WO2015002410A1 - 전고체 리튬이차전지용 고체 전해질 및 그 제조방법 - Google Patents
전고체 리튬이차전지용 고체 전해질 및 그 제조방법 Download PDFInfo
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Definitions
- the present invention relates to a solid electrolyte for a lithium secondary battery capable of synthesizing LLZ material, a nano-class solid electrolyte having a garnet structure, having high ion conductivity and excellent electrochemical potential window as an all-solid electrolyte, and a method of manufacturing the same.
- lithium secondary batteries have high energy density and are expected to be used not only for small IT devices such as mobile phones and notebook PCs, but also for medium and large batteries such as electric vehicles and electric power storage.
- a lithium secondary battery having a high energy density of high safety In general, as an electrolyte of a lithium secondary battery, a liquid electrolyte mainly containing an organic solvent is used.
- a lithium secondary battery using a liquid electrolyte containing an organic solvent has difficulty in securing battery safety in overcharge and thermal characteristics.
- safety issues are one of the most important issues along with high energy density of batteries. Therefore, research to replace a liquid electrolyte with a solid electrolyte has been attracting attention as an alternative to secure safety, and research on optimization of the microstructure of the electrode and the interface according to the solidification of the electrolyte is being conducted.
- conventional solid electrolyte materials are divided into organic (polymeric) solid electrolytes and inorganic solid electrolytes.
- the polymer solid electrolyte is prepared by applying lithium salt and various inorganic fillers and additives to a polymer based on polyethylene oxide (PEO), and has an ionic conductivity of about 10 -5 to 10 -7 S / cm at room temperature and a yield of about 0.5, and the potential window shows a limit of about 0 to 4.5V. Therefore, in order to improve the ionic conductivity of the polymer solid electrolyte, use conditions of about 60 ° C. or more are required.
- the conventional polymer solid electrolyte has a structure that cannot be called essentially a solid electrolyte because it uses a lithium salt, there is a limit in solving the safety problem fundamentally.
- inorganic solid electrolytes are somewhat disadvantageous in terms of flexibility, unlike organic (polymeric) solid electrolytes, but because of their inherently incombustible properties, they are very excellent in terms of safety, and have a property of conducting Li single ions. It is close to 1, and it is possible to maintain a wider range of potential windows (0 to 5.5 V) than the polymer solid electrolyte depending on the type and characteristics of the material.
- Inorganic solid electrolytes are classified into crystalline materials and amorphous materials. Representative inorganic solid electrolytes have ion conductivity in the range of about 10 ⁇ 3 to 10 ⁇ 6 S / cm in the bulk state (single crystal).
- the ionic conductivity required for practical use is required to be about 10 -3 S / cm at room temperature.
- these values have perovskite-type sulfide-based solid electrolytes and oxide-based solid electrolytes. Nacincon type. Research of such an oxide-based solid electrolyte has been active since 2000. The oxide-based solid electrolyte has been improved from the initial ionic conductivity of 10 -13 S / cm level to about 10 -3 S / cm recently.
- the electrochemical properties of these materials also show certain limitations, such as about 10 -3 to 10 -5 S / perovskite composition ((La, Li) TiO3) and nacicon composition (LiTi2 (PO4) 3). Although it shows a relatively high ionic conductivity of cm, the solid electrolyte of this composition has a potential window of about 1.5 to 5.0 V or 2.5 to 5.0 V, which shows very unstable electrochemical properties at the negative potential. . Therefore, there is a limit to the implementation of the all-solid-state lithium secondary battery aimed at high voltage characteristics.
- perovskite and nacicon oxide-based solid electrolytes have relatively excellent ion conduction and yield, but exhibit limited characteristics of potential window, and thus are aimed at adopting high energy density cathode material and low potential high capacity cathode material.
- Application to solid lithium secondary batteries has limitations.
- the sulfide-based solid electrolyte is also improved in ionic conductivity up to about 10 -3 S / cm, in particular, it can be seen that the ionic conductivity properties in the case of Li 2 SP 2 S 5 and Li 2 SSiS composition.
- the ionic conductivity of the sulfide-based solid electrolyte (Li 10 GeP 2 S 12 ) has shown excellent results of about 10 ⁇ 2 to 10 ⁇ 3 S / cm.
- the ion conduction characteristics of the sulfide-based solid electrolyte are very similar to those of the conventional organic liquid electrolyte, and show very good results.
- sulfide-based solid electrolytes have a strong reaction with high-voltage cathode materials of 4.0V level and cathode materials (lithium) of 0V level, new problems arise in controlling the interfacial reaction between solid electrolytes and electrodes.
- Most of these studies are focused on these fields, but they are not yet commercialized.
