Abstract: An electrochemical device is described, including a first electrochemical cell, a second electrochemical cell, connected in series to the first electrochemical cell, and a biodegradable conductive adhesive may include a conductive additive and a copolymer including at least two polycaprolactone chains attached to a polymeric center block, where the polymeric center block may include polyvinyl alcohol, disposed between the first electrochemical cell and the second electrochemical cell. A biodegradable conductive adhesive includes a hydrogel which may include a copolymer having at least two polycaprolactone chains attached to a polymeric center block, where the polymeric center block may include polyvinyl alcohol. Implementations of the biodegradable conductive adhesive may include a conductive additive or a salt. The biodegradable adhesive can include a dried hydrogel, where the hydrogel is biodegradable.

Abstract: An electrochemical device is disclosed, which includes an anode and a cathode. The electrochemical device also includes an extruded electrolyte composition disposed between the anode and the cathode. The cathode and/or the anode of the electrochemical device may be disposed in a stacked geometry or in a lateral x-y plane geometry. The electrolyte composition may include a gel polymer electrolyte. The electrolyte composition is disposed between the anode and the cathode in a laterally non-continuous pattern. A method of producing an electrolyte layer of an electrochemical device is also disclosed.

Abstract: A system for treatment of thread includes a weft thread printer having an intake positioned to receive a weft thread from a source, as well as an encoder that is configured to detect a length of the weft thread as the weft thread moves through the weft thread printer along a travel path. The system also includes a printhead positioned to apply coatings of a plurality of colors to the weft thread and yield a treated weft thread, as well as an outlet positioned to pass the treated weft thread to a loom.

Abstract: An antimicrobial composition is disclosed. The antimicrobial coating composition includes at least one cured phase change ink which may include one or more crosslinked polymers, a photoinitiator, a wax, a gellant, and an antimicrobial additive. The composition also includes an engineered surface topography formed by the cured phase change ink. A method of preparing a textured antimicrobial surface is also disclosed. The method may include designing a template having a texture, printing the template onto a substrate using an uncured antimicrobial ink, and providing a light source to crosslink the uncured antimicrobial ink.

Abstract: The present disclosure is directed to a hybrid conductive ink including: silver nanoparticles and eutectic low melting point alloy particles, wherein a weight ratio of the eutectic low melting point alloy particles and the silver nanoparticles ranges from 1:20 to 1:5.

Abstract: An electrochemical device is disclosed. The electrochemical device includes an anode and a cathode, and a cured electrolyte composition disposed between the anode and the cathode, where at least a portion of the electrolyte composition interpenetrates at least a portion of both the anode and the cathode. A stacked geometry electrochemical device is disclosed. The stacked geometry electrochemical device includes a first electrode and a second electrode, and a cured electrolyte composition defining a top surface in contact with the first electrode, a bottom surface in contact with the second electrode, and a peripheral edge not in contact with the first electrode and the second electrode. The device also includes a mold wall disposed at the peripheral edge surrounding and contacting the cured electrolyte composition, where at least a portion of the mold wall is transmissible to curing radiation. A method of producing an electrolyte layer of an electrochemical device is also disclosed.

Abstract: When making parts by additive manufacturing, particularly by fused filament fabrication, it is sometimes necessary to include a removable support during part fabrication due to the shape of the part. An overhang, for instance, may be fabricated using a support structure, which is subsequently eliminated following polymer matrix consolidation. Elimination of a removable support following part fabrication may be problematic in some instances. Polymer filaments suitable for forming removable supports during additive manufacturing may comprise at least one imide polymer having at least partial solubility in aqueous fluids. Imide polymers may include, for example, polyimides and polyesterimides. Additive manufacturing processes may comprise forming a supported part by depositing a build material and a removable support comprising an imide polymer, wherein at least a portion of the build material is deposited upon the removable support.

Abstract: An electrochemical device is disclosed and may include an electrolyte composition disposed between the anode and the cathode and a water vapor barrier which may include a biodegradable material, where the water vapor barrier is disposed to prevent water vapor escaping from the electrochemical device. The water vapor barrier further may include poly lactic acid or a metalized coating. The water vapor barrier further may further include multiple layers and have a water vapor transmission rate (WVTR) less than or equal to 2 wt % over 24 hours. Embodiments of the water vapor barrier may also include a polymeric biodegradable material or a metalized coating disposed onto the biodegradable material. The water vapor barrier may also include multiple layers and may have a water vapor transmission rate (WVTR) less than or equal to 1 mg per cm2 over 24 hours.

Abstract: An electrochemical device is disclosed, including a first substrate layer. The electrochemical device also includes an anode disposed upon the first substrate layer. The device also includes a second substrate layer. The electrochemical device also includes a cathode disposed upon the second substrate layer, and an electrolyte composition disposed between and in contact with the anode and the cathode. The electrochemical device also includes a sealing layer which may include a 3D-printed sealing layer composition disposed between the first substrate layer and the second substrate layer. A 3D-printed sealing layer and a method of producing a sealing layer is disclosed.

