Framework and Classification of Battery System Architectures

Abstract

In this paper, battery system architectures are methodologically derived in order to find the key type differences. In a first step, the system levels are identified and distinguished. In order to be able to completely cover the solution space of battery system architectures, a distinction is also made between mono- and multifunctional materials. Based on the system levels, a framework for possible architectures is derived. Four system architecture generations with a total of eight different types are identified and analyzed in the dimensions “Nomenclature”, “Approach”, “Omitted Components” and “Industry Examples”. In this way, upcoming system architectures, such as cell-to-pack and cell-to-chassis, can be clearly differentiated. Finally, fundamental product characteristics for the four system generations are derived and compared.

An Intermodular Active Balancing Topology for Efficient Operation of High Voltage Battery Packs in Li-Ion Based Energy Storage Systems: Switched (Flying) DC/DC Converter

“…In general, for modularity and safety purposes, the cells are initially assembled into identical modules of several cells, and then the modules are connected to each other, forming a battery pack. Recently, direct cell-to-pack (CTP) and cell-to-chassis (CTC) constructions that reduce the overall pack size and weight have also been studied [10][11][12][13].…”