- sulfide-based solid electrolytes are not suitable as environmentally friendly energy storage materials because they require high purity, can be handled only under certain conditions such as nitrogen or argon atmosphere, and cause environmental problems. That is, the sulfide-based solid electrolyte has a very high reactivity with the electrode even though the ion conductivity itself is very excellent. Therefore, in spite of many research efforts, the electrochemical characteristics of electrodes and batteries are exhibited, and thus, it is difficult to develop commercial materials.
- the present invention provides a method of further improving ion conductivity by using a coprecipitation method of an oxide-based solid electrolyte having a garnet structure with high yield and fundamentally stable dislocation window characteristics.
- lanthanum nitrate [La (NO 3 ) 3 .6H 2 O] and zirconium nitrate [ZrO (NO 3 ) 2 .6H 2 ] is 3: Providing a mixed starting material at a molar ratio of 2, dissolving the starting material to form an aqueous solution, and adding a complexing agent (NH 4 OH) and a pH adjusting solution (NaOH) of the reactor to the aqueous solution, followed by mixing Precipitating to form a precipitate, washing, drying and pulverizing the precipitate to form a primary precursor powder, and mixing and ball milling lithium powder [LiOH.H 2 O] to the primary precursor powder to solidify lithium.
- a complexing agent NH 4 OH
- NaOH pH adjusting solution
- the dominant crystal structure is fabricated using the characteristic of changing into cubic and tetragonal structures.
- the crystal structure of the solid electrolyte powder is dominated by the cubic structure (Cubic) structure and tetragonal structure (Tetragonal) structure according to the heat treatment temperature conditions, the heat treatment temperature is 600 ⁇ 1200 °C, the solid electrolyte powder is The cubic structure and tetragonal structure coexist.
- physical properties may be improved by using a characteristic in which the structure of the cubic structure and the tetragonal structure are sintered at a sintering temperature condition equal to or higher than the heat treatment temperature.
- the heat treatment temperature is 700 ⁇ 800 °C
- the solid electrolyte powder when the solid electrolyte powder is sintered at 1200 °C for about 5 hours can be transformed into a complete cubic structure (Cubic) structure and more than 90% high density microstructure
- the heat treatment The temperature is around 900 ° C.
- the solid electrolyte powder can be maintained in a high-density microstructure having a complete tetragonal structure and a relative density of 60% or more by sintering at about 900 ° C. for about 5 hours.
- the complexing agent may be a mixture of ammonia water of 5 normal (N) concentration so that the pH of the aqueous solution is a solution of 10-11.
- the starting material may be titrated at a rate of 4 mL / min, and at the same time the complexing agent may be titrated at a rate of 4 mL / min.
- NaOH solution is added to adjust the pH in the step of forming the precipitate, the NaOH solution is formed in a 1 molar concentration, can be automatically titrated according to the pH change of the coprecipitation reactor as the coprecipitation reaction proceeds.
- the solid electrolyte powder is injected into a mold for uniaxial compression molding, the first molding, the step of compressing the mold and heat-treating the pellets formed by the compressed mold to form a high-density pellets It may comprise a step.
- an oxide-based solid electrolyte (Li x La y Zr z O 12 ) having a garnet structure may be manufactured using a coprecipitation method.
- the coprecipitation method it is possible to implement a crystal structure (isometric or tetragonal) of a specific solid electrolyte material under various heat treatment conditions, and to prepare a solid electrolyte having an equiaxed or tetragonal structure by controlling the sintering conditions.
- the solid electrolyte of the equiaxed or tetragonal structure has an ion conductivity of about 10 ⁇ 3 S / cm or more at room temperature.
- FIG. 1 is a flowchart illustrating a method of manufacturing a solid electrolyte according to the present invention.
- FIG. 2 is a graph showing the results of TGA analysis before heat treatment of the precursor prepared by the coprecipitation method and the precursor prepared by the solid phase method.
- FIG. 3 is a graph showing an XRD analysis result according to a heat treatment temperature of a precursor prepared by a solid electrolyte manufacturing method, according to a second embodiment.
- FIG. 4 is a graph showing an XRD analysis showing a cubic structure at 1200 ° C. in relation to a third embodiment.
- FIG. 5 is a graph showing an XRD analysis showing a tetragonal structure at 900 ° C. in a third embodiment.
- FIG. 6 is a graph showing the results of measuring the ion conductivity of an equiaxed structure (Cubic) structure at 1200 °C.
- FIG. 7 is a graph showing the results of measuring ion conductivity of tetragonal structure at 900 ° C.
