Nano and Advanced Materials Institute Limited

Shengbo Lu

Chenmin Liu

Yong Zhu

Cheuk Yin Lee

Yam Chong

Ou Dong

Wing Lung Hon

Chi Ho Kwok

Li Fu

Jianping Han

Soon Yee Liew

Yu Tat Tse

Hong Zhao

Heng Liu

Hui Pan

Yuen Yung Chan

Zhengfu Qiu

Kevin Tan

Juncao Bian

Sing Ho Lo

Wai Yin Wong

A solar-powered position tracker includes a load including one or more of a GPS module, a GPS antenna, a GSM module, or a GSM antenna. The load is powered by a rechargeable battery, which may be charged by one or more of a non-rechargeable primary battery and a solar cell. The solar-powered position tracker includes a battery management system for powering the position tracker by controlling the solar cell, rechargeable battery and the non-rechargeable primary battery. The two-stage battery management system charges the rechargeable battery in two stages and includes a solar management and protection circuit interconnecting the solar cell, and the rechargeable battery. The battery management system is configured to execute a charging process for recharging the rechargeable battery from solar cell and protect the rechargeable battery under a high pulse current discharge process to meet a high current or high pulse current discharge demand by the load.

Solar and battery powered long lasting tracker

The present invention provides a lithium metal battery having a lithium metal electrode including a cathode, an anode, a separator positioned between the cathode and the anode, an electrolyte, and a lithium metal negative electrode. The lithium metal negative electrode includes a lithium reactive metal layer, the lithium reactive metal layer being formed on a support conductive layer. A dendrite-suppressing coating is formed over the lithium reactive metal layer; the dendrite-suppressing coating is a displacement-reacted metal including silver reacted from decomposition of a silver salt and having an interface reaction product formed from a reaction between the silver salt and the lithium reactive metal layer. The interface reaction product is positioned between the displacement-reacted metal layer and the lithium reactive metal layer. The dendrite suppressing coating permits lithium metal ions to permeate the coating to react electrolytically in an overall battery reaction.

Lithium metal battery with dendrite-suppressing coating and production method for same

A solventless method of making a dry electrode for an electrochemical cell is provided. A solventless electrode material mixture includes 85-99% electrode active material and from 0-10% conductive carbon additive. A polymer binder system is present from 1-15%. The polymer binder system includes one or more polymer binders. The electrode material mixture is mixed at a temperature greater than a softening point or a melting point of at least one polymer binder of the polymer binder system. The electrode material mixture is kneaded into an electrode material dough. The electrode material dough is formed into an electrode material sheet. At least a portion of the electrode material sheet is affixed to a metal current collector to form an electrode.

Fabrication of lithium battery dry electrodes

The present invention provides a thermally-decomposable consolidated polymer particle encapsulated-electrode for a lithium-ion battery. The electrode includes polymer particles including at least one connection unit and at least one crosslinker in an amount of approximately 40% to 98% by weight and at least one binder material in an amount of approximately from 2% to 60% by weight. The consolidated crosslinked polymer particle coating results in a porous structure encapsulating the electrode. The pressure resistance of the consolidated crosslinked polymer particle coating ranges approximately from 0.5 to 8 MPa and the consolidated crosslinked polymer particle coating is decomposed to release a non-flammable gas and phosphorous-containing molecules so as to prevent thermal runaway at a temperature approximately from 300° C. to 500° C.

Thermal responsive electrode structure for lithium-ion batteries

An amorphous composite solid electrolyte is provided that includes one or more three-dimensional branched macromolecules with a core portion and at least three arm portions connected to the core portion. Each arm portion includes a random copolymer or a block polymer comprising a first monomer and a second monomer with a molar ratio of the first monomer to the second monomer in the range from greater than 0 to less than or equal to 1. An ion conductive electrolytic solution including at least one lithium salt solution in an amount of approximately 1 mol/l to 10 mol/l is entrained within the branched macromolecule, with a weight ratio of the branched macromolecule to the ion conducive electrolytic solution equal to or lower than 1:9, such that the branched macromolecule has a swelling degree of at least 5:1 (liquid:polymer in weight) of the ion conductive electrolytic solution.

