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The festive atmosphere of the New Year has not yet dissipated, and Yixin Feng has ushered in a working day full of hope and challenges. On this special day, we not only kick off a new journey with the booming sound of firecrackers but also hold a warm and meaningful tea party, allowing every employee's voice to be heard, jointly experiencing the power of growth and looking forward to the future glory.（Yixinfeng Group）

In the passage of time, every retrospect and prospect carries countless dreams and strenuous efforts. January 6th, 2025, an otherwise ordinary day, was endowed with extraordinary significance due to the grand convening of Yixinfeng Group's 2024 Annual Summary and 2025 Goals Announcement Ceremony. It has become a glittering memory landmark in the hearts of all Yixinfeng employees.

In 2024, the "low-altitude economy" has emerged as a dark horse and become a hot topic. Many cities have successively issued relevant policy documents and actively explored its development path, attracting widespread attention. So, what exactly is the low-altitude economy?

In the production process of lithium batteries, slurry coating is a crucial process. Its main purpose is to uniformly coat the slurry with good stability, viscosity, and fluidity onto the positive and negative current collectors, which is of great significance for the capacity, consistency, and safety of lithium batteries. However, according to incomplete statistics, the proportion of battery failures caused by the electrode coating process among all lithium battery failures due to various reasons reaches 10% - 15%.

In life, we often contemplate the meaning of hard work. Some people question why we should bother exerting ourselves since effort doesn't always guarantee success. However, the value of hard work cannot be simply measured by success or failure.

In the vast expanse of life's long river, we often lose ourselves under the dazzling light of success or struggle painfully in the dark abyss of failure. And the "Empty Cup Effect", like a brilliant star, illuminates the path ahead of us, guiding us towards a profound awakening of the soul and the infinite possibilities of life.

Hey, you know what ? When we talk about electric vehicles, power tools and other equipment using power batteries, there is a key technology that plays a huge role behind it, that is, power battery equalization management.

In the current technological era, lithium batteries, as the power source for numerous electronic devices, have crucial performance. The internal resistance of lithium batteries, a parameter often overlooked, actually has a profound impact on battery performance. Today, let's delve into the mysterious world of lithium battery internal resistance.
I. What is internal resistance? What does it consist of?
The internal resistance of a lithium battery is not just a simple number. It is composed of ohmic internal resistance and polarization internal resistance.