US4686160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyacetylene composite process for production thereof, and method for use thereof
Assignee: Asahi Kasei Corp
•
Filing: 1986-08-15
•
Granted: 1987-08-11
•
Expires: 2006-08-15
Abstract
Abstract Polyacetylene composite comprising a polyacetylene polymer coated with at least one ionic organic compound such as alkali metal alkoxide type compounds of 1,2-diol, semicarbonic ester derivatives of 1,2-diol, and ortho-ester derivatives; a process for the production of the above composite characterized by applying a solution of the above ionic organic compounds to the polyacetylene polymer; a process for the production of the above composite characterized by placing the polyacetylene polymer as an electrode in an electrolyte containing a cyclic carbonic ester compound and an alkali metal ion and electrochemically reducing the cyclic carbonic ester compound; and a process of using an n-doped polyacetylene composite as a negative electrode active substance for a secondary battery. The ionic organic compound provides high stability to the n-doped polyacetylene and therefore the secondary battery using it as a negative electrode active substance has outstanding protracted charge-discharge cycle properties, self-discharge properties, and voltage-maintaining properties.
Inventors
- 👤 Akira Yoshino
- 👤 Kenichi Sanechika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:43
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S205/00; Y10S205/924; Y10S205/927; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
A method for the use of a polyacetylene composite, characterized by using as a negative electrode active substance for a secondary battery an n-doped polyacetylene composite coated with at least one ionic organic compound represented by the general formula (I): ##STR30## wherein M denotes at least one member selected from the group of alkali metals; X and Y are the same or different and represent --O or ##STR31## R 1 , R 2 , R 3 , and R 4 each are at least one member selected from the group consisting of hydrogen, substituted or unsubstituted alkyl groups of 1 to 5 carbon atoms, and substituted or unsubstituted alkoxy groups of 1 to 5 carbon atoms, or R 1 and R 2 or R 3 and R 4 in combination form a cyclic structure.
Claim 2
Independent Claim
134 words
A method for the use of a polyacetylene composite, characterized by using as a negative electrode active substance for a secondary battery an n-doped polyacetylene composite coated with at least one ionic organic compound represented by the general formula (I): ##STR30## wherein M denotes at least one member selected from the group of alkali metals; X and Y are the same or different and represent --O or ##STR31## R 1 , R 2 , R 3 , and R 4 each are at least one member selected from the group consisting of hydrogen, substituted or unsubstituted alkyl groups of 1 to 5 carbon atoms, and substituted or unsubstituted alkoxy groups of 1 to 5 carbon atoms, or R 1 and R 2 or R 3 and R 4 in combination form a cyclic structure.
Claim 3
Dependent Claim
110 words
A method according to claim 1, wherein the ionic organic compound represented by the general formula (I) is an ortho-ester derivative represented by the general formula (II): ##STR32## wherein M denotes at least one member selected from the group of alkali metals, Z 1 and Z 2 are the same or different and each denotes a straight-chain alkylene group of 2 to 5 carbon atoms, a straight-chain alkylene group of 2 to 5 carbon atoms substituted by at least one substituent selected from the group consisting of halogen atoms, alkyl groups, and aryl groups, or a group of the formula ##STR33## where n denotes an integer of 2 to 5.
Claim 4
Dependent Claim
23 words
A method according to claim 1, wherein the ionic organic compound represented by the general formula (I) is an alkoxide derivative of 1,2-glycol.
Claim 5
Dependent Claim
24 words
A method according to claim 1, wherein the ionic organic compound represented by the general formula (I) is a semicarbonic ester derivative of 1,2-glycol.
Claim 6
Dependent Claim
23 words
A method according to claim 1, wherein M is at least one member selected from the group consisting of lithium, sodium, and potassium.
Claim 7
Dependent Claim
10 words
A method according to claim 1, wherein M is lithium.
Claim 8
Dependent Claim
58 words
A method according to claim 1, wherein Z 1 and Z 2 each are at least one member selected from the group consisting of --CH 2 --CH 2 --, ##STR34## --CH 2 --CH 2 --CH 2 --, --CH 2 --CH 2 --CH 2 --CH 2 --, and --CH 2 --CH 2 --CH 2 --CH 2 --CH 2 --.
Claim 9
Dependent Claim
19 words
A method according to claim 1, wherein Z 1 and Z 2 each are --CH 2 --CH 2 --.
Claim 10
Dependent Claim
15 words
A method according to claim 1, wherein Z 1 and Z 2 each are ##STR35##
Claim 11
Dependent Claim
19 words
A method according to claim 1, wherein a positive electrode active substance is Li 1-x CoO 2 (where 0≦X≦1).
References Cited (Backward Citations)
US4204216A
Cited
US4222903A
Cited
US4321114A
Cited
US4442187A
Cited
US4419277A
Cited
US4502981A
Cited
US4472489A
Cited
US4472487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |