A fixing device to fix a toner image on a sheet includes a first rotary member that rotates in a predetermined direction and a second rotary member that contacts an outer circumferential surface of the first rotary member. A stationary member is fixed inside the first rotary member to press the first and second rotary members together to form a nip portion between the rotary members. A reinforcement member is fixedly provided inside the first rotary member and pressed against the stationary member. The fixing device includes heat source to heat the first rotary member and a reflector to reflect heater light emitted from the heat source toward the first rotary member.

Fixing device and image forming apparatus including same

Provided is an anode active material layer for a lithium battery. This layer comprises multiple particulates of an anode active material, wherein at least a particulate is composed of one or a plurality of particles of a high-capacity anode active material being encapsulated by a thin layer of elastomeric material that has a lithium ion conductivity no less than 10 −7 S/cm (preferably no less than 10 −5 S/cm) at room temperature and an encapsulating shell thickness from 1 nm to 10 μm, and wherein the high-capacity anode active material (e.g. Si, Ge, Sn, SnO 2 , Co 3 O 4 , etc.) has a specific capacity of lithium storage greater than 372 mAh/g (the theoretical lithium storage limit of graphite).

Elastomer-Encapsulated particles of high-capacity anode active materials for lithium batteries

A composite anode active material includes: a core comprising silicon; and a carbonaceous shell, wherein the carbonaceous shell includes a carbonaceous material and lithium titanium oxide.

Composite anode active material, anode including the same, and lithium secondary battery including the anode

Composites of silicon and various porous scaffold materials, such as carbon material comprising micro-, meso- and/or macropores, and methods for manufacturing the same are provided. The compositions find utility in various applications, including electrical energy storage electrodes and devices comprising the same.

Novel materials with extremely durable intercalation of lithium and manufacturing methods thereof

Provided is an anode active material layer for a lithium battery. The anode active material layer comprises multiple anode active material particles and an optional conductive additive that are bonded together by a binder comprising a high-elasticity polymer having a recoverable or elastic tensile strain no less than 10% when measured without an additive or reinforcement in the polymer and a lithium ion conductivity no less than 10−5 S/cm at room temperature. The anode active material preferably has a specific lithium storage capacity greater than 372 mAh/g (e.g. Si, Ge, Sn, SnO2, Co3O4, etc.).

Polymer binder for lithium battery and method of manufacturing

A negative electrode includes a current collector; and a negative active material layer on at least a surface of the current collector. The negative active material layer includes a porous matrix including lithium titanium oxide particles and metal nanoparticles that are alloyable with lithium. An average particle diameter of the lithium titanium oxide particles is at least two times greater than an average particle diameter of the metal nanoparticles.

Negative electrode, lithium battery including the same and method of manufacturing lithium battery

A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si 3 Al 3 Fe 2 and Si 2 Fe in a ratios suitable to improve the lifespan of the lithium battery.

Negative active material, negative electrode and lithium battery including the negative active material, and method of preparing the negative active material

A solid oxide fuel cell having a coupling structure, the solid oxide fuel cell including a plurality of cells, each cell having a cell cap at an end thereof; and the coupling structure, the coupling structure connecting the plurality of cells, wherein the coupling structure includes a connector, the connector including an insulating portion at a center thereof, and coupling portions adjacent to the insulating portion at respective sides of the insulating portion and coupled to the cell caps.

Solid oxide fuel cell including a coupling structure

A unit cell of a solid oxide fuel cell (“SOFC”) and a fuel cell stack including the SOFC are disclosed. The SOFC may include a first electrode formed in a hollow cylinder shape, a second electrode formed on an outer surface of the first electrode, an electrolyte layer formed between the first electrode and the second electrode and a cap coupled to an end portion of the first electrode. A seating groove may be formed in the cap such that a conductor may be inserted into the seating groove and be in surface contact with the cap. The cap may include a conductive material and a current collection area of the unit cell may be broad when the fuel cell is included in, a fuel cell stack.

Unit cell of solid oxide fuel cell and stack using the same

A manifold for distributing and supplying a fluid to solid oxide fuel cell (SOFC) cells. The manifold may include at least one opening disposed at one side surface of a housing to allow the fluid to flow into the housing therethrough. A plurality of second openings are disposed at another side surface of the housing to allow the fluid to be discharged out from the housing therethrough. A porous member is disposed to partition an internal space of the housing between the first opening and the plurality of second openings. In the manifold, the porous member is formed so that the first opening ratio per unit area at a first portion positioned adjacent to the first opening varies with increasing distance toward a second portion positioned distant from the first opening.

Manifold and solid oxide fuel cell module having the same

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