Farasis unveils battery tech that supports 6C ultra-fast charging
Chinese power battery maker Farasis Energy has unveiled battery technology that supports 6C ultra-fast charging, as automakers demand higher charging speeds.
Jiang Weiran, Farasis’ vice president of research and development and president of its R&D institute, said at a recent forum in Shanghai that the company has optimized its battery design through an in-house developed simulation ROM model, helping large pouch-style batteries achieve 6C fast charging at the system level, according to the text of the presentation released today.
C refers to the battery’s charging multiplier, and 6C means that the battery can theoretically be fully charged in one-sixth of an hour — 10 minutes.
The solution includes a lithium iron phosphate (LFP) battery system that supports 6C ultra-fast charging, and a lithium ternary battery system that supports 5C ultra-fast charging.
Farasis said its SPS (super pouch solution) structural design significantly improves the heat dissipation area, by four times on 5C ternary batteries and 4.8 times on 6C LFP batteries.
The company’s battery design effectively solves the heat dissipation challenges of the tabs under high-rate fast charging, Farasis said.
Based on ROM and fast-charging optimization models, both the 5C Li-ion ternary battery as well as the 6C LFP battery systems are able to control fast-charging temperatures within 50°C, the Chinese power battery maker said.
Under an ultra-fast charging environment of 30°C, the time required to charge from 10 percent to 80 percent SOC was shortened from 11.8 minutes to 10.2 minutes, or 13.5 percent, for the 5C Li-ion ternary battery, and from 10.28 minutes to 8.55 minutes, or 16.8 percent, for the 6C LFP battery, respectively.
According to Farasis, its ROM model optimizes battery design boundaries by simplifying one-factor conditions to obtain core parameters, driving improvements in battery development and design efficiency and performance.
Farasis said.
For pack fast-charging simulations, the ROM model takes only 10 seconds to complete, far less than the 8-10 hours required by traditional commercial software,
The ROM model is able to quickly screen optimal design solutions for lithium ternary, LFP, and sodium battery chemistries by deeply analyzing the working principle of the batteries, the company said.
Farasis is one of China’s largest power battery makers, with 0.19 GWh of batteries installed in January, ranking 14th in China with a 0.48 percent share, according to the China Automotive Battery Innovation Alliance (CABIA).
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Farasis unveils battery tech that supports 6C ultra-fast charging, source
