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1. WO2020005868 - LITHIUM-SELENIUM BATTERY CONTAINING AN ELECTRODE-PROTECTING LAYER AND METHOD OF IMPROVING CYCLE-LIFE

Publication Number WO/2020/005868
Publication Date 02.01.2020
International Application No. PCT/US2019/038881
International Filing Date 25.06.2019
IPC
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
134
Electrodes based on metals, Si or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
62
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
38
of elements or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
58
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139
Processes of manufacture
1395
of electrodes based on metals, Si or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
H01M 4/134 (2010.01)
H01M 4/62 (2006.01)
H01M 4/38 (2006.01)
H01M 4/58 (2010.01)
H01M 4/1395 (2010.01)
H01M 10/052 (2010.01)
CPC
H01M 10/052
H01M 10/058
H01M 10/4235
H01M 2300/0037
H01M 4/382
H01M 4/581
Applicants
  • NANOTEK INSTRUMENTS, INC. [US/US]; 1240 McCook Ave Dayton, Ohio 45405, US
Inventors
  • HE, Hui; US
  • ZHAMU, Aruna; US
  • JANG, Bor Z.; US
Agents
  • CROUCH, Robert G.; US
Priority Data
16/017,29425.06.2018US
16/114,95928.08.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LITHIUM-SELENIUM BATTERY CONTAINING AN ELECTRODE-PROTECTING LAYER AND METHOD OF IMPROVING CYCLE-LIFE
(FR) BATTERIE AU LITHIUM-SÉLÉNIUM CONTENANT UNE COUCHE DE PROTECTION D'ÉLECTRODE ET PROCÉDÉ D'AMÉLIORATION DE LA DURÉE DE VIE
Abstract
(EN)
Provided is a lithium-selenium battery, comprising a cathode, an anode, and a porous separator/electrolyte assembly, wherein the anode comprises an anode active layer containing lithium or lithium alloy as an anode active material, and the cathode comprises a cathode active layer comprising a selenium-containing material, wherein an anode-protecting layer is disposed between the anode active layer and the separator/electrolyte and/or a cathode-protecting layer is disposed between the cathode active layer and the separator/electrolyte; the protecting layer comprising from 0.01% to 40% by weight of a conductive reinforcement material and from 0.01% to 40% by weight of an electrochemically stable inorganic filler dispersed in a sulfonated elastomeric matrix material and having a thickness from 1 nm to 100 µm, a fully recoverable tensile strain from 2% to 500%, a lithium ion conductivity from 10-7 S/cm to 5 x 10-2 S/cm, and an electrical conductivity from 10-7 S/cm to100 S/cm.
(FR)
L'invention concerne une batterie au lithium-sélénium, comprenant une cathode, une anode et un ensemble séparateur/électrolyte poreux, l'anode comprenant une couche active d'anode contenant du lithium ou un alliage de lithium en tant que matériau actif d'anode, et la cathode comprenant une couche active de cathode comprenant un matériau contenant du sélénium, une couche de protection d'anode étant disposée entre la couche active d'anode et le séparateur/électrolyte et/ou une couche de protection de cathode étant disposée entre la couche active de cathode et le séparateur/électrolyte ; la couche de protection comprenant de 0,01 % à 40 % en poids d'un matériau de renforcement conducteur et de 0,01 % à 40 % en poids d'une charge inorganique électrochimiquement stable dispersée dans un matériau de matrice élastomère sulfoné et ayant une épaisseur de 1 nm à 100 µm, une contrainte de traction complètement récupérable de 2 % à 500 %, une conductivité des ions lithium de 10-7 S/cm à 5 x 10-2 S/cm, et une conductivité électrique de 10-7 S/cm à 100 S/cm.
Latest bibliographic data on file with the International Bureau