Title:
伝導性リチウム貯蔵電極
Document Type and Number:
Japanese Patent JP4712302
Kind Code:
B2
Abstract:
A compound comprising a composition A x (M' 1-a M" a ) y (XD 4 ) z , A x (M' 1-a M" a ) y (DXD 4 ) z , or A x (M' 1-a M" a ) y (X 2 D 7 ) z , and have values such that x, plus y(1-a) times a formal valence or valences of M', plus ya times a formal valence or valence of M", is equal to z times a formal valence of the XD 4 , X 2 D 7 , or DXD 4 group; or a compound comprising a composition (A 1-a M" a ) x M' y (XD 4 ) z , (A 1-a M" a ) x M' y (DXD 4 ) z (A 1-a M" a ) x M' y (X 2 D 7 ) z and have values such that (1-a)x plus the quantity ax times the formal valence or valences of M" plus y times the formal valence or valences of M' is equal to z times the formal valence of the XD 4 , X 2 D 7 or DXD 4 group. In the compound, A is at least one of an alkali metal and hydrogen, M' is a first-row transition metal, X is at least one of phosphorus, sulfur, arsenic, molybdenum, and tungsten, M" any of a Group IIA, IIIA, IVA, VA, VIA, VIIA, VIIIA, IB, IIB, IIIB, IVB, VB, and VIB metal, D is at least one of oxygen, nitrogen, carbon, or a halogen, 0.0001 < a ‰¤ 0.1, and x, y, and z arc greater than zero. The compound can have a conductivity at 27° C of at least about 10 -8 S/cm. The compound can be a doped lithium phosphate that can intercalate lithium or hydrogen. The compound can be used in an electrochemical device including electrodes and storage batteries and can have a gravimetric capacity of at least about 80 mAh/g while being charged/discharged at greater than about C rate of the compound.
Inventors:
Chan, Yet-Min
Chun, San-Young
Blocking, jason tee
Anderson, Anna M
Chun, San-Young
Blocking, jason tee
Anderson, Anna M
Application Number:
JP2003557056A
Publication Date:
June 29, 2011
Filing Date:
December 23, 2002
Export Citation:
Assignee:
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
International Classes:
B01D71/02; C01B25/45; B01J20/02; C01B3/00; H01M4/58; H01M4/86; H01M6/16; H01M4/70; H01M4/74
Domestic Patent References:
| JP11219722A | ||||
| JP2000509193A |
Foreign References:
| WO2001054212A1 | ||||
| WO2001053198A1 |
Other References:
Journal of the electrochemical society,米国,electrochem.SOC,2001年 8月,vol.148、No.8,A960-A967
Journal of power sources,イタリア,elsevier,2001年 7月,vol.97-98,p.503-507
Journal of the electrochemical society,米国,The electrochemical society ,1997年 4月,Vol.144、No.4,1188-1194
Journal of the electrochemcal society,米国,2001年 3月,Vol.148、No.3,A224-A229
Journal of power sources,イタリア,elsevier,2001年 7月,vol.97-98,p.503-507
Journal of the electrochemical society,米国,The electrochemical society ,1997年 4月,Vol.144、No.4,1188-1194
Journal of the electrochemcal society,米国,2001年 3月,Vol.148、No.3,A224-A229
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Takashi Nakata
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Takashi Nakata