Wenke Zhang

Title: Innovations by Inventor Wenke Zhang

Introduction

Wenke Zhang is a notable inventor based in Santa Clara, California, recognized for his contributions to battery technology. With a total of four patents to his name, Zhang has made significant advancements in the field of electric vehicles and lithium-ion batteries.

Latest Patents

One of his latest patents focuses on the "State of charge error estimation of battery cells." This invention relates to modifying State of Charge (SoC) calculations within electric vehicles (EVs). The process involves generating a database of data points based on the characteristics of a battery cell at various measured SoCs within a controlled environment. During the operation of an EV, a battery management system (BMS) collects various operating data points, which are then referenced against the database to determine an accurate SoC value. This value is crucial for modifying or altering the SoC calculations by the BMS during EV operation.

Another significant patent is the "Control-oriented physics-based calendar life model for lithium ion cells." This model provides a physics-based approach to determining the state of health of a lithium-ion battery cell. It accounts for parasitic reactions on anode and cathode particles to accurately assess battery degradation. By incorporating electrolyte decomposition in a cathode, this calendar model can predict capacity retention and the substantial rise of cell resistance at high SoC and temperatures. The model is designed to be simple, utilizing only three parameters to determine capacity retention and resistance rise based on temperature, SoC, and time.

Career Highlights

Wenke Zhang has worked with several companies, including Chongqing Jinkang Powertrain New Energy Co., Ltd. and Sf Motors, Inc. His experience in these organizations has contributed to his expertise in battery technology and electric vehicle systems.

Collaborations

Zhang has collaborated with notable professionals in his field, including Ying Liu and Saeed Khaleghi Rahimian. These collaborations have further enhanced his work and innovations in battery technology.

Conclusion

Wenke Zhang's contributions to battery technology and electric vehicles are significant, showcasing his innovative spirit and expertise. His patents reflect a commitment to advancing the efficiency and reliability of battery systems in modern transportation.