Development of Lithium-Ion-Battery System for Hybrid System

Paper #:
  • 2011-01-1372

Published:
  • 2011-04-12
Citation:
Oguri, K. and Maruno, N., "Development of Lithium-Ion-Battery System for Hybrid System," SAE Technical Paper 2011-01-1372, 2011, https://doi.org/10.4271/2011-01-1372.
Pages:
7
Abstract:
A battery module structure and a battery management system that is optimal for the structure were developed, in order to facilitate the work of equipping hybrid cars with lithium-ion batteries (LIBs) that are expected to improve vehicle performance. This paper describes the structure of the LIB and the battery management system that is optimal for it. The battery module structure has cells with a sturdy holding structure and a highly efficient cooling system. The structure has enabled the improvement of battery pack system power output by 80% per unit weight and by 20% per unit volume compared to the previous model. The optimal management system prevents battery overcharge by detecting and controlling the state of charge (SOC) of each cell with a high degree of accuracy.
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