CN108365270A - A kind of lithium battery and preparation method thereof with solid electrolyte - Google Patents

A kind of lithium battery and preparation method thereof with solid electrolyte Download PDF

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Publication number
CN108365270A
CN108365270A CN201810235428.2A CN201810235428A CN108365270A CN 108365270 A CN108365270 A CN 108365270A CN 201810235428 A CN201810235428 A CN 201810235428A CN 108365270 A CN108365270 A CN 108365270A
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CN
China
Prior art keywords
solid electrolyte
anode
cathode
negative pole
layer
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Pending
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CN201810235428.2A
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Chinese (zh)
Inventor
熊岳平
杨桂峰
赵力
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JIANGSU YONGDA POWER INDUSTRY Co Ltd
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JIANGSU YONGDA POWER INDUSTRY Co Ltd
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Priority to CN201810235428.2A priority Critical patent/CN108365270A/en
Publication of CN108365270A publication Critical patent/CN108365270A/en
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    • 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
    • H01M10/058—Construction or manufacture
    • 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
    • H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
    • H01M10/0562—Solid materials
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a kind of lithium batteries with solid electrolyte, including substrate, the substrate top is fixed with anode collection layer and negative pole currect collecting layer, the negative pole currect collecting layer is set to anode collection layer side, it is equipped with diaphragm seal at the top of the anode collection layer and negative pole currect collecting layer, anode, solid electrolyte and cathode are equipped between the anode collection layer and negative pole currect collecting layer and diaphragm seal, the anode is by LaxSr1‑xTiO3It is made, the solid electrolyte is by Li1+x+ yAlxTi2‑xSiyP3‑yO12It is made, the cathode is by Sm1‑ xSrxCoO3‑δIt is made, the anode is set at the top of anode collection layer, and described cathode one end is set at the top of negative pole currect collecting layer.Present invention reduces prepare requirement and difficulty, it reduces manufacturing cost and there is excellent interfacial combined function, efficiently avoid the generation of interface secondary phase, improve the chemical property of positive electrode and negative electrode, the appearance controllable preparation for realizing solid electrolyte, to which the performance and quality of lithium battery obtained be effectively ensured.