- Example 1 the coprecipitation method according to the present invention is introduced through FIG. 1, and then, in Example 1, the coprecipitation precursor mixed with lithium before heat treatment and the precursor prepared by the conventional solid-phase method
- the comparison of the thermal properties demonstrates that the coprecipitation method adopted in the present invention is excellent, and the ruling crystal structure of the synthetic powder according to the heat treatment temperature conditions is identified through Example 2, and the sheet (pellet) of the solid electrolyte is determined through Example 3
- the conditions of the governing crystal structure (heat treatment conditions) will be checked in more detail.
- FIG. 1 is a method of manufacturing a solid electrolyte material (Li x La y Zr z O 12 ) having an oxide-based garnet structure by a coprecipitation method.
- the starting material is dissolved in distilled water to form an aqueous starting material solution (S1).
- the starting material is composed of lanthanum nitrate and zirconium nitrate. Specifically, La (NO 3 ) 3 .6H 2 O and ZrO (NO 3 ) 2 .6H 2 O are formed by mixing in a molar ratio of 3: 2. . The starting material is then dissolved in 500 ml of distilled water to form an aqueous starting material solution.
- a complexing agent is prepared (S2), and coprecipitation is carried out by mixing the prepared complexing agent with an aqueous starting material solution in a coprecipitation reactor (S3).
- the complexing agent may use ammonia water (NH 4 OH).
- the complexing agent mixes and dissolves ammonia water at a concentration of 5 normal (N) in 500 ml of distilled water to form a 0.6 molar aqueous solution.
- sodium hydroxide (NaOH) powder is dissolved in order to adjust the pH of the reactor prepared by preparing 1000ml of 1 mol solution.
- the pH was adjusted to 11 with about 500 mL of distilled water and NaOH prepared, and the impeller speed of the coprecipitation reactor was set to about 1000 rpm.
- the starting material is titrated at a rate of about 4 ml / min, and at the same time, ammonia water prepared as a complexing agent is titrated at the same rate of 4 ml / min.
- a 1 mole solution of NaOH prepared as described above for pH control of the reactor is set to automatically titrate according to the pH change of the coprecipitation reactor.
- the precipitate generated in the coprecipitation reaction is washed by providing distilled water many times, and the washing is performed until the pH is 7-8.
- the washed precipitate is dried at about 110 ° C. overnight in a general dryer to prepare a primary precursor powder.
- the primary precursor is a state that does not contain lithium, it may be represented in the form of a composition, such as La3Zr2 (OH) x.
- the secondary precursor powder can be formed by measuring the primary precursor and the lithium powder (LiOH.H 2 O) at a constant ratio and uniformly mixing using the planetary ball mill.
- a lithium final solid precursor powder was heat treated at 600, 700, 800, 900, 1000, 1100, and 1200 ° C for 2 hours (heating rate of 1 ° C / min), respectively, to give a brown final garnet structure solid.
- Seven electrolyte powder samples were prepared.
- the solid electrolyte powder prepared according to the heat treatment temperature was confirmed by ICP analysis, and the structure and shape of the composite material were confirmed by TGA (Thermogravimetry Analysis) / DSC (differential scanning calorimetry) thermal analysis, XRD and SEM analysis.
- the powder obtained by heat treatment at the heat treatment temperature of 700 ⁇ 800 °C or 900 °C is a specific crystal structure (as will be described later, the cubic structure (Cubic) structure at 800 °C, tetragonal at 900 °C) Tetragonal structure) dominates over 90%. Therefore, at this temperature, the pellets are prepared using the powder samples, respectively.
- the pellets are filled with respective powders in a uniaxial compression molding mold and compressed at a pressure of about 80 MPa at room temperature, thereby producing pellets having a diameter of 20 mm and a thickness of 1.5 mm.
- the pellet molded product manufactured using the powder obtained by heat treatment at 700 to 800 ° C. was sintered at 1200 ° C. for 2 hours, 5 hours and 10 hours, respectively, and the pellet produced using the powder obtained by heat treatment at 900 ° C.
- the moldings were sintered at 900 ° C. for 2 hours, 5 hours, and 10 hours to complete the preparation of the solid electrolyte sheet in pellet form.
- Each solid electrolyte pellet sample manufactured under these conditions was reprocessed into specimens of a certain standard, and the electrochemical measuring cell manufactured by the AC 2-Probe 4-wire method, and the Solar tron 1260 impedance measuring instrument ( The resistance component was measured using AC impedance, and the ion conductivity was derived by the formula. In addition, the ion conductivity was measured by separating the bulk resistance of the pure material of the solid electrolyte pellet ( ⁇ b ) and the overall resistance ( ⁇ t ) including interfacial interface resistance (polarization resistance).
- Example 2 is a graph showing the results of TGA thermal analysis on precursors before synthesis and heat treatment of the precursors according to the conventional solid-state method and the embodiment of the present invention.
