The invention relates to complex framework materials (CFMs) for lithium-sulfur batteries. The CFMs include a CFM host and a coating applied to the CFM host, which includes one or more of an electronic conductor, a lithium ion conductor and a functional catalyst. Further, sulfur is infiltrated into the CFM host creating a sulfur-carbon linkage serving as effective anchors for trapping polysulfides. The systems have been tested in coin cells and pouch cells under lean electrolyte conditions of 3-4 μl/mg of electrolyte to sulfur ratios showing promise and feasibility.

A negative active material for an all solid-state includes an aggregated material of amorphous carbon having pores therein in which primary particles are aggregated, and metal nanoparticles filling in the pores.

A negative active material for an all solid-state includes an aggregated material of amorphous carbon having pores therein in which primary particles are aggregated, and metal nanoparticles filling in the pores.

A bilayer-structured silicon carbon composite anode material, a method of preparing the same, and a secondary battery including the same is provided. The method of preparing the anode material includes: drying a first mixture including graphite balls, a nano-silicon slurry, pitch, and flake graphite to prepare a dried product; sintering the dried product to prepare a sintered product including a hard coating layer formed on an outermost surface thereof and containing amorphous hard carbon; mixing the sintered product with a carbon precursor, followed by heat treatment to form a soft coating layer on an outer circumferential surface of the sintered product; and forming a carbon nanotube layer on an outer circumferential surface of the soft coating layer.

An anode plate, and a battery and electronic apparatus using such electrode plate, where the anode plate includes a porous anode skeleton, a lithiophilic substance whose concentration presents gradient distribution inside the porous anode skeleton, and a current collector. This application can relieve the anode plate from volume swelling during cycling, and inhibit the growth of lithium dendrites, thereby improving the safety performance and cycling performance of lithium-ion batteries.

A lithium-ion battery, including a battery cell, an electrolytic solution, and a packaging film. The battery cell is formed by winding a positive electrode plate and a negative electrode plate that are separated by a separator. The lithium-ion battery is half-charged to obtain a half-charged full battery. The half-charged full battery is stripped of the packaging film to obtain a half-charged cell. When a width of the half-charged full battery is w.sub.1, a width of the half-charged cell is w.sub.2, and g=w.sub.2/w.sub.1, the following conditional expression (1) is satisfied: 0.4<g<0.997. A negative active material of the negative electrode plate includes a silicon-based material. When a capacity per unit volume of the negative electrode plate is a, a and g satisfy the following conditional expression (2): 420 mAh/cm.sup.3<g×a<2300 mAh/cm.sup.3, where 619 mAh/cm.sup.3<a<3620 mAh/cm.sup.3. The present invention further provides an electronic device.

There is provided an electrode composition containing a sulfide-based inorganic solid electrolyte, a polymer binder, an active material having a specific surface area of 10 m.sup.2/g or more, and a dispersion medium, in which a polymer that forms the polymer binder has a constitutional component derived from a (meth)acrylic monomer or vinyl monomer, which has an SP value of 19.0 MPa.sup.1/2 or more. There also provided an electrode sheet for all-solid state secondary battery and an all-solid state secondary battery, and manufacturing methods for an electrode sheet for an all-solid state secondary battery and an all-solid state secondary battery, in which the electrode composition is used.

Batteries having a metal interlayer that acts as an ion conductor are provided, as well as methods of forming the same. The metal interlayer can include, for example, palladium, platinum, iridium, rhodium, ruthenium, osmium, gold, silver, or a combination thereof, and can act as a conductor while also inhibiting the transport of other species that would produce byproduct films and cause capacity degradation in the battery.

A method of preparing a lithium metal electrode, wherein the method includes providing a lithium metal strip, and providing a lubricant composition including a fluorine-based solvent and a fluorine-based compound on the lithium metal strip to obtain a coated lithium metal strip; and rolling the coated lithium metal strip to obtain the lithium metal electrode.

A method of preparing a lithium metal electrode, wherein the method includes providing a lithium metal strip, and providing a lubricant composition including a fluorine-based solvent and a fluorine-based compound on the lithium metal strip to obtain a coated lithium metal strip; and rolling the coated lithium metal strip to obtain the lithium metal electrode.