Lithium secondary battery
AssigneeNippon Telegraph and Telephone Corporation
InventorsShuhei Sakamoto, Yoko Ono, Masahiko Hayashi, Takeshi Komatsu
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Abstract
Provided is a lithium secondary battery having a higher capacity and a longer life. The lithium secondary battery includes: a positive electrode including a material capable of intercalation and deintercalation of a lithium ion; a lithium ion-conductive electrolyte including a salen-based metal complex; and a negative electrode including a material capable of occlusion and release of a lithium metal or a lithium ion. The salen-based metal complex is selected from (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminotitanium chloride (TiSl), VSl, CrSl, MnSl, FeSl, CoSl, and RuSl.
Claims8
A lithium secondary battery comprising:
- a positive electrode comprising a material capable of intercalation and deintercalation of a lithium ion;
- a lithium ion-conductive electrolyte comprising a salen-based metal complex, wherein the salen-based metal complex is selected from
- (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminotitanium chloride;
- (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminovanadium chloride;
- (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminochromium chloride;
- (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminomanganese chloride;
- (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminoiron chloride;
- (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminocobalt;
- or (R,R)-(−)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminoruthenium chloride;
- and
- a negative electrode comprising a material capable of occlusion and release of a lithium metal or a lithium ion.
Dependencies are inferred from the claim text.