Simple method for improving first efficiency of total battery

Simple method for improving first efficiency of total battery

The invention discloses a simple method for improving the first efficiency of a total battery in the field of chemical energy storage batteries. The simple method comprises the following steps: (1) testing the first efficiency of a half battery of a positive electrode material in a voltage range (U2...

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Hauptverfasser: ZHANG LIANG, LIU JIANGTAO, YUAN ZAIFANG, SHI BIN, CHEN XIAOTAO, ZHOU XIONG, LIU FULIANG, XIANG BIN, TANG YUEJIAO, ZOU RUI, ZHANG HONGMEI
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Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator ZHANG LIANG
LIU JIANGTAO
YUAN ZAIFANG
SHI BIN
CHEN XIAOTAO
ZHOU XIONG
LIU FULIANG
XIANG BIN
TANG YUEJIAO
ZOU RUI
ZHANG HONGMEI
description The invention discloses a simple method for improving the first efficiency of a total battery in the field of chemical energy storage batteries. The simple method comprises the following steps: (1) testing the first efficiency of a half battery of a positive electrode material in a voltage range (U2gt; the charge-discharge capacity is Q1 and Q2 respectively, and the charge-discharge efficiency is Q2/Q1; (2) testing the voltage range (U4gt) from U3 to U4 of the positive electrode material half cell; the charge and discharge capacities are Q3 and Q4 respectively, and the charge and discharge efficiency is Q3/Q4; and (3) the total battery (U4-U2) to (U3-U1), N/P = Q4 * negative electrode surface density * active substance content/Q1 * positive electrode surface density * active substance content, the charging voltage of the total battery is less than or equal to (U4-U2), and the discharging voltage is more than or equal to (U3-U1). The method in the scheme can quickly and accurately improve the first efficiency
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Simple method for improving first efficiency of total battery
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