Title: Electrospinning for integrated separator for lithium-ion batteries

Abstract

Embodiments of the present invention relate generally to lithium-ion batteries, and more specifically, to batteries having integrated separators and methods of fabricating such batteries. In one embodiment, a lithium-ion battery having an electrode structure is provided. The lithium-ion battery comprises an anode stack, a cathode stack, and a porous electrospun polymer separator comprising a nano-fiber backbone structure. The anode stack comprises an anodic current collector and an anode structure formed over a first surface of the anodic current collector. The cathode stack comprises a cathodic current collector and a cathode structure formed over a first surface of the cathodic current collector. The porous electrospun polymer separator is positioned between the anode structure and the cathode structure.

Inventors:

Orilall, Mahendra C.; Talwar, Raman; Brown, Karl M.; Yang, Lu; Bolandi, Hooman; Pebenito, Victor; Wang, Connie P.; Bachrach, Robert Z.

Issue Date:

Tue Jun 23 00:00:00 EDT 2015

Research Org.:

Applied Materials, Inc., Santa Clara, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1531807

Patent Number(s):

9065122

Application Number:

13/224,709

Assignee:

Applied Materials, Inc. (Santa Clara, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS

D - TEXTILES D01 - NATURAL OR MAN-MADE THREADS OR FIBRES D01D - MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS

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B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS

B05B5/0255 - {spraying and depositing by electrostatic forces only}

D - TEXTILES D01 - NATURAL OR MAN-MADE THREADS OR FIBRES D01D - MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS

D01D5/0084 - {Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes
H01M2220/10 - Batteries in stationary systems, e.g. emergency power source in plant
H01M2220/20 - Batteries in motive systems, e.g. vehicle, ship, plane
H01M2220/30 - Batteries in portable systems, e.g. mobile phone, laptop
H01M4/485 - of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M4/505 - of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M4/525 - of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M4/5815 - {Sulfides}
H01M4/5825 - {Oxygenated metallic slats or polyanionic structures, e.g. borates, phosphates, silicates, olivines}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E60/10 - Energy storage

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P70/50 - Manufacturing or production processes characterised by the final manufactured product

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DOE Contract Number:  

AR0000063

Resource Type:

Patent

Resource Relation:

Patent File Date: 2011-09-02

Country of Publication:

United States

Language:

English

Subject:

25 ENERGY STORAGE; 42 ENGINEERING