Sharp Laboratories of America, Inc

Hidayat Kisdarjono

Jong-Jan Lee

Yuhao Lu

David R Evans

Apostolos T Voutsas

Paul John Schuele

Mark Albert Crowder

Sean Vail

Long Wang

An alkali/oxidant battery is provided with an associated method of creating battery capacity. The battery is made from an anode including a reduced first alkali metal such as lithium (Li), sodium (Na), and potassium (K), when the battery is charged. The battery's catholyte includes an element, in the battery charged state, such as nickel oxyhydroxide (NiOOH), manganese(IV) (oxide MnO), or iron(III) oxyhydroxide Fe(OH)), with the alkali metal hydroxide. An alkali metal ion permeable separator is interposed between the anolyte and the catholyte. For example, if the catholyte includes nickel(II) hydroxide (Ni(OH)) in a battery discharged state, then it includes NiOOH in a battery charged state. To continue the example, the anolyte may include dissolved lithium ions (Li) in a discharged state, with solid phase reduced Li formed on the anode in the battery charged state.

Alkali/oxidant battery

A battery and an associated method are provided for generating power using an air cathode battery with a slurry anode. The method provides a battery with an air cathode separated from an anode current collector by an electrically insulating separator and an extrusion gap. The anode current collector extruder has a first plate with a plurality of slurry outlet perforations, and a sleeve having a first partition immediately adjacent to the extruder first plate, with a plurality of slurry inlet perforations. Active slurry is provided under pressure to an extruder inlet, and the extruder first plate slurry outlet perforations are selectively aligned with sleeve first partition slurry inlet perforations. Active slurry deposits are formed in the extrusion gap to mechanically charge the battery. In the discharge position, the sleeve moves so that the perforations no longer align, and slurry in the extruder is isolated from slurry in the extrusion gap.

Large-scale metal-air battery with slurry anode

A transition metal hexacyanoferrate (TMH) cathode battery is provided. The battery has a AMn[Fe(CN)].zHO cathode, where the A cations are either alkali or alkaline-earth cations, such as sodium or potassium, where x is in the range of 1 to 2, where y is in the range of 0.5 to 1, and where z is in the range of 0 to 3.5. The AMn[Fe(CN)].zHO has a rhombohedral crystal structure with Mnand Fehaving the same reduction/oxidation potential. The battery also has an electrolyte, and anode made of an A metal, an A composite, or a material that can host A atoms. The battery has a single plateau charging curve, where a single plateau charging curve is defined as a constant charging voltage slope between 15% and 85% battery charge capacity. Fabrication methods are also provided.

Transition metal hexacyanoferrate battery with carbonaceous anode

An air cathode battery is provided that uses a zinc slurry anode with carbon additives. The battery is made from an air cathode and a zinc slurry anode. The zinc slurry anode includes zinc particles, an alkaline electrolyte, with a complexing agent and carbon additives in the alkaline electrolyte. A water permeable ion-exchange membrane and electrolyte chamber separate the zinc slurry from the air cathode. The carbon additives may, for example, be graphite, carbon fiber, carbon black, or carbon nanoparticles. The proportion of carbon additives to zinc is in the range of 2.5 to 10% by weight. The proportion of alkaline electrolyte in the zinc slurry is in the range of 50 to 80% by volume.

Air cathode battery using zinc slurry anode with carbon additive

Transition metal hexacyanoferrate battery with single plateau charge/discharge curve

A supercapacitor is provided with a method for fabricating the supercapacitor. The method provides dried hexacyanometallate particles having a chemical formula AM1M2(CN).pHO with a Prussian Blue hexacyanometallate, crystal structure, where A is an alkali or alkaline-earth cation, and M1 and M2 are metals with 2+ or 3+ valance positions. The variable m is in the range of 0.5 to 2, x is in the range of 0.5 to 1.5, y is in the range of 0.5 to 1.5, and p is in the range of 0 to 6. The hexacyanometallate particles are mixed with a binder and electronic conductor powder, to form a cathode comprising AM1M2(CN).pHO. The method also forms an activated carbon anode and a membrane separating the cathode from the anode, permeable to A and A' cations. Finally, an electrolyte is added with a metal salt including A&#x2032; cations. The electrolyte may be aqueous.

Supercapacitor with hexacyanometallate cathode, activated carbon anode, and non-aqueous electrolyte

Transition metal hexacyanoferrate battery cathode with single plateau charge/discharge curve

A bottom-contacted top gate (TG) thin film transistor (TFT) with independent field control for off-current suppression is provided, along with an associated fabrication method. The method provides a substrate, and forms source and drain regions overlying the substrate, each having a channel interface top surface. A channel is interposed between the source and drain, with source and drain contact regions immediately overlying the source/drain (S/D) interface top surfaces, respectively. A first dielectric layer is formed overlying the source, drain, and channel. A first gate is formed overlying the first dielectric, having a drain sidewall located between the contact regions. A second dielectric layer is formed overlying the first gate and first dielectric. A second gate overlies the second dielectric, located over the drain contact region.

Top gate thin film transistor with independent field control for off-current suppression

A recessed-gate thin-film transistor (RG-TFT) with a self-aligned lightly doped drain (LDD) is provided, along with a corresponding fabrication method. The method deposits an insulator overlying a substrate and etches a trench in the insulator. The trench has a bottom and sidewalls. An active silicon (Si) layer is formed overlying the insulator and trench, with a gate oxide layer over the active Si layer. A recessed gate electrode is then formed in the trench. The TFT is doped and LDD regions are formed in the active Si layer overlying the trench sidewalls. The LDD regions have a length that extends from a top of the trench sidewall, to the trench bottom, with a doping density that decreases in response to the LDD length. Alternately stated, the LDD length is directly related to the depth of the trench.

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Vancouver, WA, United States of America

Hidayat Kisdarjono