Description

A kind of lithium battery and preparation method thereof with solid electrolyte
Technical field
The present invention relates to technical field of lithium batteries, more particularly to a kind of lithium battery and its preparation side with solid electrolyte Method.
Background technology
With the development of epoch and science and technology, the achievement acquired by the research of solid electrolyte lithium battery is also increasing, The density and structure that solid electrolyte has can allow more charged ion aggregations to conduct the electric current of bigger, in turn at one end Battery capacity is promoted, and because electrolyte is solid-state, as side reaction, oxidation point occur at high temperature for traditional lithium battery electrolytes Solution, generation gas, the such chance of generation burning substantially reduce, thus it is safer, it will become in addition, solid state lithium battery is sealed up for safekeeping It is more prone to, in use, also need not additionally increase cooling tube, electronics control etc. again on the large scale equipments such as automobile, saves Cost, so lighter.
But the existing lithium battery with solid electrolyte there is also some, as solid electrolyte with anode and it is negative Interface stability is poor between pole, which results in its reduce interface impedance it is larger, influence finished product lithium battery actual use effect Fruit.
Therefore, inventing a kind of lithium battery with solid electrolyte and preparation method thereof, have very much must to solve the above problems It wants.
Invention content
The purpose of the present invention is to provide a kind of lithium battery and preparation method thereof with solid electrolyte, it is above-mentioned to solve The problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of lithium battery with solid electrolyte, including Substrate, the substrate top are fixed with anode collection layer and negative pole currect collecting layer, and the negative pole currect collecting layer is set to anode collection layer Side, the anode collection layer be equipped at the top of negative pole currect collecting layer diaphragm seal, the anode collection layer and negative pole currect collecting layer with it is close Anode, solid electrolyte and cathode are equipped between sealer, the anode is by LaxSr1-xTiO3Be made, the solid electrolyte by Li1+x+yAlxTi2-xSiyP3-yO12It is made, the cathode is by Sm1-xSrxCoO3-δIt is made, the anode is set to anode collection layer top Portion, described cathode one end are set at the top of negative pole currect collecting layer, and the solid electrolyte is set between positive electrode and negative electrode.
Preferably, the anode collection layer is made of aluminium foil.
Preferably, the negative pole currect collecting layer is made of copper foil.
Preferably, the manufacture material of the anode is LaxSr1-xTiO3, wherein 0≤x≤0.4, the structure of the anode are 1-dimention nano threadiness.
Preferably, the manufacture material of the solid electrolyte is Li1+x+yAlxTi2-xSiyP3-yO12, wherein 0≤x≤1,0≤ y≤1。
Preferably, the manufacture material of the cathode is Sm1-xSrxCoO3-δ, wherein 0≤x≤1, the structure of the cathode are 1-dimention nano threadiness.
The present invention also provides a kind of preparation methods of the lithium battery with solid electrolyte, specifically include following steps：
Step 1：By LaxSr1-xTiO3The mode that plating is reused after electrostatic spinning process is processed collects coated in anode On fluid layer, anode is made；
Step 2：By Sm1-xSrxCoO3-δThe mode that plating is reused after electrostatic spinning process is processed is coated in cathode In current collector layer, cathode is made；
Step 3：By the Li after electrostatic spinning process is processed1+x+yAlxTi2-xSiyP3-yO12Nanometer powder is made, so It is suppressed afterwards using tablet press machine, solid electrolyte is made；
Step 4：Anode, solid electrolyte and negative electrode layer obtained in step 1 to step 3 are stacked and set, from top to bottom Be followed successively by cathode, solid electrolyte and anode, be then placed in temperature programmed control stove and heat 5-15h at 70-90 DEG C, be made half at Product battery；
Step 5：Then the anode collection layer of semi-finished product battery bottom is bonded with negative pole currect collecting layer, then half at Product outside batteries plate diaphragm seal and obtain finished product lithium battery.
The technique effect and advantage of the present invention：La in the present inventionxSr1-xTiO3Anode, Li is made1+x+yAlxTi2-xSiyP3- yO12Solid electrolyte and Sm is made1-xSrxCoO3-δElectrostatic spinning technique is utilized during cathode is made to be prepared, So that anode, solid electrolyte and cathode are oxide nanofiber, preparation temperature is relatively low, reduces preparation requirement and hardly possible Degree reduces manufacturing cost, while good can fire in positive electrode and negative electrode, and shows excellent interfacial combined function, The generation for efficiently avoiding interface secondary phase improves the chemical property of positive electrode and negative electrode, realizes solid electrolyte Appearance controllable preparation, to which the performance and quality of lithium battery obtained be effectively ensured.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
In figure：1 substrate, 2 anode collection layers, 3 negative pole currect collecting layers, 4 diaphragm seals, 5 anodes, 6 solid electrolytes, 7 Cathode.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
A kind of lithium battery with solid electrolyte according to figure 1, including substrate 1,1 top fixation of the substrate are set There are anode collection layer 2 and negative pole currect collecting layer 3, the negative pole currect collecting layer 3 to be set to 2 side of anode collection layer, the anode collection layer 2 It is made of aluminium foil, the negative pole currect collecting layer 3 is made of copper foil, and the anode collection layer 2 is equipped with sealing with 3 top of negative pole currect collecting layer Film 4 is equipped with anode 5, solid electrolyte 6 and cathode 7, institute between the anode collection layer 2 and negative pole currect collecting layer 3 and diaphragm seal 4 Anode 5 is stated by LaxSr1-xTiO3It is made, wherein 0≤x≤0.4, positive 5 structure is 1-dimention nano threadiness, described solid Body electrolyte 6 is by Li1+x+yAlxTi2-xSiyP3-yO12It is made, wherein 0≤x≤1,0≤y≤1, the cathode 7 is by Sm1- xSrxCoO3-δIt is made, wherein 0≤x≤1, the structure of the cathode 7 is 1-dimention nano threadiness, and described positive 5 are set to anode collection The top of fluid layer 2,7 one end of the cathode are set to 3 top of negative pole currect collecting layer, the solid electrolyte 6 be set to anode 5 and cathode 7 it Between.
The present invention also provides a kind of preparation methods of the lithium battery with solid electrolyte, specifically include following steps：
Step 1：By LaxSr1-xTiO3The mode that plating is reused after electrostatic spinning process is processed collects coated in anode On fluid layer 2, anode 5 is made；
Step 2：By Sm1-xSrxCoO3-δThe mode that plating is reused after electrostatic spinning process is processed is coated in cathode In current collector layer 3, cathode 7 is made；
Step 3：By the Li after electrostatic spinning process is processed1+x+yAlxTi2-xSiyP3-yO12Nanometer powder is made, so It is suppressed afterwards using tablet press machine, solid electrolyte 6 is made；
Step 4：Obtained positive 5 in step 1 to step 3, solid electrolyte 6 and the stacking of cathode 7 are placed, by upper It is followed successively by cathode 7, solid electrolyte 6 and anode 5 under, is then placed in temperature programmed control stove and heats 5-15h at 70-90 DEG C, Semi-finished product battery is made；
Step 5：Then the anode collection layer 2 of semi-finished product battery bottom is bonded with negative pole currect collecting layer 3, then half Diaphragm seal 4 is plated outside finished battery obtains finished product lithium battery.
By above-described embodiment it is found that LaxSr1-xTiO3Anode 5, Li is made1+x+yAlxTi2-xSiyP3-yO12Solid electrolytic is made Matter 6 and Sm1-xSrxCoO3-δElectrostatic spinning technique is utilized during cathode 7 is made to be prepared so that anode 5, solid Electrolyte 6 and cathode 7 are oxide nanofiber, and preparation temperature is relatively low, reduce preparation requirement and difficulty, reduce and prepare Cost, while good can fire on anode 5 and cathode 7, and excellent interfacial combined function is showed, it is effectively prevented from The generation of interface secondary phase, improves the chemical property of anode 5 and cathode 7, and the appearance for realizing solid electrolyte 6 is controllable It prepares, to which the performance and quality of lithium battery obtained be effectively ensured.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features, All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's Within protection domain.

