As energy demands and environmental concerns continue to rise, new energy vehicles powered by lithium-ion batteries (LIBs) have emerged as a major trend in the automotive industry. With their high operating voltage, large energy density, long cycle life, and fast charging capabilities, LIBs have become a crucial energy source for electric vehicles (EVs). Beyond transportation, these batteries also hold significant potential for applications in portable electronics, military equipment, and aerospace technologies. Despite their numerous advantages, LIBs face considerable challenges in low-temperature environments. Issues such as reduced charging efficiency, increased internal resistance, and the potential formation of lithium dendrites can compromise both performance and safety, ultimately limiting their applicability. To address these challenges, effective thermal management is essential for maintaining battery longevity, ensuring operational safety, and optimizing overall energy efficiency. Among various thermal management strategies, AC heating technology has emerged as a promising solution due to its high efficiency and effectiveness. Building upon the theoretical foundations established in Chaps. 4 and 5 , which explored the electro-thermal coupling model of batteries, existing heating methods, and the limitations of low-temperature heating, this chapter shifts the focus toward the practical implementation of AC heating systems. A comprehensive review of current AC heating solutions is presented, categorizing them into energy injection-based and non-energy injection-based approaches. Using an integrated charger design as a case study, a detailed examination of system topology, control strategies, and simulation processes is provided, with a particular emphasis on battery-integrated AC heating technology. This discussion offers valuable insights into the thermal management performance of LIBs in EVs and other energy storage applications. Additionally, an AC self-heating solution is introduced for integrated external circuits, motor drive systems, and boost-type power battery modules. Key aspects such as system hardware design, critical parameters, and implementation strategies are analyzed, along with a step-by-step application guide. The practical feasibility of these technologies is demonstrated, reinforcing the role of AC heating in maintaining battery performance, safety, and lifespan in low-temperature conditions. By bridging theoretical modeling with real-world technical applications, this chapter provides a structured approach to system verification and engineering implementation. The discussion of AC heating solutions not only enhances the understanding of thermal management in LIBs but also lays the groundwork for future advancements in energy storage and electric vehicle technology.

AC Heating System Implementation

章节
发表日期：

2025年

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Jiangong Zhu,
Ranjun Huang,
Haifeng Dai

摘要

As energy demands and environmental concerns continue to rise, new energy vehicles powered by lithium-ion batteries (LIBs) have emerged as a major trend in the automotive industry. With their high operating voltage, large energy density, long cycle life, and fast charging capabilities, LIBs have become a crucial energy source for electric vehicles (EVs). Beyond transportation, these batteries also hold significant potential for applications in portable electronics, military equipment, and aerospace technologies. Despite their numerous advantages, LIBs face considerable challenges in low-temperature environments. Issues such as reduced charging efficiency, increased internal resistance, and the potential formation of lithium dendrites can compromise both performance and safety, ultimately limiting their applicability. To address these challenges, effective thermal management is essential for maintaining battery longevity, ensuring operational safety, and optimizing overall energy efficiency. Among various thermal management strategies, AC heating technology has emerged as a promising solution due to its high efficiency and effectiveness. Building upon the theoretical foundations established in Chaps. 4 and 5 , which explored the electro-thermal coupling model of batteries, existing heating methods, and the limitations of low-temperature heating, this chapter shifts the focus toward the practical implementation of AC heating systems. A comprehensive review of current AC heating solutions is presented, categorizing them into energy injection-based and non-energy injection-based approaches. Using an integrated charger design as a case study, a detailed examination of system topology, control strategies, and simulation processes is provided, with a particular emphasis on battery-integrated AC heating technology. This discussion offers valuable insights into the thermal management performance of LIBs in EVs and other energy storage applications. Additionally, an AC self-heating solution is introduced for integrated external circuits, motor drive systems, and boost-type power battery modules. Key aspects such as system hardware design, critical parameters, and implementation strategies are analyzed, along with a step-by-step application guide. The practical feasibility of these technologies is demonstrated, reinforcing the role of AC heating in maintaining battery performance, safety, and lifespan in low-temperature conditions. By bridging theoretical modeling with real-world technical applications, this chapter provides a structured approach to system verification and engineering implementation. The discussion of AC heating solutions not only enhances the understanding of thermal management in LIBs but also lays the groundwork for future advancements in energy storage and electric vehicle technology.