Cross-linked organic-inorganic solid composite electrolyte for lithium secondary batteries

The present invention provides a rechargeable lithium-ion battery with an in situ thermally-curable electrolyte. The thermally-curable electrolyte is cured from the thermally-curable electrolyte precursor solution including a first crosslinking agent, a second crosslinking agent, an initiator, an electrolyte solvent, an electrolyte salt, one or more electrolyte additives, and one or more monomers or a monomer polymerization product. The viscosity of the thermally-curable electrolyte precursor solution is below 200 cps such that the thermally-curable electrolyte precursor solution is infiltrated within the separator and the pores inside the cathode and anode layers then cured to form porous separator and porous electrodes fully permeated with a solid electrolyte.

Secondary lithium-ion batteries comprising in situ thermal curable solid composite electrolyte

An electronically-activated, self-molding and re-shapeable load-bearing support structure system is provided that includes a first composite structure. The first composite structure includes a first layer of a first thermally-responsive polymer; one or more first heating elements positioned adjacent to the first layer on a first heating element side; a second layer of the first thermally-responsive polymer positioned adjacent to the first heating elements on a second heating element side; a temperature sensor communicating with at least the first layer or the second layer of the first thermally-responsive polymer; one or more electrical connectors electrically communicating with the heating elements; and an electrical controller detachably connectable to at least one of the electrical connectors of the composite for providing an electrical current to the heating elements. A method of molding the load-bearing support structure system is also provided.

Electronically-activated, self-molding and re-shapeable load-bearing support structure system and methods for molding thereof

The present invention provides a charging device for a button/coin cell rechargeable lithium ion battery. A receiving inductor coil receives energy from a transmitting inductor coil which is passed to a wireless charging receiving circuit which is in electrical communication with the receiving inductor coil. The wireless charging receiving circuit communicates with a charging control circuit, a voltage regulation circuit, and a battery protection circuit in electrical communication with one another. The voltage regulation circuit includes a 1.8 V to 3.3 V constant voltage output regulator circuit to maintain a constant voltage output in loading currents ranging from approximately 10 &#x3bc;A to approximately 300 mA.

Wireless charging for rechargeable button cell battery

A fast charge lithium ion battery capable of being charged or discharged with 80% capacity retention at C rate of at least 2C is provided in the present invention, which includes a fast charge graphite-based anode; a cathode; and a separator, wherein the anode includes an anode current collector and a fast charge graphite layer deposited on at least one surface of the anode current collector, the fast charge graphite having a lattice constant equals to or larger than 0.3374 nm, a D-band to G-band integrated area ratio (I/I) of 0.03 to 0.3, and a surface morphology of a plate-like crystal structure under a scanned electron microscope; the cathode includes a cathode current collector and one or more active materials deposited on at least one surface of the cathode current collector.

High energy density fast charge Li ion battery and the method of preparing the same

A bendable wireless charging apparatus having an operational bend radius of approximately 90 degrees is disclosed, which includes a flexible substrate, a receiving coil, a battery, a flexible EMI-shielding layer and a control module. The receiving coil is disposed on a surface of the substrate, and is electrically connected to the control module. The battery, which may also be flexible, is located beneath another surface of the substrate. The EMI-shielding layer is disposed between the receiving coil and the battery.

Bendable wireless charging apparatus

A shoe closure device comprising: a housing including a top cover portion and a bottom cover portion; a shape memory shoe fastener; a first electrically-powered heater positioned above the shape-memory shoe fastener; a second electrically-powered heater positioned beneath the shape memory shoe fastener; a rechargeable battery positioned within the housing and electrically communicating with each of the first and second electrically-powered heaters; a controller electrically communicating with the rechargeable battery and positioned within the housing, the controller including a microprocessor, a battery charging control circuit, and a wireless charging receiver, the controller configured to heat the shape memory shoe fastener to return each of the shape memory polymer strips to the shape-recovered configuration to close a shoe; an actuator communicating with the controller to actuate the controller to heat the shape memory shoe fastener.

Shoe closure device

A flexible and foldable lithium ion battery is disclosed having an operational bend radius of 180 degrees with no interruption in supply of electrical power. The lithium ion battery includes a high-elasticity separator sponge having a porosity of approximately 70% to approximately 90%. The separator is a polymer-based fiber mat having fibers with a submicron diameter. The separator sponge has a thickness in a range of approximately 5 to 50 microns, an air permeability of approximately 100 to approximately 300 s/100 ml, and a puncture resistance of approximately 350 to approximately 950 N. First and second electrodes are disposed on either side of the separator sponge and include active materials positioned on thin metal current collectors. A liquid electrolyte is absorbed by the separator sponge. The battery may be folded upon itself without loss of power.

Growing community of inventors

Hong Kong, China

Shengbo Lu