公开(公告)号：US3775183A

公开(公告)日：1973-11-27

申请号：US3775183D

申请日：1972-06-15

Applicant: ESB INC

Inventor： PAULSON J

IPC: H01M10/36 ,  H01M43/06

CPC classification number: H01M10/36

Abstract: An electric battery having an azodicarbonamide compound as the depolarizer in which the electrolyte consists essentially of an aqueous solution of zinc chloride, ammonium chloride and an ethoxylated rosin amine. It is preferred that the aqueous electrolyte solution have a pH ranging from about 2.5 to about 5. The aqueous electrolyte solution may contain from about 5 to about 50% by weight of zinc chloride, up to about 25% by weight of ammonium chloride and from about 0.1 to about 5% by weight of an ethoxylated rosin amine with the balance of the solution being water. The ethoxylated rosin amine has the following general formual

WHEREIN R is a radical selected from abietyl, dihydroabietyl, tetrahydroabietyl or dehydroabietyl corresponding with the organic radical of the rosin amine from which it was produced. X and y may range from 0 to 20 with the sum of x and y being at least 1 but not exceeding about 20. The improved electrolyte of this invention reduces the gassing rate of the zinc anode in said electrolyte, it improves the redeposition of the zinc active material during the recharging of the battery, and it provides a battery having a substantially improved cycle life.

Abstract translation: 具有偶氮二酰胺化合物作为去极化器的电池，其中电解质基本上由氯化锌，氯化铵和乙氧基化松香胺的水溶液组成。 电解质水溶液的pH优选为约2.5至约5.电解质水溶液可含有约5至约50重量％的氯化锌，至多约25重量％的氯化铵和 约0.1至约5重量％的乙氧基化松香胺，其余溶液为水。 乙氧基化松香胺具有以下通式，其中R为选自与其生产的松香胺的有机基相当的芳基，二氢枞基，四氢枞基或脱氢枞基的基团。 X和y可以在0至20之间，x和y之和至少为1但不超过约20.本发明改进的电解质降低了所述电解质中锌阳极的放气速率，从而改善了 在电池充电期间锌活性材料，并且其提供具有显着改善的循环寿命的电池。

公开(公告)号：BR7704244A

公开(公告)日：1978-05-02

申请号：BR7704244

申请日：1977-06-29

Applicant: ESB INC

Inventor： PAULSON J ,  BREDLAND A ,  MESSING T ,  FONG W

IPC: H01M6/06 ,  H01M50/528 ,  H01M50/571 ,  H01M6/12

Abstract: A battery has a metallic component the inner surface of which is in contact with the battery electrolyte and the outer surface of which is not in contact with the electrolyte. To prevent undesired corrosion a mask is placed over a portion of the inner surface in order to electrochemically inactivate the portion of the inner surface covered by it. Although the metallic component having the mask may be the positive electrode or a terminal, preferably it is the negative electrode and preferably the negative electrode is a metallic foil such as zinc, lead, magnesium, or aluminum or alloys thereof. The outer surface of the metallic component opposite the mask may be exposed to the air. An electrical lead may be connected to the outer surface of the metallic component opposite the mask. Where the mask is applied to the inner surface of an electrode, the mask may contain metal or a metalic compound of a chemical composition compatible with the electrode in order to compensate for the loss in electrochemical activity at the surface of the electrode covered by the mask.