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US 2019/0157726 A1Published application
Secondary Cell with High Recharging Efficiency and Long Term Stability
AssigneeUrban Electric Power Inc.
InventorsMelissa MENARD, David KAPLIN, Ryan CAMMARATA
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Abstract
A secondary zinc-manganese dioxide secondary cell is disclosed. The cell includes a zinc gel anode, high manganese content cathode in either prismatic or jelly roll form. An aqueous based continuous reel to reel process for formulation and fabrication of the anode and cathode is provided. The cell is contained in a box assembly.
Claims24
An electrochemical cell comprising:
- a cathode comprising manganese dioxide;
- an anode;
- and
- a separator disposed between the cathode and the anode,
- wherein the cathode comprises a paste, where the paste comprises manganese dioxide and a carbon blend, wherein the carbon blend comprises graphite and a carbon based conductive additive, and wherein a ratio of the graphite to the conductive additive is in a range of from about 7:1 to about 28:1.
2 more elements
The electrochemical cell of claim 12, wherein the paste comprises between less than or equal to about 1% by weight of the additive.
A method comprising:
- forming a gel comprising zinc, a binder, and water, wherein the binder comprises a polymer;
- coating a current collector with the gel;
- and
- drying the gel on the current collector to form a dried anode.
1 more element
Dependencies are inferred from the claim text.