Country
Full text data for US and EP
Status
Type
Filing Date
Publication Date
Inventor
Assignee
Click to expand
IPC
No.
Publication Number
Title
Publication/Patent Number Publication/Patent Number
Publication date Publication date
Application number Application number
Filing date Filing date
Inventor Inventor
Assignee Assignee
IPC IPC
1
US10170753B2
Publication/Patent Number: US10170753B2
Publication date: 2019-01-01
Application number: 14/992,800
Filing date: 2016-01-11
Abstract: The present invention relates to a nano-silicon composite negative electrode material, including graphite matrix and nano-silicon material homogeneously deposited inside the graphite matrix, wherein the nano-silicon composite negative electrode material is prepared by using silicon source to chemical-vapor deposit nano-silicon particles inside hollowed graphite. The nano-silicon composite negative electrode material of the present invention has features of high specific capacity (higher than 1000 mAh/g), high initial charge-discharge efficiency (higher than 93%) and high conductivity. The preparation process of the present invention is easy to operate and control, and has low production cost and is suitable for industrial production. The present invention relates to a nano-silicon composite negative electrode material, including graphite matrix and nano-silicon material homogeneously deposited inside the graphite matrix, wherein the nano-silicon composite negative electrode material is prepared by using ...more ...less
2
US10177368B2
Publication/Patent Number: US10177368B2
Publication date: 2019-01-08
Application number: 15/105,392
Filing date: 2014-12-17
Abstract: An anode compartment for rechargeable lithium or sodium batteries, including: a solid electrolyte; a collector deposited on the solid electrolyte; and an active material made of lithium metal or sodium metal which has been grown between the solid electrolyte and the collector in order to form an electrode made of lithium metal or sodium metal with the collector, in which the collector is made of an amorphous alloy. A method for manufacturing such an anode compartment and a battery including said anode compartment is also presented. An anode compartment for rechargeable lithium or sodium batteries, including: a solid electrolyte; a collector deposited on the solid electrolyte; and an active material made of lithium metal or sodium metal which has been grown between the solid electrolyte and the collector in ...more ...less
3
US10347901B2
Publication/Patent Number: US10347901B2
Publication date: 2019-07-09
Application number: 15/354,640
Filing date: 2016-11-17
Abstract: A method of preparing an electrode for a lithium-ion battery includes mixing a magnetic, electrically conductive material with a lithium conductive polymer; forming tubes of the polymer and magnetic, electrically conductive material; mixing the tubes with a slurry of an electrode material; coating a current collector with the slurry; and applying a magnetic field to the slurry to align the tubes within the slurry in relation to the current collector. The aligned tubes form electrical and ionic conductive pathways within the slurry. The tubes have a length less than half a thickness of the slurry. A method of preparing an electrode for a lithium-ion battery includes mixing a magnetic, electrically conductive material with a lithium conductive polymer; forming tubes of the polymer and magnetic, electrically conductive material; mixing the tubes with a slurry of an ...more ...less
4
US10347908B2
Publication/Patent Number: US10347908B2
Publication date: 2019-07-09
Application number: 14/951,724
Filing date: 2015-11-25
Assignee: HITACHI, LTD.
Abstract: A lithium ion secondary battery having a negative electrode includes a negative electrode active material containing at least one of two material of silicon and a silicon compound and carbon, a weight mixing ratio of at least one of two material of the silicon and the silicon compound and the carbon is 20:80 to 50:50, when D90 of particles of at least one of two material of the silicon and the silicon compound is x, D50 of particles of the carbon is y, and the weight mixing ratio of the carbon is z, y≤−1.17x+0.45z is satisfied, the x is between 2 μm and 10 μm, the y is between 10 μm and 23 μm, and the z is between 50% and 80% by weight, and a coefficient of expansion when the negative electrode is fully charged is 110% or more and 140% or less. A lithium ion secondary battery having a negative electrode includes a negative electrode active material containing at least one of two material of silicon and a silicon compound and carbon, a weight mixing ratio of at least one of two material of the silicon and the silicon ...more ...less
5
US10367228B2
Publication/Patent Number: US10367228B2
Publication date: 2019-07-30
Application number: 15/681,431
Filing date: 2017-08-21
Assignee: Seeo, Inc.
