An Anhui subsidiary of Shanghai-based new energy vehicle firm NIO released a patent regarding a “cylindrical battery” on Tuesday. According to public information, this patent is expected to solve the problem of a low utilization rate in the effective height of a battery cell, caused by the fact that the existing cylindrical batteries mostly have pole ears at both ends.
The patent abstract shows that the cylindrical battery of the invention comprises a shell, a positive pole, and a core winding assembly installed in the shell with the positive ear and the negative ear arranged on the same side, thus increasing the effective space utilization rate of the battery cell, reducing manufacturing difficulty and improving production efficiency. The positive and negative ears are arranged in a multi-ring distribution to optimize the distribution of the pole ears and reduce the internal…
NIO Unveils Patent for Cylindrical Batteries – Pandaily
