample stage mainly tests the individual performance of the battery.
the 20Ah sample stage means that the battery plan is initially finalized and entered the stage of production technology exploration.
Zeng Yuqun, chairman of Ningde Times, divided the research and development progress of solid-state batteries into nine levels.
He said at the Power Battery Conference in September this year that Ningde Times is currently at level 4, and the goal is to increase it to level 7-8 in 2027 to achieve all-solid state batteries are produced in small batches.
It is worth mentioning that in April this year, Wu Kai, chief scientist of Ningde Times, said at the International Battery Technology Exchange Conference that Ningde Times has built a 10Ah all-solid-state battery performance verification platform, and there are technical advances in the positive and negative materials, processes and manufacturing equipment of all-solid-state batteries.
Nowadays, we are entering the trial production stage of 20Ah samples.
If safety and performance problems can be solved on samples at this stage, the rest will be mainly manufacturing engineering problems.
These tasks can be effectively advanced by increasing manpower investment and the number of experiments.
, “For 1000 people, the per capita labor cost is calculated as 1 million yuan, and the annual salary is 1 billion yuan.
Before this, most solid-state battery companies could not even build laboratories with a budget of several hundred million yuan.
” One practitioner said, 
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