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工業技術研究院

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技術名稱: 電池特性追蹤方法及電路

技術簡介

一種電池特性追蹤方法,包括:根據電池之初始特性,提供一對應表;在該電池模組從一使用狀態轉為一靜置狀態後,判斷電池是否滿足一預設條件;當電池滿足該預設條件時,測量電池,以取得一第一電壓以及一實際容量;根據第一電壓,由對應表中取得一查表容量;根據實際容量及查表容量,更新對應表。

Abstract

A characteristic tracking method for a battery. A corresponding table is provided according to an original characteristic of the battery.  When state of the battery is changed from a busy state to a free state, the battery is determined whether to satisfy a preset condition. When the preset condition is satisfied, the battery is estimated for obtaining a first voltage and a real capacity. The first voltage is utilized to obtain an ideal capacity from the corresponding table. The corresponding table is updated according to the real capacity and the ideal capacity.

技術規格

殘電量估測誤差5~15% (與量測硬體準確度有關)

Technical Specification

none

技術特色

對於充電電壓在4.2V的鋰電池材料系統,在電壓5mV/電流1%量測誤差範圍內,殘電量誤差<5%,且本技術還具備估測電池老化的電容量之能力,並以老化電容量修正殘電量,因此電池殘電量的準確性不受到電池老化之影響。

應用範圍

3C產品、電動相關載具(電動自行車/機車/汽車等)、任何需要顯示電量之產品

接受技術者具備基礎建議(設備)

具備充放電機或電子電路設計之相關設備

接受技術者具備基礎建議(專業)

具備BMS硬體設計能力

技術分類 電池技術

聯絡資訊

聯絡人:孫建中 儲能材料及技術研究組

電話:+886-3-5912774 或 Email:scc_mcl.n300@itri.org.tw

客服專線:+886-800-45-8899

傳真:+886-35820442

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