NZ778926A - Lis battery with low solvating electrolyte - Google Patents

Lis battery with low solvating electrolyte

Info

Publication number
NZ778926A
NZ778926A NZ778926A NZ77892620A NZ778926A NZ 778926 A NZ778926 A NZ 778926A NZ 778926 A NZ778926 A NZ 778926A NZ 77892620 A NZ77892620 A NZ 77892620A NZ 778926 A NZ778926 A NZ 778926A
Authority
NZ
New Zealand
Prior art keywords
battery according
battery
current collector
electrolyte
electrode
Prior art date
Application number
NZ778926A
Other versions
NZ778926B2 (en
Inventor
David Kim
Frandsen Mikkel Vestergaard
Holger Althues
Paul Härtel
Thomas Abendroth
Susanne Dörfler
Benjamin Schumm
Stefan Kaskel
Christine Weller
Original Assignee
Sceye Sa
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 Sceye Sa filed Critical Sceye Sa
Publication of NZ778926A publication Critical patent/NZ778926A/en
Publication of NZ778926B2 publication Critical patent/NZ778926B2/en

Links

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
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0568—Liquid materials characterised by the solutes
    • 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
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0569—Liquid materials characterised by the solvents
    • 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
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • 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
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028—Positive electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0025—Organic electrolyte
    • H01M2300/0028—Organic electrolyte characterised by the solvent
    • H01M2300/0037—Mixture of solvents
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Primary Cells (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Cell Separators (AREA)

Abstract

A lithium sulfur battery with a low solvating electrolyte at an amount of less than 2 µl per mg sulfur. The electrolyte comprises dioxolane and hexylmethylether, as well as a Li salt, for example LiTSFi. The electrolyte is free from lithium nitrate, LiNO3.

Claims (15)

C L A I M S
1. A battery containing an electrochemical cell comprising - a negative lithium electrode; 5 - a positive sulfur electrode, the positive sulfur electrode comprising an electrically conductive porous carbon matrix having pores containing sulfur; - a current collector abutting the sulfur electrode; - a separator arranged between the negative lithium electrode and the positive sulfur electrode; 10 - an electrolyte arranged between the electrodes for transport of Li ions between the electrodes; wherein the electrolyte comprises Hexylmethylether (HME), 1,3 dioxolane (DOL), and a lithium salt, wherein the electrolyte between the electrodes is provided at an amount of less than 2 µl per mg sulfur.
2. The battery according to claim 1, wherein at a ratio between HME and DOL is in the range of 2:1 to 1:2.
3. The battery according to claim 1 or 2, wherein the Li salt is 20 Bis(trifluoromethane)sulfonimide lithium salt, LiTFSI.
4. The battery according to claim 3, wherein the lithium salt in the electrolyte has a molar concentration in the range of 1M to 4M. 25
5. The battery according to any one of the preceding claims, wherein the electrolyte is configured for dissolving only a fraction of available polysulfides during charge and discharge of the battery, the fraction being less than 5%.
6. The battery according to any one of the preceding claims, wherein the energy densi- 30 ty of the electrochemical cell is higher than 400 Wh/kg for at least 5 cycles and higher than 350 Wh/kg for at least 20 cycles, when charged and discharged at a charging rate of 0.1C.
7. The battery according to any one of the preceding claims, wherein the mass density of the positive sulfur electrode is higher than 0.55 g/cm .
8. The battery according to any one of the preceding claims, wherein pores in the po- 5 rous carbon matrix comprise pores with a pore volume, wherein at least 50% of the pore volume is defined by pores having an average pore diameter of less than 0.1micrometer.
9. The battery according to any one of the preceding claims, wherein the battery is 10 constructed and arranged to apply a force onto the electrochemical cell in a direction normal to the active surfaces of the electrodes during charging of the battery, the force being in the range of 10 to 50 N/cm .
10. The battery according to any one of the preceding claims, wherein the current col- 15 lector is a perforated metal sheet with perforations, the perforations in total having an area of more than 50% of the area of one side of the metal sheet; wherein the positive sulfur electrode is solidly bonded to the current collector, forming an elec- trode/collector sheet unit. 20
11. The battery according to claim 10, wherein the battery comprises a plurality of electrochemical cells arranged as a stack with two neighboring cells sharing the said current collector, wherein the said current collector is sandwiched between the said positive sulfur electrode and a further identical positive sulfur electrode of a neighbor- ing cell.
12. The battery according to claim 11, wherein the separator comprises a coating of the porous sulfur-containing porous carbon matrix for providing a combination of cathode and separator, wherein each two of such combinations are sandwiching one current collector with the cathode side facing the current collector and being fastened 30 to the current collector, and wherein the combinations are fastened to each other by extending through the perforations of the current collector.
13. The battery according claim 11, wherein the stack is under pressure by a force in the range of 10 to 50 N/cm .
14. The battery according to any one of the preceding claims, wherein the electrolyte is free from lithium nitrate, LiNO . 5
15. The battery according to any one of the preceding claims, substantially as herein described, with reference to any example thereof and with or without reference to the figures.
NZ778926A 2020-01-14 Lis battery with low solvating electrolyte NZ778926B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962793474P 2019-01-17 2019-01-17
PCT/EP2020/050821 WO2020148285A1 (en) 2019-01-17 2020-01-14 Lis battery with low solvating electrolyte

Publications (2)

Publication Number Publication Date
NZ778926A true NZ778926A (en) 2025-03-28
NZ778926B2 NZ778926B2 (en) 2025-07-01

Family

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Also Published As

Publication number Publication date
KR102841866B1 (en) 2025-08-01
UA129291C2 (en) 2025-03-12
ZA202105347B (en) 2025-04-30
PH12021551722A1 (en) 2022-03-28
IL284705B2 (en) 2023-05-01
EA202191834A1 (en) 2021-11-24
EP3912215B1 (en) 2026-03-04
PE20211539A1 (en) 2021-08-16
CN113330619B (en) 2024-07-02
AU2020209397B2 (en) 2024-11-28
US20220085416A1 (en) 2022-03-17
WO2020148285A1 (en) 2020-07-23
CL2021001874A1 (en) 2022-02-04
IL284705A (en) 2021-08-31
JP2022517656A (en) 2022-03-09
SG11202107465SA (en) 2021-08-30
AU2020209397A1 (en) 2021-08-26
MY204961A (en) 2024-09-25
MX2021008614A (en) 2021-08-19
IL284705B1 (en) 2023-01-01
CA3125938A1 (en) 2020-07-23
EP3912215A1 (en) 2021-11-24
KR20210153035A (en) 2021-12-16
JP7441846B2 (en) 2024-03-01
US11961970B2 (en) 2024-04-16
CN113330619A (en) 2021-08-31
BR112021013991A2 (en) 2021-09-21
CA3125938C (en) 2024-04-16

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 14 JAN 2027 BY COMPUTER PACKAGES INC

Effective date: 20251217