鉛酸及鋰離子電池的特性分析

Abstract

備用電力的需求在科技日益發達的今日更顯的重要，不論是低功率的手機或高功率通訊系統設備，皆須使用備用電源以維持系統的正常運作。而此備用電源大多是可重覆使用的二次電池，但如何選擇適當的備用電源則須依據系統對備用能量的需求、備用系統的使用環境條件及系統的特性而有所不同。因此在本篇文中，探討鉛酸電池及鋰離子電池之工作原理、基本特性及動態反應特性，並建立一電池模型以模擬電池在靜態環境及動態環境下之特性。系統設計者利用此模型即可依據系統的工作模式，進而挑選出符合需求特性之備用電源。

The requirement for backup power play an important role for today’s high technology system. No matter in low power requirement system like cell phone or high power communication system, all of them need backup power to maintain system’s normal operation. Re-chargeable 2nd battery are chosen as backup power system, but how to choose proper backup battery depends on system power requirement、system working environment and system characteristic. In this thesis, Lead-acid battery and Li-ion battery’s normal characteristic and dynamic characteristic are provided to build up a battery model to simulate battery’s static characteristic and dynamic’s characteristic. Based on this model, user can choose proper backup power depends on system’s working mode.