WO2008021961A2 - High performance anode material for lithium-ion battery - Google Patents

High performance anode material for lithium-ion battery Download PDF

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Publication number
WO2008021961A2
WO2008021961A2 PCT/US2007/075591 US2007075591W WO2008021961A2 WO 2008021961 A2 WO2008021961 A2 WO 2008021961A2 US 2007075591 W US2007075591 W US 2007075591W WO 2008021961 A2 WO2008021961 A2 WO 2008021961A2
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WO
WIPO (PCT)
Prior art keywords
lithium
linear dimension
mean linear
matrix
alloying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2007/075591
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English (en)
French (fr)
Other versions
WO2008021961A3 (en
WO2008021961A8 (en
Inventor
Pu Zhang
Junqing Ma
Suresh Mani
Monique Richard
Shoji Yokoishi
Brian Glomski
Liya Wang
Shih-Chieh Yin
Kimber L. Stamm
Chris Silkowski
John Miller
Wen Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Toyota Motor Engineering and Manufacturing North America Inc
TJ Technologies Inc
Original Assignee
Toyota Motor Corp
Toyota Motor Engineering and Manufacturing North America Inc
TJ Technologies Inc
Toyota Engineering and Manufacturing North America Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp, Toyota Motor Engineering and Manufacturing North America Inc, TJ Technologies Inc, Toyota Engineering and Manufacturing North America Inc filed Critical Toyota Motor Corp
Priority to CN2007800329271A priority Critical patent/CN101601162B/zh
Priority to KR1020097004785A priority patent/KR101152831B1/ko
Priority to JP2009523999A priority patent/JP5394924B2/ja
Publication of WO2008021961A2 publication Critical patent/WO2008021961A2/en
Publication of WO2008021961A8 publication Critical patent/WO2008021961A8/en
Publication of WO2008021961A3 publication Critical patent/WO2008021961A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/134—Electrodes based on metals, Si or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/386—Silicon or alloys based on silicon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/387—Tin or alloys based on tin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present inventions relate to a lithium-ion battery, in particular to a high performance anode material for a lithium-ion battery.
  • a poor cycle life is defined as poor retention of battery energy as a function of the number of charge- discharge cycles.
  • researchers have taken two approaches to solving these problems. First, by forming an intermetallic compound of tin and at least one other metal, and second, by adding a non-electrochemically active material to the anode composite.
  • An anode material with lithium- alloying particles contained within a porous support matrix is provided.
  • the lithium-alloying particles are preferably nanoparticles.
  • the porous support matrix preferably has a porosity of between 5 and 80% afforded by porosity channels and expansion accommodation pores that contain at least one lithium-alloying particle within. More preferably the support matrix has a porosity of between 10 and 50%.
  • the lithium- alloying particles preferably have a mean linear dimension of between 5 and 500 nanometers, and more preferably have a mean linear dimension of between 5 and 50 nanometers.
  • the expansion accommodation pores preferably have a mean linear dimension of between 10 nanometers and 2.5 microns, and more preferably have a mean linear dimension of between 10 and 250 nanometers. In this manner, the expansion accommodation pores accommodate the expansion of lithium- alloying particles when said particles are alloyed with lithium and expand.
  • the porous support matrix is preferably electrically conductive and is made from an organic polymer, an inorganic ceramic or a hybrid mixture of organic polymer and inorganic ceramic.
  • the organic polymer support matrix and can be made from a rod-coil polymer, a hyperbranched polymer or combination thereof.
  • An inorganic ceramic support matrix can be made from a group IV-VI transition metal compound, with the compound being a nitride, carbide, oxide or combination thereof.
  • Figure 1 shows a schematic representation of a high performance anode material for a lithium-ion battery in a discharged state
  • Figure 2 shows a schematic representation of a high performance anode material for a lithium-ion battery in an charged state
  • Figure 3 shows an SEM image of a porous polymer demonstrating that the pores are located inside and outside of the polymer; and Figure 4 shows a Sn anode capacity comparison indicating Sn/PANI structural advantage over others.
  • a high performance anode material 100 in a charged state consists of one or more lithium-alloying particles 110 contained within one or more expansion accommodation pores 140, said particles and pores surrounded by a support matrix 120 with porosity channels 130 contained therein ( Figure 1).
  • the lithium- alloying particles 110 are nanosized particles, also known as nanoparticles by those skilled in the art.
  • nanosized particles or nanoparticles are microscopic particles with diameters measured in nanometers (nm) and with at least one measurement of the diameter less than or equal to 999 nanometers.
  • the lithium-alloying particles 110 can be any metal or alloy that alloys with lithium, illustratively including tin, silicon, germanium, lead, antimony, aluminum, tin alloys and silicon alloys.
  • tin alloys include multicomponent (binary, ternary, etc.) alloy systems of tin and silicon alloys include multicomponent (binary, ternary, etc.) alloy systems of silicon.
  • At least one lithium- alloying particle 110 contained within an expansion accommodation pore 140, said particle and pore surrounded by the support matrix 120 with porosity channels 130 contained therein, is referred to as a composite particle 180.
  • lithium- alloying particles 110 shown in Figure 1 are representative of spherical particles, in the alternative high performance anode material 100 can be comprised of lithium- alloying particles 110 of any non-spherical or polyhedron shape, illustratively including spheroids and polyhedrons.
  • the expansion accommodation pores 140 also need not be spherical.
  • the lithium- alloying particles 110 shown in Figure 1 represent non-lithiated particles.
  • Non-lithiated particles, also known as unlithiated particles are defined in the present inventions as lithium-alloying particles 110 that have not yet alloyed with lithium.
  • lithium- alloying particles 110 expand two to five times their size when in the unlithiated state. Volume expansion of spherical lithium-alloying particles 110 is proportional to the radius of the particle cubed. Thus nanosized primary lithium-alloying particles 110 minimize overall volume expansion.
  • primary particles refers to individual nanosized lithium-alloying particles 110.
  • secondary lithium-alloying particles may be enclosed within the support matrix 120 and contained within expansion accommodation pores 140, wherein “secondary particles” refers to an agglomeration of primary particles 110.
  • lithium- alloying particles 110 can include primary lithium- alloying particles 110 and/or secondary lithium- alloying particles.
  • the lithium- alloying particles 110 are nano-dispersed within the support matrix 120.
  • the composite particle 180 preferably has lithium- alloying particles 110 with a mean linear dimension between 1 and 999 nm and expansion accommodation pores 140 with a mean linear dimension between 2 nm and 5 microns ( ⁇ m).
  • mean linear dimension refers to an average of three orthogonal axes, for example X, Y and Z axes, representing three dimensions of the particle or pore in each respective direction.
  • a composite particle 180 has lithium-alloying particles 110 with a mean linear dimension between 5 and 500 nm and expansion accommodation pores 140 with a mean linear dimension between 10 nm and 2.5 ⁇ m.
  • the lithium- alloying particles 110 have a mean linear dimension of between 5 and 50 nm and expansion accommodation pores 140 with a mean linear dimension of between 10 and 250 nm. And even yet more preferred, the lithium- alloying particles 110 have a mean linear dimension of between 5 and 20 nm and the expansion accommodation pores 140 have a mean linear dimension of between 10 and 100 nm.
  • the mean linear dimension of the expansion accommodations pores 140 is preferably 2 to 5 times the mean linear dimension of the lithium- alloying particles 110. More preferably, the mean linear dimension of the expansion accommodations pores 140 is preferably 2 to 4 times the mean linear dimension of the lithium- alloying particles 110. Most preferably, The mean linear dimension of the expansion accommodations pores 140 is preferably 2 to 3 times the mean linear dimension of the lithium-alloying particles 110.
  • the porosity channels 130 within matrix 120 allow for the diffusion of lithium ions to pass therethrough.
  • the expansion accommodation pores 140 accommodate volume expansion of the lithium-alloying particles 110 during charging when the lithium- alloying particles 110 alloy with lithium to form lithium- alloyed particles 112, also known as lithiated particles ( Figure 2).
  • the support matrix 120, with porosity channels 130 contained therein has some degree of electronic conductivity and can accommodate a relatively small amount of the volume expansion of lithium- alloying particles 110 during charging.
  • the present inventions described thus far illustrates a composite particle 180 initially manufactured with lithium- alloying particles 110 contained within expansion accommodation pores 140 (Figure 1)
  • the composite particle 180 can be initially manufactured with lithiated particles 112 contained within said pores 140 ( Figure 2).
  • the unlithiated lithium-alloying particles 110 and/or the lithiated lithium-alloying particles 112 can be bound within the support matrix 120 by encapsulation, entanglement, chemical bonding and any combination thereof.
  • the support matrix 120 can be bound within the support matrix 120 by encapsulation, entanglement, chemical bonding and any combination thereof.
  • the support matrix 120 is ceramic, for example vanadium carbide.
  • the support matrix 120 made from ceramic is highly porous, preferably with a void space of between 5 and 80% afforded by porosity channels 130 and expansion accommodation pores 140 contained therein. More preferably the void space is between 10 and 50%.
  • the rigidity and electronic conductivity of the matrix 120 made from ceramic are adjusted by altering the process parameters and/or the chemical composition of the matrix.
  • the electronic conductivity, ionic conductivity, electrochemical stability and thermal stability are adjusted by altering the process parameters and/or the chemical composition of the matrix.
  • the support matrix 120 made from ceramic is comprised from at least one group IV-VI transition metal compound. The compound is selected from the group consisting of nitrides, carbides, oxides and combinations thereof.
  • the support matrix 120 of the composite particle 180 is polymeric.
  • the polymer framework is preferably highly porous, has a void space of greater than 50% afforded by porosity channels 130 and expansion accommodation pores 140 contained therein, and has no detrimental chemical or electrical reactions with particles 110 and/or particles 112.
  • the pores 140 of the matrix 120 made from polymer accommodate the expansion and contraction of the lithium-alloying particles when alloyed and de-alloyed with lithium, respectively.
  • the porosity channels 130 allow lithium ions within an electrolyte to freely penetrate and in combination with matrix 120 can accommodate a relatively small amount of expansion of the lithium- alloying particles 110 alloying with lithium.
  • the matrix 120 can include conductivity or performance enhancers, non-electroactive expansion buffer elements, electroactive expansion buffering elements, binding elements, adhesion promoters and any combination thereof.
  • electroactive elements can be added, illustratively including carbon-base materials, metals, alloys, metal nitrides, metal carbides alloy nitrides, alloy carbides and combinations thereof.
  • the matrix 120 made of polymer is not ionic conductive, additions of lithium-ion conductive polymers can be added.
  • Non-electroactive and/or electroactive expansion buffer elements can be added to enhance the capability of matrix 120 to buffer or accommodate the expansion and contraction of the lithium- alloying particles 110 when alloyed and de-alloyed with lithium, respectively.
  • the matrix 120 made of polymer can contain binding elements and adhesion promoters, illustratively including polyvinylidene difluoride, vinylidene difluoride: hexafluoropropylene copolymer; EPDM; and SBR:CMC.
  • the matrix 120 made of polymer can also take the form of rod/coil polymers, hyperbranched polymers, UV cross-linked polymers, heat cross-linked polymers and combinations thereof.
  • lithium-alloying halides illustratively including SnCl 2
  • SnCl 2 can be incorporated within the matrix 120 and subsequently reduced to elemental particles at relatively low temperatures, for example room temperature.
  • the production of lithium- alloying particles 110 using this method can afford lithium- alloying particles 110 with a mean linear dimension between 5 and 100 nanometers.
  • the lithium- alloying particles can be incorporated within the matrix 120 by any physical, chemical or physiochemical method using a single or multi-step procedure.
  • the physical method can be comprised of ball milling or other physically mixing technologies.
  • the chemical method can be comprised of chemical reactions under a controlled temperature program, controlled atmospheres and combinations thereof.
  • the physiochemical method can be comprised of chemical vapor deposition (CVD) processes. In the alternative a combination of the chemical, physical and physiochemical methods may be used.
  • the matrix 120 may be formed independently of particles 110 or particles 112, or synthesized in situ with particles 110 or particles 112.
  • a plurality of composite particles 180 are bound together within an electrode matrix using methods and processes known to those skilled in the art.
  • the composite particles 180 can be encapsulated within the electrode matrix, entangled within the electrode matrix, chemically bonded with the electrode matrix and any combination thereof. In this manner the high performance anode material 100 of the present inventions affords an improved rechargeable lithium battery.
  • the battery using the above-described high performance anode material may or may not use an electrolyte such as salts and/or solvents.
  • an electrolyte such as salts and/or solvents.
  • a typical synthetic procedure for UV polymers includes Ig of PClOOO, 0.5g of PC2003, 0.2g Decahydronaphthalene (porogen), 2g nitro-methane (solvent), and 0.02g photo-initiator loaded into a tall-form quartz beaker and mechanically stirred vigorously for 30 minutes in the absence of light.
  • the mixture is then sonicated using a VCX 750 Vibra-cell ultrasonicator for 20 minutes. With continued stirring, the mixture is placed 10 cm from a UV lamp in a UV box with UV irradiation continued for 1-10 minutes. The solid content is then filtered out and washed using de-ionized water. Finally, the UV polymer is dried in an oven at 80 0 C under vacuum for 24 hours. The resulting structure, demonstrating pores inside and outside the UV polymer, is shown in Figure 3.
  • FIG. 4 A comparison of nanoparticles of Sn versus an unoptimized configuration of the Sn/polymer matrix material is shown in Figure 4.
  • the unoptimized configuration of the Sn/polymer matrix material shows good cycle stability.
  • Optimization of the Sn/polymer matrix material could include: 1) refining the polyme ⁇ Sn ratio to improve capacity, while retaining good cycle life; and 2) optimizing synthesis conditions for the purpose of obtaining uniform pore size, etc.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)
PCT/US2007/075591 2006-08-09 2007-08-09 High performance anode material for lithium-ion battery Ceased WO2008021961A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800329271A CN101601162B (zh) 2006-08-09 2007-08-09 用于锂离子电池的高性能阳极材料
KR1020097004785A KR101152831B1 (ko) 2006-08-09 2007-08-09 리튬-이온 배터리용 고성능 애노드 물질
JP2009523999A JP5394924B2 (ja) 2006-08-09 2007-08-09 リチウムイオン電池用高性能アノード材料

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/463,394 US7722991B2 (en) 2006-08-09 2006-08-09 High performance anode material for lithium-ion battery
US11/463,394 2006-08-09

Publications (3)

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WO2008021961A2 true WO2008021961A2 (en) 2008-02-21
WO2008021961A8 WO2008021961A8 (en) 2008-10-16
WO2008021961A3 WO2008021961A3 (en) 2009-01-15

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US (1) US7722991B2 (https=)
JP (1) JP5394924B2 (https=)
KR (2) KR20110112358A (https=)
CN (1) CN101601162B (https=)
WO (1) WO2008021961A2 (https=)

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