Abstract: New homopolymers and copolymers of diester-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic conductivities make them especially suitable as electrolytes in high energy density lithium battery cells. New homopolymers and copolymers of diester-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their ...more ...less
6
US10388930B2
Publication/Patent Number: US10388930B2
Publication date: 2019-08-20
Application number: 15/316,841
Filing date: 2015-05-28
Inventor: Sasaki, Tomokazu  
Abstract: Disclosed is a laminate for non-aqueous secondary battery which includes a water-soluble polymer-containing functional layer and an adhesive layer adjacently disposed on the functional layer, and which can suppress reductions in peel strength of a battery member including the laminate while allowing the functional layer to exert its expected function. The disclosed laminate includes a functional layer containing functional particles and a water-soluble polymer, and an adhesive layer adjacently disposed on the functional layer, wherein a film obtained by shaping of the water-soluble polymer has a water drop contact angle of 30° to 80°. Disclosed is a laminate for non-aqueous secondary battery which includes a water-soluble polymer-containing functional layer and an adhesive layer adjacently disposed on the functional layer, and which can suppress reductions in peel strength of a battery member including the ...more ...less
7
US10388947B2
Publication/Patent Number: US10388947B2
Publication date: 2019-08-20
Application number: 14/615,782
Filing date: 2015-02-06
Abstract: Graphitic carbon nitride materials are shown to be useful in Lithium-Sulfur electrochemical cells. Batteries that include this material exhibit increased electrode kinetics of the lithium-sulfur electrochemical couple, phenomena that improve the specific capacity, usable lifetime and other desirable characteristics of these batteries. Lithium-sulfur batteries that incorporate these materials can be used to overcome a number of limitations in this technology. Graphitic carbon nitride materials are shown to be useful in Lithium-Sulfur electrochemical cells. Batteries that include this material exhibit increased electrode kinetics of the lithium-sulfur electrochemical couple, phenomena that improve the specific capacity, usable ...more ...less
8
US10388960B2
Publication/Patent Number: US10388960B2
Publication date: 2019-08-20
Application number: 15/657,893
Filing date: 2017-07-24
Abstract: A non-aqueous electrolyte battery is provided that shows good cycle performance and good storage performance under high temperature conditions and exhibits high reliability even with a battery configuration featuring high capacity. A method of manufacturing the battery is also provided. A non-aqueous electrolyte battery includes: a positive electrode having a positive electrode active material layer containing a positive electrode active material; a negative electrode having a negative electrode active material layer containing a negative electrode active material; a separator interposed between the positive electrode and the negative electrode; an electrode assembly including the positive electrode, the negative electrode, and the separator; and a non-aqueous electrolyte impregnated in the electrode assembly, characterized in that: the positive electrode active material contains at least cobalt or manganese; and a coating layer is formed on a surface of the negative electrode active material layer, the coating layer including filler particles and a binder. A non-aqueous electrolyte battery is provided that shows good cycle performance and good storage performance under high temperature conditions and exhibits high reliability even with a battery configuration featuring high capacity. A method of manufacturing the battery is also ...more ...less
9
US10396358B2
Publication/Patent Number: US10396358B2
Publication date: 2019-08-27
Application number: 15/342,518
Filing date: 2016-11-03
Abstract: The nonaqueous electrolyte secondary battery provided by the present invention has a positive electrode 50 that has a positive electrode active material layer 54, a negative electrode 60 that has a negative electrode active material layer 64, and separators 70, 72 interposed between the positive electrode active material layer 54 and the negative electrode active material layer 64. The positive electrode active material layer 54 contains a positive electrode active material and an inorganic phosphate compound that contains an alkali metal and/or an alkaline-earth metal. A phosphate ion scavenger that scavenges a phosphate ion is disposed between the positive electrode active material layer 54 and the negative electrode active material layer 64 and/or in the negative electrode active material layer 64. The nonaqueous electrolyte secondary battery provided by the present invention has a positive electrode 50 that has a positive electrode active material layer 54, a negative electrode 60 that has a negative electrode active material layer 64, and separators 70, 72 interposed ...more ...less
10
US10205163B2
Publication/Patent Number: US10205163B2
Publication date: 2019-02-12
Application number: 15/196,316
Filing date: 2016-06-29
Abstract: A battery including an anode with an anode active material layer that includes anode active material particles made of an anode active material including at least one of silicon and tin as an element. An oxide-containing film including an oxide of at least one kind selected from the group consisting of silicon, germanium and tin is formed in a region of the surface of each anode active material particle in contact with an electrolytic solution by a liquid-phase method such as a liquid-phase deposition method. The region in contact with the electrolytic solution of the surface of each anode active material particle is covered with the oxide-containing film. The thickness of the oxide-containing film is preferably within a range from 0.1 nm to 500 nm both inclusive. A battery including an anode with an anode active material layer that includes anode active material particles made of an anode active material including at least one of silicon and tin as an element. An oxide-containing film including an oxide of at least one kind selected from ...more ...less
11
US10205193B2
Publication/Patent Number: US10205193B2
Publication date: 2019-02-12
Application number: 15/549,867
Filing date: 2015-12-04
Abstract: A lead acid battery including: a positive electrode plate including a positive electrode grid and a positive electrode active material; a negative electrode plate including a negative electrode grid and a negative electrode active material; an electrode plate group including the positive electrode plate, the negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate; a battery container including a plurality of cell chambers each accommodating the electrode plate group and an electrolyte; and a lid sealing an opening of the battery container. A ratio P/N of mass P of the positive electrode active material to mass N of the negative electrode active material is 1.25 or more and 1.65 or less. The negative electrode grid contains bismuth in an amount of 1 ppm or more and 300 ppm or less. A lead acid battery including: a positive electrode plate including a positive electrode grid and a positive electrode active material; a negative electrode plate including a negative electrode grid and a negative electrode active material; an electrode plate group including the ...more ...less
12
US10193160B2
Publication/Patent Number: US10193160B2
Publication date: 2019-01-29
Application number: 14/428,074
Filing date: 2013-09-06
Abstract: A hyper-branched polymer dispersant represented by, for example, formula (I) has high adhesion properties to a current collector substrate and therefore enables the formation of an electrically conductive bonding layer having high carbon nanotube concentration. When a composite current collector for an energy storage device electrode which is equipped with the electrically conductive bonding layer is used, it becomes possible to produce an energy storage device from which an electrical current can be extracted without causing the decrease in a voltage particularly in use applications that require a large electrical current instantaneously, such as electrical automotive applications, and which has a long cycle life. A hyper-branched polymer dispersant represented by, for example, formula (I) has high adhesion properties to a current collector substrate and therefore enables the formation of an electrically conductive bonding layer having high carbon nanotube concentration. When a composite ...more ...less
13
US10186699B2
Publication/Patent Number: US10186699B2
Publication date: 2019-01-22
Application number: 15/500,975
Filing date: 2015-08-12
Inventor: Sasaki, Tomokazu  
Abstract: Disclosed is a laminate for non-aqueous secondary battery which includes a functional layer that has superior transferability and may exert high function. The disclosed laminate includes a releasable substrate having a water contact angle of 70° or more, and a functional layer on the releasable substrate. The functional layer includes organic particles and a binder. The organic particles each have a core-shell structure having a core and a shell that partially covers an outer surface of the core. The core is made of polymer having a degree of swelling in electrolysis solution of 5 times or more to 30 times or less. The shell is made of polymer having a degree of swelling in electrolysis solution of greater than 1 time to 4 times or less. Disclosed is a laminate for non-aqueous secondary battery which includes a functional layer that has superior transferability and may exert high function. The disclosed laminate includes a releasable substrate having a water contact angle of 70° or more, and a functional ...more ...less
14
US10305138B2
Publication/Patent Number: US10305138B2
Publication date: 2019-05-28
Application number: 14/628,583
Filing date: 2015-02-23
Assignee: LG Chem, Ltd.
Abstract: Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising heat-absorbing inorganic particles and a binder polymer, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of antimony-containing compounds, metal hydroxides, guanidine-based compounds, born-containing compounds and zinc tartrate compounds. A separator using the heat-absorbing inorganic particles as a component for forming or coating the separator, and an electrochemical device including the electrode and/or the separator are also disclosed. The separator using the heat-absorbing inorganic particles as a component for forming or coating the separator can ensure excellent thermal safety and minimizes degradation of the quality of a battery. Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising heat-absorbing inorganic particles and a binder polymer, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of ...more ...less
15
US10312520B2
Publication/Patent Number: US10312520B2
Publication date: 2019-06-04
Application number: 15/079,994
Filing date: 2016-03-24
Abstract: According to the invention, a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte is provided. The negative electrode contains a negative electrode active material, a conductive material, and a binder. When an average particle size of the conductive material is referred to as De, and an average particle size of the binder is referred to as Db, Db≤De is satisfied. In other words, the average particle size Db of the binder is equal to or smaller than the average particle size De of the conductive material. According to the invention, a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte is provided. The negative electrode contains a negative electrode active material, a conductive material, and a binder ...more ...less
16
US10312523B2
Publication/Patent Number: US10312523B2
Publication date: 2019-06-04
Application number: 15/437,978
Filing date: 2017-02-21
Abstract: A lithium ion secondary battery includes: a positive electrode including a positive electrode active material layer; a negative electrode; and an electrolyte. The positive electrode active material layer contains Lia(M)b(PO4)c (M=VO or V, 0.9≤a≤3.3, 0.9≤b≤2.2, 0.9≤c≤3.3) as a first positive electrode active material, and additionally contains a fluorine compound of 1 to 300 ppm in terms of fluorine with respect to a weight of the positive electrode active material layer. A lithium ion secondary battery includes: a positive electrode including a positive electrode active material layer; a negative electrode; and an electrolyte. The positive electrode active material layer contains Lia(M)b(PO4)c (M=VO or V, 0.9≤a≤3.3 ...more ...less
17
US10263248B2
Publication/Patent Number: US10263248B2
Publication date: 2019-04-16
Application number: 14/909,331
Filing date: 2015-06-19
Assignee: LG Chem, Ltd.
Abstract: The present invention relates to a lithium secondary battery including a negative electrode and a positive electrode, wherein the negative electrode includes a first negative electrode active material made of a carbonaceous material, and a second negative electrode active material having a lower initial charge/discharge efficiency than the first negative electrode active material, and the initial charge/discharge efficiency of the negative electrode is lower than the initial charge/discharge efficiency of the positive electrode. The present invention provides a lithium secondary battery capable of realizing high output by remarkably reducing the resistance at a low state-of-charge (SOC) level. The present invention relates to a lithium secondary battery including a negative electrode and a positive electrode, wherein the negative electrode includes a first negative electrode active material made of a carbonaceous material, and a second negative electrode active ...more ...less
18
US10276887B2
Publication/Patent Number: US10276887B2
Publication date: 2019-04-30
Application number: 15/102,958
Filing date: 2015-01-05
Assignee: LG Chem, Ltd.
Abstract: Disclosed herein is a battery cell having an electrode assembly including one or more unit cells mounted in a variable cell case in a state in which the electrode assembly is impregnated with an electrolyte, wherein at least one of the unit cells includes a flexible electrode that can be bent or curved, an electrode current collector of the flexible electrode includes a first surface, to which an electrode active material is applied, and a second surface, to which no electrode active material is applied, the second surface being opposite to the first surface, and the second surface is provided with a mesh for improving flexibility of the electrode. Disclosed herein is a battery cell having an electrode assembly including one or more unit cells mounted in a variable cell case in a state in which the electrode assembly is impregnated with an electrolyte, wherein at least one of the unit cells includes a flexible electrode ...more ...less
19
US10283758B2
Publication/Patent Number: US10283758B2
Publication date: 2019-05-07
Application number: 15/027,162
Filing date: 2014-10-01
Abstract: The present invention aims to maximize the advantageous physical properties of sulfur and provide a cathode mixture that can be suitably used in a cathode mixture layer of an all-solid-state lithium-sulfur battery having excellent charge/discharge capacity. The present invention also aims to provide an all-solid-state lithium-sulfur battery including a cathode mixture layer containing the cathode mixture. The present invention relates to a cathode mixture for use in a cathode mixture layer of an all-solid-state lithium-sulfur battery, the cathode mixture containing the following components (A) to (D): (A) sulfur and/or its discharge product; (B) elemental phosphorus and/or PxSy where x and y independently represent an integer that gives a stoichiometric ratio; (C) an ion-conductive material; and (D) a conductive material. The present invention aims to maximize the advantageous physical properties of sulfur and provide a cathode mixture that can be suitably used in a cathode mixture layer of an all-solid-state lithium-sulfur battery having excellent charge/discharge capacity. The present invention ...more ...less
20
US10211495B2
Publication/Patent Number: US10211495B2
Publication date: 2019-02-19
Application number: 15/319,286
Filing date: 2015-06-16
Abstract: Disclosed is a hybrid electrochemical cell with a first conductor having at least one portion that is both a first capacitor electrode and a first battery electrode. The hybrid electrochemical cell further includes a second conductor having at least one portion that is a second capacitor electrode and at least one other portion that is a second battery electrode. An electrolyte is in contact with both the first conductor and the second conductor. In some embodiments, the hybrid electrochemical cell further includes a separator between the first conductor and the second conductor to prevent physical contact between the first conductor and the second conductor, while facilitating ion transport between the first conductor and the second conductor. Disclosed is a hybrid electrochemical cell with a first conductor having at least one portion that is both a first capacitor electrode and a first battery electrode. The hybrid electrochemical cell further includes a second conductor having at least one portion that is a second ...more ...less