Abstract: An electrochemical device including a first substrate layer is disclosed. The electrochemical device also includes an anode disposed upon the first substrate layer. The device also includes a second substrate layer. The electrochemical device also includes a cathode disposed upon the second substrate layer and an electrolyte composition disposed between and in contact with the anode and the cathode. The electrochemical device also includes an extruded sealing layer composition disposed between the first substrate layer and the second substrate layer. A sealing layer composition and a method of producing a sealing layer is also disclosed.

Abstract: Examples of the present disclosure include an electrochemical device. The electrochemical device includes a first substrate layer. The electrochemical device also includes an anode disposed upon the first substrate layer. The electrochemical device also includes a second substrate layer. The electrochemical device also includes a cathode disposed upon the second substrate layer. The electrochemical device also includes an electrolyte composition disposed between and in contact with the anode and the cathode. The electrochemical device also includes a sintered sealing layer composition disposed between the first substrate layer and the second substrate layer. A sintered sealing layer composition and methods for producing are also disclosed.

Abstract: An electrochemical device is disclosed, which includes an anode and a cathode. The electrochemical device also includes an extruded electrolyte composition disposed between the anode and the cathode. The cathode and/or the anode of the electrochemical device may be disposed in a stacked geometry or in a lateral x-y plane geometry. The electrolyte composition may include a gel polymer electrolyte. The electrolyte composition is disposed between the anode and the cathode in a laterally non-continuous pattern. A method of producing an electrolyte layer of an electrochemical device is also disclosed.

Abstract: An electrochemical device is disclosed, which may include an anode, a cathode, and a molded electrolyte composition disposed between the anode and the cathode. Implementations of the electrochemical device may include where the cathode and/or the anode are disposed in a stacked geometry. The electrolyte composition may include a gel polymer electrolyte, which can include a hydrogel of a copolymer and a salt dispersed in the hydrogel of a copolymer. The electrolyte composition may alternatively include a crosslinker or a photoinitiator.

Abstract: An example composition is disclosed. For example, the composition includes a ultra-violet (UV) curable mixture of water, an acid, a phosphine oxide with one or more photoinitiators, a water miscible polymer, a salt, and a neutralizing agent. The composition can be used to form an electrolyte layer that can be cured in the presence of air when printing the thin-film battery.

Abstract: A method for marking a printed object is disclosed. For example, the method includes printing a three-dimensional (3D) object via a fused filament fabrication (FFF) printer, receiving a desired color marking to be marked on a surface of the 3D object, and controlling a point energy source to emit energy on a thermal treatment layer of the 3D object in accordance with the desired color marking.

Abstract: The present disclosure is directed to a hybrid conductive ink including: silver nanoparticles and eutectic low melting point alloy particles, wherein a weight ratio of the eutectic low melting point alloy particles and the silver nanoparticles ranges from 1:20 to 1:5.

Abstract: The present disclosure is directed to a hybrid conductive ink including: silver nanoparticles and eutectic low melting point alloy particles, wherein a weight ratio of the eutectic low melting point alloy particles and the silver nanoparticles ranges from 1:20 to 1:5.

Abstract: A biodegradable solid aqueous electrolyte composition, an electrochemical device incorporating the electrolyte composition, and methods for the same are provided. The electrolyte composition may include a hydrogel of a copolymer and a salt dispersed in the hydrogel. The copolymer may include at least two polycaprolactone chains attached to a polymeric center block. The electrochemical device may include an anode, a cathode, and the electrolyte composition disposed between the anode and the cathode. The electrolyte composition may include a crosslinked, biodegradable polymeric material that is radiatively curable prior to being crosslinked.

Abstract: An antimicrobial composition is disclosed. The antimicrobial coating composition includes at least one cured phase change ink which may include one or more crosslinked polymers, a photoinitiator, a wax, a gellant, and an antimicrobial additive. The composition also includes an engineered surface topography formed by the cured phase change ink. A method of preparing a textured antimicrobial surface is also disclosed. The method may include designing a template having a texture, printing the template onto a substrate using an uncured antimicrobial ink, and providing a light source to crosslink the uncured antimicrobial ink.

Abstract: A biodegradable solid aqueous electrolyte composition, an electrochemical device incorporating the electrolyte composition, and methods for the same are provided. The electrolyte composition may include a rubber-like hydrogel including a copolymer and a salt. The copolymer may include at least two polycaprolactone chains coupled with a polymeric center block. The polymeric center block may include polyvinyl alcohol. The hydrogel may be biodegradable. The electrochemical device may include an anode, a cathode, and the electrolyte composition disposed between the anode and the cathode.