Battery mask from radiation curable and thermoplastic materials
AssigneeValence Technology, Inc.
InventorsRussell D. Moulton, Ib I. Olsen
Life of this patent
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Abstract
A secondary, solid electrolytic battery includes a number of electrically connected electrolytic cells wherein for each cell the anode and cathode are separated from each other by a mask that is a layer of electrically insulative material that is coated along the perimeter of the anode and/or cathode. The mask reduces the rate of dendrite formation and prevents edge-effects, short circuits, and related problems caused by inadvertent contact of the anode and cathode.
Claims31
A solid secondary electrolytic cell which comprises:
- an anode;
- a cathode;
- a solid electrolyte functionally disposed between said anode and said cathode;
- and
- a mask comprising an electrically insulative layer that is coated on a surface along the perimeter of said anode, cathode, or solid electrolyte, wherein the mask is fabricated by a process comprising:
- (i) depositing a liquid radiation curable material onto said surface;
- and
- (ii) curing said radiation curable material wherein the mask is interposed between the solid electrolyte and the anode or the cathode.
A solid secondary electrolytic cell which comprises:
- an anode;
- a cathode;
- a solid electrolyte functionally disposed between said anode and said cathode;
- and two masks each comprising an electrically insulative layer that is coated on a surface along the perimeter of said anode, cathode, or solid electrolyte, wherein each mask is fabricated by a process comprising:
- (i) depositing a liquid radiation curable material onto said surface;
- and
- (ii) curing said radiation curable material wherein one mask is interposed between the anode and solid electrolyte and the second mask is interposed between the cathode and solid electrolyte.
A solid secondary electrolytic cell which comprises:
- an anode;
- a cathode;
- a solid electrolyte functionally disposed between said anode and said cathode;
- and
- a mask comprising an electrically insulative layer that is positioned on a surface along the perimeter of said anode, cathode, or solid electrolyte, wherein the mask comprises a radiation cured material and wherein the mask is interposed between the solid electrolyte and anode or the cathode.
Dependencies are inferred from the claim text.