Claims (7)

1. a kind of lithium battery with solid electrolyte, including substrate (1), it is characterised in that：Fixation is set at the top of the substrate (1) Have an anode collection layer (2) and negative pole currect collecting layer (3), the negative pole currect collecting layer (3) is set to anode collection layer (2) side, it is described just Pole current collector layer (2) is equipped with diaphragm seal (4), the anode collection layer (2) and negative pole currect collecting layer (3) with negative pole currect collecting layer (3) top Positive (5), solid electrolyte (6) and cathode (7) are equipped between diaphragm seal (4), the anode (5) is by LaxSr1-xTiO3System At the solid electrolyte (6) is by Li1+x+yAlxTi2-xSiyP3-yO12It is made, the cathode (7) is by Sm1-xSrxCoO3-δIt is made, The anode (5) is set at the top of anode collection layer (2), and described cathode (7) one end is set at the top of negative pole currect collecting layer (3), described solid Body electrolyte (6) is set between positive (5) and cathode (7).
2. a kind of lithium battery with solid electrolyte according to claim 1, it is characterised in that：The anode collection layer (2) it is made of aluminium foil.
3. a kind of lithium battery with solid electrolyte according to claim 1, it is characterised in that：The negative pole currect collecting layer (3) it is made of copper foil.
4. a kind of lithium battery with solid electrolyte according to claim 1, it is characterised in that：The anode (5) Manufacture material is LaxSr1-xTiO3, wherein 0≤x≤0.4, the structure of the anode (5) is 1-dimention nano threadiness.
5. a kind of lithium battery with solid electrolyte according to claim 1, it is characterised in that：The solid electrolyte (6) manufacture material is Li1+x+yAlxTi2-xSiyP3-yO12, wherein 0≤x≤1,0≤y≤1.
6. a kind of lithium battery with solid electrolyte according to claim 1, it is characterised in that：The cathode (7) Manufacture material is Sm1-xSrxCoO3-δ, wherein 0≤x≤1, the structure of the cathode (7) is 1-dimention nano threadiness.
7. a kind of preparation method of lithium battery with solid electrolyte according to claim 1-6, which is characterized in that tool Body includes the following steps：
Step 1：By LaxSr1-xTiO3The mode that plating is reused after electrostatic spinning process is processed is coated in anode collection layer (2) on, anode (5) is made；
Step 2：By Sm1-xSrxCoO3-δThe mode that plating is reused after electrostatic spinning process is processed is coated in negative pole currect collecting On layer (3), cathode (7) is made；
Step 3：By the Li after electrostatic spinning process is processed1+x+yAlxTi2-xSiyP3-yO12Nanometer powder is made, then makes It is suppressed with tablet press machine, solid electrolyte (6) is made；
Step 4：Anode (5) obtained, solid electrolyte (6) and cathode (7) stacking in step 1 to step 3 are placed, by Top to bottm is followed successively by cathode (7), solid electrolyte (6) and anode (5), is then placed in temperature programmed control stove and adds at 70-90 DEG C Semi-finished product battery is made in hot 5-15h；
Step 5：Then the anode collection layer (2) of semi-finished product battery bottom is bonded with negative pole currect collecting layer (3), then half Diaphragm seal (4) is plated outside finished battery obtains finished product lithium battery.
CN201810235428.2A 2018-03-21 2018-03-21 A kind of lithium battery and preparation method thereof with solid electrolyte Pending CN108365270A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109742357A (en) * 2019-01-03 2019-05-10 浙江锋锂新能源科技有限公司 Composite positive pole and preparation method thereof and positive plate containing the positive electrode
CN113403648A (en) * 2020-03-17 2021-09-17 本田技研工业株式会社 Electrolysis device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109742357A (en) * 2019-01-03 2019-05-10 浙江锋锂新能源科技有限公司 Composite positive pole and preparation method thereof and positive plate containing the positive electrode
CN113403648A (en) * 2020-03-17 2021-09-17 本田技研工业株式会社 Electrolysis device

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Application publication date: 20180803