Electrochemical cell having a plurality of battery stacks
First Claim
1. An electrochemical cell comprisinga housing;
- an electrochemical system within the housing including an electrolytic solution and first and second battery stacks exposed to the electrolytic solution;
said first battery stack includinga spool having first and second conductive contact members with a post therebetween supporting the contact members in fixed relationship and electrically insulated from each other,a first electrode structure,a second electrode structure,said first and second electrode structures being wound around said post and being electrically insulated from each other,said first electrode structure being in physical and electrical contact with said first conductive contact member and being electrically insulated from said second conductive contact member, andsaid second electrode structure being in physical and electrical contact with said second conductive contact member and being electrically insulated from said first conductive contact member;
said second battery stack includinga spool having first and second conductive contact members with a post therebetween supporting the contact members in fixed relationship and electrically insulated from each other,a first electrode structure,a second electrode structure,said first and second electrode structures being wound about said post and being electrically insulated from each other,said first electrode structure being in physical and electrical contact with said first conductive contact member and being electrically insulated from said second conductive contact member, andsaid second electrode structure being in physical and electrical contact with said second conductive contact member and being electrically insulated from said first conductive contact member.
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0 Petitions
Accused Products
Abstract
Electrochemical cell having at least two battery stacks each including an electrode assembly wound on a spool. Each electrode assembly includes two elongated electrode structures, an anode electrode structure and a cathode current collector structure. The electrode structures are wound around the center post of the spool with the anode electrode structure making contact with one of the conductive flanges of the spool and the cathode current collector structure making electrical contact with the other conductive flange of the spool. The flanges in contact with the anode structures of the battery stacks are connected to one external terminal of the cell, and the flanges in contact with the cathode current collector structures of the battery stacks are connected to another external terminal of the cell.
36 Citations
12 Claims
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1. An electrochemical cell comprising
a housing; -
an electrochemical system within the housing including an electrolytic solution and first and second battery stacks exposed to the electrolytic solution; said first battery stack including a spool having first and second conductive contact members with a post therebetween supporting the contact members in fixed relationship and electrically insulated from each other, a first electrode structure, a second electrode structure, said first and second electrode structures being wound around said post and being electrically insulated from each other, said first electrode structure being in physical and electrical contact with said first conductive contact member and being electrically insulated from said second conductive contact member, and said second electrode structure being in physical and electrical contact with said second conductive contact member and being electrically insulated from said first conductive contact member; said second battery stack including a spool having first and second conductive contact members with a post therebetween supporting the contact members in fixed relationship and electrically insulated from each other, a first electrode structure, a second electrode structure, said first and second electrode structures being wound about said post and being electrically insulated from each other, said first electrode structure being in physical and electrical contact with said first conductive contact member and being electrically insulated from said second conductive contact member, and said second electrode structure being in physical and electrical contact with said second conductive contact member and being electrically insulated from said first conductive contact member. - View Dependent Claims (2)
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3. An electrochemical cell comprising
a housing including an elongated hollow cylindrical metal case and a cover therefor; -
an electrochemical system within the housing including an electrolytic solution and first and second battery stacks exposed to the electrolytic solution; said first battery stack including a spool having first and second conductive contact members with a post therebetween supporting the contact members in fixed parallel relationship and electrically insulated from each other; an electrode assembly of an elongated first electrode structure, an elongated second electrode structure, and porous insulating material separating said first and second electrode structures; said first electrode structure including an elongated conductive substrate having resilient, deflective contact elements along the length thereof at one edge; said second electrode structure including an elongated conductive substrate having resilient, deflective contact elements along the length thereof at one edge; said electrode assembly being wound around said post with said first and second electrode structures forming alternate layers separated by porous insulating material; said resilient, deflective contact elements of said first electrode structure bearing against said first conductive contact member to provide physical and electrical contact therewith and said resilient, deflective contact elements of said second electrode structure bearing against said second conductive contact member to provide physical and electrical contact therewith; said second battery stack including a spool having first and second conductive contact members with a post therebetween supporting the contact members in fixed parallel relationship and electrically insulated from each other; an electrode assembly of an elongated first electrode structure, an elongated second electrode structure, and porous insulating material separating said first and second electrode structures; said first electrode structure including an elongated conductive substrate having resilient, deflective contact elements along the length thereof at one edge; said second electrode structure including an elongated conductive substrate having resilient, deflective contact elements along the length thereof at one edge; said electrode assembly being wound around said post with said first and second electrode structures forming alternate layers separated by porous insulating material; said resilient, deflective contact elements of said first electrode structure bearing against said first conductive contact member to provide physical and electrical contact therewith and said resilient, deflective contact elements of said second electrode structure bearing against said second conductive contact member to provide physical and electrical contact therewith. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification