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
US10199641B2
Publication/Patent Number: US10199641B2
Publication date: 2019-02-05
Application number: 15/517,641
Filing date: 2015-12-21
Inventor: Hong, Yeon-suk  
Assignee: LG Chem, Ltd.
Abstract: Provided is a mixed positive electrode active material comprising a large-grain positive electrode active material with an average diameter of 10 μm or greater and a small-grain positive electrode active material with an average diameter of 5 μm or smaller, in which the large-grain positive electrode active material and the small-grain positive electrode active material are coated with different materials between lithium triborate and metal oxide, respectively. Provided is a mixed positive electrode active material comprising a large-grain positive electrode active material with an average diameter of 10 μm or greater and a small-grain positive electrode active material with an average diameter of 5 μm or smaller, in which ...more ...less
2
US10199644B2
Publication/Patent Number: US10199644B2
Publication date: 2019-02-05
Application number: 14/982,516
Filing date: 2015-12-29
Abstract: Disclosed is a lithium secondary battery, including a cathode, an anode and a non-aqueous electrolyte, wherein the cathode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a concentration gradient region between a core part and a surface part thereof, and the anode includes hard carbon having an average lattice distance (d002) in the range of 3.6 to 3.8 Å and graphite having-an average lattice distance (d002) in the range of 3.356 to 3.360 Å, such that output and high-temperature storage properties may be improved. Disclosed is a lithium secondary battery, including a cathode, an anode and a non-aqueous electrolyte, wherein the cathode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a concentration gradient region between a core part ...more ...less
3
US10199647B2
Publication/Patent Number: US10199647B2
Publication date: 2019-02-05
Application number: 15/125,702
Filing date: 2015-03-19
Abstract: The present invention concerns specific new compounds of formula Li(2−x)Na(x)MO(2−y/2)F(1+y) (where 0≤x≤0.2 and −0.6≤y≤0,8 and M is a transition metal), cathode material comprising the new compounds, batteries and lithium-cells comprising said new compound or cathode material, a process for the production of the new compound and their use. The present invention concerns specific new compounds of formula Li(2−x)Na(x)MO(2−y/2)F(1+y) (where 0≤x≤0.2 and −0.6≤y≤0,8 and M is a transition metal), cathode material comprising the new compounds, batteries and lithium-cells ...more ...less
4
US10199659B2
Publication/Patent Number: US10199659B2
Publication date: 2019-02-05
Application number: 15/022,460
Filing date: 2013-11-21
Abstract: A battery cell housing and control system enables the use of liquid battery power systems in various applications, including downhole environments. The cell housing includes a plurality of conductive terminals spaced there-around to provide conductivity between the electrochemical solution and the load. Sensors provide orientation data to the control system to thereby determine which terminals should be activated to provide power to a load. A battery cell housing and control system enables the use of liquid battery power systems in various applications, including downhole environments. The cell housing includes a plurality of conductive terminals spaced there-around to provide conductivity between the ...more ...less
5
US10193136B2
Publication/Patent Number: US10193136B2
Publication date: 2019-01-29
Application number: 15/097,682
Filing date: 2016-04-13
Abstract: Provided is a nonaqueous electrolyte secondary battery that includes a laminate film exterior container housing an electrode body and an electrolyte solution. In the nonaqueous electrolyte secondary battery, the electrode body includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive electrode active material layer formed on a positive electrode current collector. The negative electrode includes a negative electrode active material layer formed on a negative electrode current collector. The positive electrode active material layer includes secondary particles of a lithium nickel cobalt manganese composite oxide. The secondary particle includes a group of primary particles of a lithium nickel cobalt manganese composite oxide with a layered crystal structure. The primary particle has a cross-sectional area of 1.50 μm2 or less. The layered crystal structure has a lattice constant “c” of 14.240 Å or less. Provided is a nonaqueous electrolyte secondary battery that includes a laminate film exterior container housing an electrode body and an electrolyte solution. In the nonaqueous electrolyte secondary battery, the electrode body includes a positive electrode, a negative electrode ...more ...less
6
US10193142B2
Publication/Patent Number: US10193142B2
Publication date: 2019-01-29
Application number: 14/625,372
Filing date: 2015-02-18
Inventor: Rojeski, Ronald A.  
Abstract: An energy storage device includes a nano-structured cathode. The cathode includes a conductive substrate, an underframe and an active layer. The underframe includes structures such as nano-filaments and/or aerogel. The active layer optionally includes a catalyst disposed within the active layer, the catalyst being configured to catalyze the dissociation of cathode active material. An energy storage device includes a nano-structured cathode. The cathode includes a conductive substrate, an underframe and an active layer. The underframe includes structures such as nano-filaments and/or aerogel. The active layer optionally includes a catalyst disposed within ...more ...less
7
US10193155B2
Publication/Patent Number: US10193155B2
Publication date: 2019-01-29
Application number: 14/643,462
Filing date: 2015-03-10
Abstract: A cathode material which does not easily deteriorate when used in batteries, a method for producing cathode materials, a cathode, and a lithium ion battery are provided. A cathode material including a cathode active material, in which the cathode active material is expressed by Li1+xAyDzPO4 (here, A represents one or more metal elements selected from the group consisting of Co, Mn, Ni, Fe, Cu, and Cr, D represents one or more metal elements selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, Y, and rare earth elements, 0<x<1, 0<y<1, 0≤z<1.5, and 0.9<y+z≤1), and, in thermogravimetric analysis in an inert gas atmosphere, when a temperature is increased in a temperature range from 100° C. to 300° C. at a temperature-increase rate of 10° C./minute, a weight loss ratio in the temperature range is 0.3% by weight or less. A cathode material which does not easily deteriorate when used in batteries, a method for producing cathode materials, a cathode, and a lithium ion battery are provided. A cathode material including a cathode active material, in which the cathode active material is expressed by ...more ...less
8
US10193157B2
Publication/Patent Number: US10193157B2
Publication date: 2019-01-29
Application number: 14/897,554
Filing date: 2014-06-11
Abstract: A negative electrode for a lithium ion secondary battery, which has high energy density and which can suppress a crease (form change) of a negative electrode active material layer and a negative electrode current collector caused by the expansion and contraction occurring along with the quick charging and discharging and also suppress the falloff of the negative electrode active material layer after the quick charging and discharging cycle, and a lithium ion secondary battery using the negative electrode. The negative electrode for a lithium ion secondary battery and the lithium ion secondary battery include: a negative electrode active material including 5% or more of silicon or silicon oxide; a binder that is polyacrylate whose carboxylic groups at terminals of side chains of polyacrylic acid are cross-linked with magnesium or alkaline earth metal; and a negative electrode current collector. A negative electrode for a lithium ion secondary battery, which has high energy density and which can suppress a crease (form change) of a negative electrode active material layer and a negative electrode current collector caused by the expansion and contraction occurring along ...more ...less
9
US10170746B2
Publication/Patent Number: US10170746B2
Publication date: 2019-01-01
Application number: 13/653,493
Filing date: 2012-10-17
Abstract: A battery electrode in accordance with various embodiments may include: a substrate including a surface configured to face an ion-carrying electrolyte; and a first diffusivity changing region at a first portion of the surface, wherein the first diffusivity changing region is configured to change diffusion of ions carried by the electrolyte into the substrate, and wherein a second portion of the surface is free from the first diffusivity changing region. A battery electrode in accordance with various embodiments may include: a substrate including a surface configured to face an ion-carrying electrolyte; and a first diffusivity changing region at a first portion of the surface, wherein the first diffusivity changing region is ...more ...less
10
US10170752B2
Publication/Patent Number: US10170752B2
Publication date: 2019-01-01
Application number: 14/407,727
Filing date: 2013-06-12
Abstract: A method for producing an amorphous carbon particle includes the steps of: obtaining a first crosslinked product by admixing mesophase particles with an amorphous carbon precursor and thereafter subjecting the mixture to a crosslinking treatment, or obtaining a second crosslinked product by crosslinking the amorphous carbon precursor and thereafter admixing the mesophase particles with the crosslinked precursor; and subjecting the first or second crosslinked product to an infusibilization treatment and thereafter firing the product to produce amorphous carbon particles including the mesophase particles within the particles. A method for producing an amorphous carbon particle includes the steps of: obtaining a first crosslinked product by admixing mesophase particles with an amorphous carbon precursor and thereafter subjecting the mixture to a crosslinking treatment, or obtaining a second ...more ...less
11
US10170788B2
Publication/Patent Number: US10170788B2
Publication date: 2019-01-01
Application number: 15/812,257
Filing date: 2017-11-14
Abstract: Examples are disclosed herein that relate to curved batteries. One example provides a battery comprising an anode arranged on an anode substrate, a cathode arranged on a cathode substrate, the anode substrate being curved at a first curvature and the cathode substrate being curved at a second curvature, and a separator between the anode and the cathode. A thickness of the anode substrate and a thickness of the cathode substrate are determined based on the curvature of the respective substrate, such that the one of the anode substrate and the cathode substrate with a larger curvature has a larger thickness. Examples are disclosed herein that relate to curved batteries. One example provides a battery comprising an anode arranged on an anode substrate, a cathode arranged on a cathode substrate, the anode substrate being curved at a first curvature and the cathode substrate being ...more ...less
12
US10205164B2
Publication/Patent Number: US10205164B2
Publication date: 2019-02-12
Application number: 14/421,948
Filing date: 2014-12-02
Abstract: Provided are a porous silicon-based anode active material including porous SiOx particles (0≤x<2) having surfaces coated with an oxide layer, a method of preparing the same, and a lithium secondary battery including the porous silicon-based anode active material. Since the anode active material includes an oxide layer formed on the porous SiOx particles (0≤x<2), a reactivity between the anode active material and an electrolyte solution may be reduced and, as a result, an electrical short circuit in an electrode may be minimized. Also, since a plurality of pores is included in surfaces or the surfaces and inside of the SiOx particles, a thickness change rate of the electrode generated during charge and discharge of a secondary battery may be reduced and lifetime characteristics may be improved. Provided are a porous silicon-based anode active material including porous SiOx particles (0≤x<2) having surfaces coated with an oxide layer, a method of preparing the same, and a lithium secondary battery including the porous silicon-based anode active material ...more ...less
13
US10205169B2
Publication/Patent Number: US10205169B2
Publication date: 2019-02-12
Application number: 15/032,396
Filing date: 2015-09-23
Assignee: LG Chem, Ltd.
Abstract: A negative active material for rechargeable lithium secondary batteries, a method of preparing the same, and a rechargeable lithium secondary battery including the same are disclosed. The negative active material includes a core including a lithium titanium oxide of Formula 1, and a coating layer positioned on a surface of the core and including an acid anhydride physisorbed onto the core, and thus can be useful in inhibiting battery side reactions and gas generation and improving battery performance since moisture formed during a redox reaction is effectively absorbed into a surface of the negative active material. LixTiyO4  [Formula 1] In Formula 1, x and y are as defined in the detailed description. A negative active material for rechargeable lithium secondary batteries, a method of preparing the same, and a rechargeable lithium secondary battery including the same are disclosed. The negative active material includes a core including a lithium titanium oxide of Formula 1 ...more ...less
14
US10205170B1
Publication/Patent Number: US10205170B1
Publication date: 2019-02-12
Application number: 15/782,494
Filing date: 2017-12-04
Abstract: Electrodeposited copper foils having adequate puncture strength to withstand both pressure application during consolidation with negative electrode active materials during manufacture, as well as expansion/contraction during repeated charge/discharging cycles when used in a rechargeable secondary battery are described. These copper foils find specific utility as current collectors in rechargeable secondary batteries, particularly in lithium secondary battery with high capacity. Methods of making the copper foils, methods of producing negative electrode for use in lithium secondary battery and lithium secondary battery of high capacity are also described. Electrodeposited copper foils having adequate puncture strength to withstand both pressure application during consolidation with negative electrode active materials during manufacture, as well as expansion/contraction during repeated charge/discharging cycles when used in a ...more ...less
15
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
16
US10211449B2
Publication/Patent Number: US10211449B2
Publication date: 2019-02-19
Application number: 15/313,510
Filing date: 2015-05-20
Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery, we have successfully demonstrated the first synthesis of a scalable carbon-coated silicon nanofiber paper for next generation binderless free-standing electrodes for Li-ion batteries that will significantly increase total capacity at the cell level. The excellent electrochemical performance coupled with the high degree of scalability rriake this material an idea candidate for next-generation anodes for electric vehicle applications. C-coated SiNF paper electrodes offer a highly feasible alternative to the traditional slurry-based approach to Li-ion battery electrodes through the elimination of carbon black, polymer binders, and metallic current collectors. A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery, we have successfully demonstrated the first synthesis of a scalable carbon-coated ...more ...less
17
US10211451B2
Publication/Patent Number: US10211451B2
Publication date: 2019-02-19
Application number: 14/759,677
Filing date: 2014-01-10
Abstract: The present invention relates to a negative electrode for a lithium ion secondary battery, the negative electrode containing a negative electrode active material containing a first carbon and a second carbon, in which the first carbon is spherical graphite, the second carbon is massive graphite, and the sulfur concentration in the first carbon (Sx) and the sulfur concentration in the second carbon (Sy) are each independently 0 ppm or more and 300 ppm or less. The present invention relates to a negative electrode for a lithium ion secondary battery, the negative electrode containing a negative electrode active material containing a first carbon and a second carbon, in which the first carbon is spherical graphite, the second carbon is ...more ...less
18
US10211464B2
Publication/Patent Number: US10211464B2
Publication date: 2019-02-19
Application number: 15/138,800
Filing date: 2016-04-26
Abstract: The present invention relates to an electrochemical cell characterized in that it comprises at least a positive electrode which comprises manganese physically separated from at least a negative electrode which comprises an aluminum alloy, and wherein said positive and negative electrodes are electrically connected through a neutral pH electrolyte. Further, the present invention relates to the use of the electrochemical cell, preferably as a button battery in hearing aids. The present invention relates to an electrochemical cell characterized in that it comprises at least a positive electrode which comprises manganese physically separated from at least a negative electrode which comprises an aluminum alloy, and wherein said positive and negative ...more ...less
19
US10211494B1
Publication/Patent Number: US10211494B1
Publication date: 2019-02-19
Application number: 15/977,102
Filing date: 2018-05-11
Inventor: Tsenter, Boris  
Abstract: Disclosed herein are secondary electrochemical cells using lithium and hydrogen elements as active materials. In the process of charging hydrogen delivers electron to lithium, Li+-ion simultaneously cross Li+-ion conductive separator and deposits as metallic lithium or in matrix intercalated lithium. During discharge, Li delivers electron to proton of catholyte and moves as Li+-ion across Li+-ion conductive separator. Reversible fuel cells, water electrolyzers, metal hydrides or lithium itself can be used as sources of hydrogen. Disclosed herein are secondary electrochemical cells using lithium and hydrogen elements as active materials. In the process of charging hydrogen delivers electron to lithium, Li+-ion simultaneously cross Li+-ion conductive separator and deposits as metallic lithium or in matrix ...more ...less
20
US20190051946A1
Publication/Patent Number: US20190051946A1
Publication date: 2019-02-14
Application number: 16/161,496
Filing date: 2018-10-16
Assignee: Daramic, LLC
Abstract: New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate crystal formation while decreasing the detrimental consequences of excessive gas evolution into the negative electrode itself. In one embodiment, a method of enhancing the lead-acid energy storage performance of a lead-acid battery may include delivering carbon to the negative active material surface of the battery separator where the carbon may effectively enhance charge acceptance and improve life cycle performance of a lead-acid battery. New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate ...more ...less