Solid electrolyte capacitors and methods of making the same

Details Solid electrolyte capacitors and methods of making the same Solid electrolyte capacitors and methods of making the same

1988-04-28

1990-07-17

Griffin, Donald A.

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

29 2503, H01G 900

Patent

active

049425013

ABSTRACT:
Compact leak-proof electrolytic capacitors including, between the anode and the cathode, an ultrathin layer of a solid electrolyte, are disclosed. The solid electrolyte comprises a solid solution of (a) an alkali metal salt, a transition metal salt or an ammonium salt of (b) a monobasic, dibasic or tribasic acid other than a haloid acid (c) in a polymer of high solvation power. Preferred salts are the tetrafluoroborates and hexafluoroglutarates of sodium and potassium, and the preferred polymer is a blend of polyethylene oxide with a siloxane-alkylene oxide copolymer. Methods of making such capacitors are also disclosed. Rolled solid electrolyte capacitors of this type are characterized by low volume, absence of electrolyte leakage, and minimum dielectric deformation, and are capable of delivering intense bursts of current on demand, thereby being suitable for use in biomedical electronic devices such as cardiac pacemakers and defibrillators implanted in the human body.

REFERENCES:
patent: 3345543 (1967-10-01), Sato
patent: 3483438 (1969-12-01), Sharbaugh
patent: 3555369 (1971-01-01), Yoshino
patent: 3872358 (1975-03-01), Murakami et al.
patent: 3883784 (1975-05-01), Peck et al.
patent: 3898539 (1975-08-01), Yoshimura et al.
patent: 3955126 (1976-05-01), Murakami et al.
patent: 4009424 (1977-02-01), Itoh
patent: 4414607 (1983-11-01), Sekido et al.
patent: 4533975 (1985-08-01), Bill
patent: 4571664 (1986-02-01), Hyland
patent: 4731705 (1988-03-01), Velasco et al.
Munshi and Owens, "Flat Polymer Electrolytes Promise Thin-Film Power, IEEE Spectrum", Aug., 1989.
J. R. MacCallam and C. A. Vincent, Polymer Electrolyte Reviews--1, Elsevier Applied Science Publishers Ltd. (1987), pp. 1-22.
Matsushita News, Nov. 11, 1987.
Nihon Keizai Shinbun, "New Solid Electrolyte Sheet Developed" (11/12/87).
Solid Aluminum Capacitors, 2222 121, p. 385, June, 1985.

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