US4702977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary battery using non-aqueous solvent
Assignee: Mitsubishi Chemical Corp
•
Filing: 1986-04-24
•
Granted: 1987-10-27
•
Expires: 2006-04-24
Abstract
Abstract There is disclosed a secondary battery using a non-aqueous solvent which comprises using a carbonaceous material obtained by carbonating an organic compound and having a pseudographite structure of a hydrogen/carbon ratio being 0.15 or less, a d002 being 3.37 ANGSTROM or more and a Lc being 150 ANGSTROM or less as a negative electrode. The battery has a large electric density, less in self-discharging and excellent in preservability.
Inventors
- 👤 Kazuya Hiratsuka
- 👤 Yuichi Sato
- 👤 Yoshiyasu Aoki
- 👤 Hiroshi Yui
- 👤 Mitsutaka Miyabayashi
- 👤 Akira Itsubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:12
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/583; H01M10/00; H01M10/05; H01M10/052; H01M10/0525; H01M4/587; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
129 words
A secondary battery using a non-aqueous solvent which comprises in a non-aqueous solvent secondary battery comprising a positive electrode capable of recharging, an electrolytic solution dissolving an electrolyte in a non-aqueous solvent and a negative electrode capable of recharging, the improvement wherein said negative electrode comprises a carbonaceous material obtained by the carbonization of at least one of a compound selected from the group consisting of an organic high molecular compound, a condensed polycyclic hydrocarbon compound and polycyclic heterocyclic compound, and having a pseudographite structure of an atomic ratio of hydrogen/carbon being not more than 0.15, a spacing of (002) planes as determined by X-ray wide-angle diffraction being 3.37 Å to 3.75 Å and a crystallite size in the direction of c axis being 8 Å to 150 Å.
Claim 2
Dependent Claim
129 words
A secondary battery using a non-aqueous solvent which comprises in a non-aqueous solvent secondary battery comprising a positive electrode capable of recharging, an electrolytic solution dissolving an electrolyte in a non-aqueous solvent and a negative electrode capable of recharging, the improvement wherein said negative electrode comprises a carbonaceous material obtained by the carbonization of at least one of a compound selected from the group consisting of an organic high molecular compound, a condensed polycyclic hydrocarbon compound and polycyclic heterocyclic compound, and having a pseudographite structure of an atomic ratio of hydrogen/carbon being not more than 0.15, a spacing of (002) planes as determined by X-ray wide-angle diffraction being 3.37 Å to 3.75 Å and a crystallite size in the direction of c axis being 8 Å to 150 Å.
Claim 3
Dependent Claim
32 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein the battery has the structure of laminating said positive electrode and said negative electrode through a separator impregnated an electrolyte.
Claim 4
Dependent Claim
61 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein said electrolyte is a combination of an alkali metal cation and at least one an anion selected from the group consisting of ClO 4 - , PF 6 - , BF 4 - , CF 3 SO 3 - and AsF 6 - ; or a quaternary ammonium salt.
Claim 5
Dependent Claim
67 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein said negative electrode comprises a carbonaceous material having the atomic ratio of hydrogen/carbon being not more than 0.10, the spacing of (002) planes, d 002 , as determined by X-ray wide-angle diffraction being 3.39 Å to 3.75 Å and the crystallite size in the direction of c axis, Lc, being 8 Å to 100 Å.
Claim 6
Dependent Claim
48 words
A secondary battery using a non-aqueous solvent according to claim 4, wherein said negative electrode comprises a carbonaceous material having the atomic ratio of hydrogen/carbon being not more than 0.07, the d 002 being 3.41 Å to 3.70 Å and the Lc being 10 Å to 70 Å.
Claim 7
Dependent Claim
106 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein said negative electrode comprises a carbonaceous material having the atomic ratio of hydrogen/carbon being not more than 0.10, the spacing of (002) planes, d 002 , as determined by X-ray wide-angle diffraction being 3.39 Å to 3.75 Å, the crystallite size in the direction of c axis, Lc, being 8 Å to 100 Å, a crystallite size in the direction of a axis, La, being 10 Å or more and a distance a 0 twice the spacing d 110 of the (110) planes measured by X-ray wide-angle diffraction being 2.38 Å to 2.47 Å.
Claim 8
Dependent Claim
65 words
A secondary battery using a non-aqueous solvent according to claim 6, wherein said negative electrode comprises a carbonaceous material having the atomic ratio of hydrogen/carbon being not more than 0.07, the d 002 being 3.41 Å to 3.70 Å, the Lc being 10 Å to 70 Å, the La being 15 Å to 150 Å and the a 0 being 2.39 Å to 2.46 Å.
Claim 9
Dependent Claim
22 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein said positive electrode is constituted by a metallic chalcogen compound.
Claim 10
Dependent Claim
107 words
A secondary battery using a non-aqueous solvent according to claim 8, wherein said metallic chalcogen compound is selected from the group consisting of Cr 3 O 8 , V 2 O 5 , V 6 O 13 , LiCoO 2 , MoO 3 , WO 3 , TiS 2 , V 2 S 5 , MoS 2 , MoS 3 , CuS, Fe 0 .25 V 0 .75 S 2 , Cr 0 .25 V 0 .75 S 2 , Cr 0 .5 V 0 .5 S 2 , Na 0 .1 CrS 2 , NiPS 3 , FePS 3 , VSe 2 and NbSe 3 .
Claim 11
Dependent Claim
30 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein a discharging capacity of said positive electrode is set 1.1-fold or more to that of said negative electrode.
Claim 12
Dependent Claim
63 words
A second battery using a non-aqueous solvent according to claim 1, wherein said positive electrode is constituted by a carbonaceous material obtained by carbonizing at least one compound selected from the group consisting of an organic high molecular compound, a condensed polycyclic hydrocarbon compound and polycyclic heterocyclic compound and having an atomic ratio of hydrogen/carbon being 0.10 or more to 0.70 or less.
Claim 13
Dependent Claim
63 words
A secondary battery using a non-aqueous solvent according to claim 11, wherein said positive electrode comprises a carbonaceous material having the atomic ratio of hydrogen/carbon being 0.10 to 0.60, a spacing of (002) planes, d 002 , as determined X-ray wide-angle diffraction being 3.42 Å or more and a crystallite size in the direction of c axis, Lc, being 70 Å or less.
Claim 14
Dependent Claim
45 words
A secondary battery using a non-aqueous solvent according to claim 12, wherein said positive electrode comprises a carbonaceous material having the atomic ratio of hydrogen/carbon being 0.10 to 0.50, the d 002 being 3.44 Å or more and the Lc being 50 Å or less.
Claim 15
Dependent Claim
45 words
A secondary battery using a non-aqueous solvent according to claim 13, wherein said positive electrode comprises a carbonaceous material having the atomic ratio of hydrogen/carbon being 0.10 to 0.50, the d 002 being 3.46 Å or more and the Lc being 30 Å or less.
Claim 16
Dependent Claim
22 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein said carbonaceous material is previously doped an alkali metal cation.
Claim 17
Dependent Claim
22 words
A secondary battery using a non-aqueous solvent according to claim 8, wherein said chalcogen compound is previously doped an alkali metal cation.
Claim 18
Dependent Claim
22 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein said carbonization is carried out at 1400° C. or higher.
Claim 19
Dependent Claim
22 words
A secondary battery using a non-aqueous solvent according to claim 1, wherein said carbonization is carried out at 1600° C. or higher.
Claim 20
Dependent Claim
38 words
A secondary battery using a non-aqueous solvent according to claim 1 wherein the x-ray wide-angle diffraction is 3.41 Å to 3.70 Å and the crystallite size in the direction of c axis is 10 Å to 70 Å.
Claim 21
Dependent Claim
38 words
A secondary battery using a non-aqueous solvent according to claim 3 wherein the x-ray wide-angle diffraction is 3.41 Å to 3.70 Å and the crystallite size in the direction of c axis is 10 Å to 70 Å.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |