Patent ID: 7473492
Filing Date: 2009-01-06
Classification: C08G,H01M,Y02E,Y02P

Abstract:
1. A lithium secondary battery having a positive electrode and a negative electrode which reversibly intercalate and deintercalate lithium, the negative electrode containing amorphous carbon, and an electrolyte containing an ion conductive material and an electrolytic salt, where the ion conductive material comprises a polymerizable composition which contains a boron-containing compound represented by the following formula (2) and a boron-containing compound represented by the following formula (3): wherein B represents a boron atom; Z 4 , Z 5 and Z 6 each represent an organic group having an acryloyl group or a methacryloyl group or a hydrocarbon group of 1-10 carbon atoms, with the proviso that at least one of Z 4 , Z 5 and Z 6 is said organic group having an acryloyl group or a methacryloyl group; R 1 , R 2 and R 3 each represent a hydrocarbon group of 1-10 carbon atoms; AO represents an oxyalkylene group of 1-6 carbon atoms; and each of p, q, r, α, β and γ is more than 0 and less than 4, provided that each of the sum p+q+r and the sum α+β+γ is 1 or more.