Miniature electrochemical cell having a casing comprising opposed ceramic substrates housing an electrode assembly activated with a solid electrolyte

An electrochemical cell, comprising:

• a) a casing, comprising:
• i) a first ceramic substrate comprising opposed first substrate inner and outer surfaces, wherein a first substrate annular wall extends outwardly from the first substrate inner surface;
• and
• ii) a second ceramic substrate comprising opposed second substrate inner and outer surfaces, wherein a second substrate annular wall extends outwardly from the second substrate inner surface;
• and
• b) an electrode assembly housed inside the casing, the electrode assembly comprising:
• i) an anode active material contacting an anode current collector;
• ii) a cathode active material contacting a cathode current collector;
• and
• iii) a solid electrolyte disposed between the anode and cathode active materials;
• and
• c) a first conductive pathway extending through the first ceramic substrate and comprising first conductive pathway inner and outer surfaces located at or adjacent to the respective first ceramic substrate inner and outer surfaces;
• and
• d) a second conductive pathway extending through the first ceramic substrate and comprising second conductive pathway inner and outer surfaces located at or adjacent to the respective first ceramic substrate inner and outer surfaces,
• e) wherein the first conductive pathway inner surface is in an electrically conductive relationship with one of the anode and cathode current collectors, and wherein the second conductive pathway inner surface is in an electrically conductive relationship with the other of the anode and cathode current collectors, and
• f) wherein the respective first and second conductive pathway outer surfaces are configured for electrical connection to a load.

An electrochemical cell, comprising:

• a) a casing, comprising:
• i) a first ceramic substrate comprising opposed first substrate inner and outer surfaces, wherein a first substrate annular wall extends outwardly from the first substrate inner surface;
• ii) a second ceramic substrate comprising opposed second substrate inner and outer surfaces;
• and
• b) an electrode assembly housed inside the casing, the electrode assembly comprising:
• i) a lithium anode contacting an anode current collector;
• ii) a LiCoO2 cathode contacting a cathode current collector, wherein the anode and cathode current collectors are individually selected from copper and titanium and have a thickness ranging from about 0.1 microns to about 50 micros;
• and
• iii) a solid separator disposed between the anode and cathode active materials;
• and
• c) a first conductive pathway extending through the first ceramic substrate and comprising first conductive pathway inner and outer surfaces located at or adjacent to the respective first substrate inner and outer surfaces;
• and
• d) a second conductive pathway extending through the first ceramic substrate and comprising second conductive pathway inner and outer surfaces located at or adjacent to the respective first substrate inner and outer surfaces,
• e) wherein the first conductive pathway inner surface is in an electrically conductive relationship with one of the anode and cathode current collectors, and wherein the second conductive pathway inner surface is in an electrically conductive relationship with the other of the anode and cathode current collectors, and
• f) wherein the respective first and second conductive pathway outer surfaces are configured for electrical connection to a load.