The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 1989
Filed:
Jan. 19, 1988
Kenichiro Jinnai, Higashimine, JP;
Takafumi Hashimoto, Asahi, JP;
Kabushiki Kaisha Meidensha, Tokyo, JP;
Abstract
In recharging a zinc-halogen secondary battery or battery, zinc dendrite is readily formed on the negative electrode and therefore it has been difficult to form a uniformly thick zinc layer on the negative electrode. This inevitably causes a short cyclic battery lifetime. To overcome this problem, electric pulse treatment is effected at the electrode before dc battery recharging process. In zinc oxide resolving treatment, an electrically positive pulse is applied to the negative electrode. In zinc fine crystal depositing treatment, an electrically negative pulse is applied to the negative electrode. Where the above pulse treatments are effected in combination in the electrolyte including a zinc dendrite inhibitor, a synergistic effect can be obtained.