申请人:——
公开号:US20030087162A1
公开(公告)日:2003-05-08
The present invention relates to a lithium ion battery, more particularly to a new electrolyte and a lithium ion battery which comprises the same using an anode including graphitized carbon and a cathode including lithium-containing transition metal oxide. The present invention provides a compound of 4-carbomethoxymethyl-1,3-dioxan-2-one or 4-carboethoxymethyl-1,3-dioxolan-2-one represented by formula (1) which comprises both a cyclic ring carbonate structure and a linear carbonate structure, a lithium-containing electrolyte which includes the compound of formula (1), and a lithium ion battery which includes the electrolyte using the anode including graphitized carbon and the cathode including lithium-containing transition metal oxide. The lithium ion battery of the present invention fabricated by using the new compound has high electric capacity because of the graphitized carbon, and superior charge-discharge cyclic life characteristic and low temperature performance.
本发明涉及一种锂离子电池,更具体地涉及一种新电解质和包括该电解质的锂离子电池,其中包括包括石墨化碳的阳极和包括含锂过渡金属氧化物的阴极。本发明提供了由式(1)表示的4-羧甲氧甲基-1,3-二氧杂环戊烷-2-酮或4-羧乙氧甲基-1,3-二氧杂环戊烷-2-酮的化合物,该化合物既包括环状碳酸酯结构又包括线性碳酸酯结构,包括式(1)的化合物的含锂电解质,以及使用包括石墨化碳的阳极和包括含锂过渡金属氧化物的阴极的电解质的锂离子电池。通过使用新化合物制备的本发明的锂离子电池具有高电容量,因为含有石墨化碳,并具有优越的充放电循环寿命特性和低温性能。