Lithium secondary cell with an alloyed metallic powder containing electrode
First Claim
1. A lithium secondary cell comprising a positive electrode and a negative electrode separated from each other by a separator in an electrolyte contained in a case therefor, wherein the negative electrode comprises at least a metallic powder of at least one metal selected from the group consisting of nickel, cobalt, copper, titanium, and iron alloyed with at least one amphoteric metal selected from the group consisting of aluminum, zinc, tin, lead, gallium, cerium and strontium which reacts with an acid and an alkali and wherein lithium ions undergo oxidation and reduction by charging and discharging reactions.
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Abstract
In Lithium secondary cells, alkali secondary cells and bromine-zinc secondary batteries capable of retarding the growth of a dendrite, which would occur at the time of charging thereof and result in performance degradation, and having high energy densities and long cycle lives, a method for forming a material of a negative electrode of such a secondary cell or battery and a method for handling the material of the negative electrode are provided. The secondary cell or battery is provided with positive and negative electrodes separated from each other by a separator in an electrolyte contained in a case. The negative electrode is made of metallic powder alloyed with at least an amphoteric metal which reacts with both of an acid and an alkali.
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Citations
15 Claims
- 1. A lithium secondary cell comprising a positive electrode and a negative electrode separated from each other by a separator in an electrolyte contained in a case therefor, wherein the negative electrode comprises at least a metallic powder of at least one metal selected from the group consisting of nickel, cobalt, copper, titanium, and iron alloyed with at least one amphoteric metal selected from the group consisting of aluminum, zinc, tin, lead, gallium, cerium and strontium which reacts with an acid and an alkali and wherein lithium ions undergo oxidation and reduction by charging and discharging reactions.
Specification