A battery module and a battery pack including the same. The battery module includes a battery cell stack including a plurality of battery cells, a housing for the battery cell stack, and a thermal conductive resin layer located between a lower surface of the housing and a first end of the battery cell stack. The first end of the battery cell stack has a double-folded seal part.

A method for fabrication of a 3D printed part with high through-plane thermal conductivity is provided, where pure polymer particles and a carbon-based filler for heat conduction are subjected to milling and mixing in the mechanochemical reactor disclosed in Chinese patent ZL 95111258.9 under the controlled milling conditions including milling pan surface temperature, milling pan pressure, and number of milling cycles; then a resulting mixture is extruded to obtain 3D printing filaments; and finally, the 3D printing filaments are used to fabricate the 3D printed part with high through-plane thermal conductivity through fused deposition modeling (FDM) 3D printing. The fabrication method can realize the fabrication of a 3D printed part with high through-plane thermal conductivity through the FDM 3D printing technology, features simple process, continuous production, etc., and is suitable for the industrial production of thermally-conductive parts with complex structures.

An ultrasound probe of the present invention has a piezoelectric element and a backing material disposed on one direction side with respect to the piezoelectric element, the backing material containing heat conductive particles. The backing material has a heat conductivity of 2.0 W/mk or more, and the content of the heat conductive particles is less than 30 vol % based on the total volume of the backing material.

Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.

In various aspects, the disclosure relates to a method of forming a molded article comprising: combining, to form a blend, a polymer base resin and a thermally conductive filler, wherein the thermally conductive filler comprises a platelet filler having a thickness between 100 nm and 10 microns; feeding the blend to a mold cavity of a suitable molding apparatus, wherein the mold cavity has a mold portion that may be retracted in a through-plane direction; foaming the blend to allow a pressure drop; and retracting the mold portion in the through-plane direction to provide the molded article.

A method for fabricating an article of manufacture includes forming a plurality of layers of the article based on a digital model of the article. Each layer of the plurality of layers may be formed by depositing at least two materials that differ from one another. The at least two materials may be deposited separately or simultaneously. The at least two materials may define separate regions of the layer and, thus, define distinct features of the article, and/or the at least two materials may be mixed or one of the materials may be dispersed throughout the other to define a blended zone in the layer. Blended zones of adjacent layers may be superimposed to define three-dimensional blended zones. A blended zone may be graded to provide transition between separate regions of the article that are formed from two or more different materials. Articles fabricated by such processes are also disclosed.

A composite material includes a matrix and a heat-conductive fiber. The matrix includes an organic polymer and forms a porous structure. The heat-conductive fiber is fixed in the porous structure by the matrix. A heat conductivity determined at ordinary temperature by a steady state heat flow method in a fiber axis direction of the heat-conductive fiber is 10 W/(m.Math.K) or more. A density d [g/cm.sup.3] of the composite material and a heat conductivity λ [W/(m.Math.K)] in a given direction of the composite material satisfy requirements d≤1.1, λ>1, and 4≤λ/d≤100.

The present disclosure provides a thermally conductive article including a pad having first and second opposed major surfaces and a thickness therebetween. The thickness is formed of entangled thermally conductive fibers and at least a portion of the entangled thermally conductive fibers have at least one terminal end at the first opposed major surface, the opposed second major surface, or both. The pad is at least partially impregnated with a polymer. Another thermally conductive article is provided including a) a pad having first and second opposed major surfaces and a thickness therebetween; b) a first thermally conductive skin layer; and c) a second thermally conductive skin layer. The thickness of the pad is formed of aligned thermally conductive fibers, and at least a portion of the thermally conductive fibers have a terminal end at the first opposed major surface and the opposed second major surface. The first and second thermally conductive skin layers each include a polymeric matrix at least partially embedded in the terminal end of at least a portion of the thermally conductive fibers at the first and second major surfaces of the pad, respectively. Methods of making the thermally conductive articles are also provided.

An in-situ hydrophobically modified aramid nano aerogel fiber as well as a preparation method and uses thereof are provided. The preparation method includes: providing an aramid nano spinning solution; preparing a hydrophobically modified aramid nano aerogel fiber by using a spinning technology, wherein the coagulating bath adopted by the spinning technology includes a first organic solvent and a halogenated reagent including a monochloroalkane, a monochloroalkane, a dibromoalkane, a dichloroalkane and a trichloroalkane; and then drying to obtain the in-situ hydrophobically modified aramid nano aerogel fiber. The in-situ hydrophobically modified aramid nano aerogel fiber has a unique three-dimensional porous network structure, low heat conductivity, high porosity, high tensile strength and elongation at break, a certain spinnability and structure stability, and can be applied to the field of textiles. A fabric knitted with the hydrophobic fibers has a self-cleaning ability.

A thermally conductive curing process adds conductive additives to create pathways for dissipating heat during a curing process, thereby reducing the cure time, increasing the output capability, and reducing cost. Conductive particles or short fibers can be dispersed throughout the resin system or composite fiber layers in pre-impregnated or RTM-processed composite material. By disposing conductive particles or short fibers in a resin as part of the curing process, heat generated during the curing process can dissipate more quickly from any type of composite, especially thick composites. Conductive additive examples include multi-walled carbon nanotubes (MWCNTs), single-walled carbon nanotubes (SWCNTs), graphene/graphite powder, buckyballs, short fibrous particulate, nano-clays, nano-particles, and other suitable materials.