LITHIUM ION SECONDARY BATTERY

PROBLEM TO BE SOLVED: To increase the battery output of a lithium ion secondary battery.SOLUTION: An electrode group including a positive electrode having a positive electrode mixture layer containing a lithium transition metal complex oxide, a negative electrode having a negative electrode mixture...

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Main Authors EGUCHI TAKASHI, SUZUKI KATSUNORI, YAGI YOSHIN
Format Patent
LanguageEnglish
Published 19.07.2012
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Abstract PROBLEM TO BE SOLVED: To increase the battery output of a lithium ion secondary battery.SOLUTION: An electrode group including a positive electrode having a positive electrode mixture layer containing a lithium transition metal complex oxide, a negative electrode having a negative electrode mixture layer occluding/releasing lithium ions, and a separator arranged on the inner and outer peripheries of the positive electrode and negative electrode is housed in a battery container, and a nonaqueous electrolyte containing a lithium salt is injected. Output density of the lithium ion secondary battery can be enhanced by confining the value calculated by b×c/a within a predetermined range, where a is the area of the positive electrode mixture layer, b is the area of the separator, and c is the porosity of the separator.
AbstractList PROBLEM TO BE SOLVED: To increase the battery output of a lithium ion secondary battery.SOLUTION: An electrode group including a positive electrode having a positive electrode mixture layer containing a lithium transition metal complex oxide, a negative electrode having a negative electrode mixture layer occluding/releasing lithium ions, and a separator arranged on the inner and outer peripheries of the positive electrode and negative electrode is housed in a battery container, and a nonaqueous electrolyte containing a lithium salt is injected. Output density of the lithium ion secondary battery can be enhanced by confining the value calculated by b×c/a within a predetermined range, where a is the area of the positive electrode mixture layer, b is the area of the separator, and c is the porosity of the separator.
Author YAGI YOSHIN
SUZUKI KATSUNORI
EGUCHI TAKASHI
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Snippet PROBLEM TO BE SOLVED: To increase the battery output of a lithium ion secondary battery.SOLUTION: An electrode group including a positive electrode having a...
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SubjectTerms BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
Title LITHIUM ION SECONDARY BATTERY
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