A main object of the present disclosure is to provide an anode slurry that gives an all solid state battery with suppressed fluctuation of restraining pressure. The present disclosure achieves the object by providing an anode slurry for an all solid state battery, the anode slurry including a Si-based anode active material, a first dispersion medium and a second dispersion medium; and the anode slurry satisfying: (i) when a hydrogen bond term σH of Hansen solubility parameter of, the Si-based anode active material, the first dispersion medium, and the second dispersion medium, are respectively regarded as σH.sub.Si, σH.sub.1 and σH.sub.2, and when ΔσH.sub.1=σH.sub.Si−σH.sub.2, and ΔσH.sub.2=σH.sub.Si−σH.sub.2, the ratio ΔσH.sub.2/ΔσH.sub.1, which is a ratio of ΔσH.sub.2 with respect to ΔσH.sub.1 is 0.96 or less; (ii) when T.sub.1 designates a boiling point of the first dispersion medium, and T.sub.2 designates a boiling point of the second dispersion medium, T.sub.2−T.sub.1≤3° C.; and (iii) when W.sub.1 designates a content of the first dispersion medium and W.sub.2 designates a content of the second dispersion medium, 0.1≤W.sub.2/(W.sub.1+W.sub.2)≤0.25.

Power sources that enable in-body devices, such as implantable and ingestible devices, are provided. Aspects of the in-body power sources of the invention include a solid support, a first high surface area electrode and a second electrode. Embodiments of the in-power sources are configured to emit a detectable signal upon contact with a target physiological site. Also provided are methods of making and using the power sources of the invention.

Provided herein is an electrically conductive, chemically insulated network of nanofibers that includes first carbon nanofibers electrically connected to second carbon nanofibers to form an electrically conductive network, and second carbon nanofibers electrically connected to other second carbon nanofibers, wherein at least one of the second carbon nanofibers is in direct surface contact with another of the second carbon nanofibers; and an active material that provides electrochemical insulation on surfaces of the first carbon nanofibers and partial surfaces of at least a portion of the second carbon nanofibers, wherein the active material comprises at least 50% by weight of the electrically conductive, chemically insulated network, and wherein the active material provides electrochemical insulation to the entirety of the electrically conductive, chemically insulated network of nanofibers including the area between the first carbon nanofibers and the second carbon nanofibers.

A high-energy-density, high-cycling-life Si-based anode is used for rechargeable Lithium-ion batteries with either solid-state electrolyte or currently commercialized liquid electrolyte. The Si-based anodes include a silicon-based active material, conductive agent(s), and polymer(s) that act as binder(s). The silicon-based active material includes silicon, graphite, metallic or non-metallic oxide, and/or a polymer. The electrode has a specific capacity of at least 2328 mAh/g when cycled at a charge-discharge rate of about 0.5 C and 3245 mAh/g at 0.05 C. Sheets of the Si-based electrode are processable with a well-established industrial process that is cost-effective, scalable, and compatible with currently used Li-ion production lines. A lithium electrochemical pouch cell is manufactured with the Si-based anode sheet with either a liquid electrolyte or a solid-state electrolyte to offer high energy density, long cycle life, and high charge/discharge rates.

Power sources that enable in-body devices, such as implantable and ingestible devices, are provided. Aspects of the in-body power sources of the invention include a solid support, a first high surface area electrode and a second electrode. Embodiments of the in-power sources are configured to emit a detectable signal upon contact with a target physiological site. Also provided are methods of making and using the power sources of the invention.

A method for forming a battery anode can include: forming a slurry including active material comprising silicon particles, wherein the silicon particles can be derived from silica fumes, depositing the slurry on an current collector, drying the deposited slurry to form a deposited film, and compacting the deposited film to form the battery anode.

The present invention relates to a foam material comprising:—a structural matrix (1),—at least one guest phase (2), and—a fluid, the material being characterised in that the structural matrix (1) comprises a plurality of interconnected pores (3), the one or more guest phases (2) are accommodated inside at least one pore (3) of the structural matrix (1) and the fluid is accommodated inside the pores (3). The present invention further relates to the process for preparing the foam material according to the present invention and to the various uses of the foam material according to the present invention.

A binder composition for a non-aqueous secondary battery contains water-soluble macromolecules, water, and a particulate polymer formed of a polymer that includes a block region formed of an aromatic vinyl monomer unit. Surface acid content A of the particulate polymer is 0.05 mmol/g or more, acid content B in an aqueous phase of the binder composition per 1 g of the particulate polymer is not less than 0.03 mmol/g and not more than 0.80 mmol/g, and a ratio (A/B) of the surface acid content A of the particulate polymer and the acid content B in the aqueous phase of the binder composition is not less than 0.5 and not more than 5.0.

A composite lithium metal negative electrode, a preparation method thereof, a lithium secondary battery, and an apparatus are provided. In some embodiments, the composite lithium metal negative electrode includes lithium metal and a lithium buffer layer on at least one surface of the lithium metal. The lithium buffer layer includes a porous framework and a lithiophilic material, where the porous framework is a conductive porous framework, the lithiophilic material is distributed in the porous framework, and a distribution density of the lithiophilic material in the porous framework decreases in a continuous gradient in a direction of the lithium buffer layer away from the lithium metal. A conductive lithium buffer layer with a continuous gradient change in lithiophilicity is added on a surface of the lithium metal negative electrode.

The non-aqueous electrolyte battery is excellent in high-temperature storage characteristics and load characteristics at low temperature. A non-aqueous electrolyte battery of the present invention includes a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte. The negative electrode includes a lithium layer, a lithium-aluminum alloy layer formed on a surface of the lithium layer, and a carbon layer on the lithium-aluminum alloy layer. The non-aqueous electrolyte battery of the present invention can be manufactured by a method for manufacturing a non-aqueous electrolyte battery that includes providing an aluminum layer on the surface of the lithium layer to obtain a laminate, forming the carbon layer on a surface of the aluminum layer to obtain a laminate for a negative electrode, and causing the lithium layer and the aluminum layer of the laminate for a negative electrode to react with each other to form the lithium-aluminum alloy layer.