- the precursor prepared by the coprecipitation method shows the thermal behavior of a very different calcination process compared to the precursor prepared by the solid phase method.
- the precursor prepared by the coprecipitation method is calcined at a relatively lower temperature than the precursor prepared by the solid phase method.
- the precursor prepared by the solid-phase method is completed calcination at about 850 °C
- the precursor prepared by the coprecipitation method is completed calcination at about 750 °C, it is possible to lower the calcination temperature of about 100 °C by coprecipitation method
- FIG. 3 is a graph showing XRD peaks according to heat treatment temperature conditions for dissolving lithium in a precursor prepared by coprecipitation according to Example 1 of the present invention, and Table 1 shows the main peaks (004, 040) of XRD accordingly. This table shows the area comparison analysis.
- the final heat-treated synthesized precursor powder is dominated by an equiaxed structure (Cubic) structure in a certain temperature section (700, 800 °C) over each heat treatment temperature section, and also in a specific temperature section 900, 1000 °C), the characteristics dominated by the tetragonal structure were confirmed.
- the behavior of two crystal phases coexisted in a certain heat treatment temperature range (600, 1100, 1200 °C). That is, the crystal structure of the material of the solid electrolyte (Li x La y Zr z O 12 ) of the garnet structure was found to be highly dependent on the conditions such as heat treatment temperature and time.
- the peak of the (004) cubic structure and the tetragonal structure of (040) and (004) in the 2 ⁇ section (26-29 °) obtained as a result of XRD analysis of each powder according to the heat treatment conditions.
- the dominantly retained crystal phase was selected and subjected to XRD Rietveld analysis to summarize the lattice constant and crystallization size of the synthetic powder at each heat treatment temperature as shown in Table 2.
- the temperature range of 700-800 °C maintains the lattice constant of the cubic structure, and when it is increased from 800 °C to 900 °C, the lattice constant a increases and c tends to decrease.
- the behavior of the crystal structure changes rapidly from the cubic structure to the tetragonal structure.
- the crystallite size increases by about 20 times from 266A to 5625A under the same temperature conditions.
- tetragonal structure is predominantly maintained at the heat treatment temperature of 900-1000 ° C.
- the lattice constant a in the tetragonal lattice structure decreases and the c value increases, so the occupancy of the cubic structure in the tetragonal structure gradually increases. Seems.
- the powder particles (secondary precursor powder particles) prepared according to the present invention are composed of aggregates of primary particles, referring to SEM analysis results of 800 and 900 ° C. heat-treated powder, and at 800 ° C. of an equiaxed structure (Cubic) structure. It is composed of primary particle powder of about 1 ⁇ m or less, but is composed of about 3 ⁇ m or more at 900 ° C. of tetragonal structure.
- the crystal phase changes from the cubic structure to the tetragonal structure, and the size of the primary particles increases significantly. We can see that it is related to the increase in size.
- Example 3 as a method for producing a pellet molded body (sheet), pelletized 700 ° C, 800 ° C heat-treated powder appearing predominantly equiaxed (Cubic) structure or tetragonal (Tetragonal) depending on the synthesis and heat treatment conditions of the precursor Filling the molding mold was molded to a constant size and thickness, and the sintered pellet was prepared by heat treatment at 1200 °C temperature for 2 hours (sample # 1), 5 hours (sample # 2), 10 hours (sample # 3). In addition, pellets were formed in the same manner using 900 ° C.
- FIG. 4 is a graph showing an XRD analysis showing an equiaxed structure at 1200 ° C. as a third embodiment
- FIG. 5 is a tetragonal system at 900 ° C. as a third embodiment. This graph shows the XRD analysis showing the Tetragonal structure.
- the ion conductivity of the specimen (three types) subjected to 1200 ° C. heat treatment is the same as that of FIG. 6, and was heat-treated at 900 ° C.
- the ion conductivity of the specimen (three types) is shown in FIG.
- the ion conductivity (bulk, ⁇ b ) of the pellet molded body of the cubic structure which is heat-treated at 1200 ° C. for 5 hours is measured at all temperatures (300 at room temperature) compared to the specimen heat-treated at the same temperature for 10 hours. Since ion conductivity is excellent with respect to (degree. C.), the heat treatment sintering time is most preferably about 5 hours.
- the overall state of ion conductivity ( ⁇ t ) including bulk ion conductivity ( ⁇ b ) and interparticle polarization resistance with respect to the measured temperature at room temperature and 300 ° C. of FIG. 6 is summarized in Table 3 according to the sintering conditions.
- the pellet sheet sintered at 900 ° C. for 10 hours was confirmed to have a phenomenon in which the ionic conductivity was increased despite the relative density of about 60% and the dominant equiaxed structure (Cubic) structure.
- Ionic conductivity is the most important factor is the cubic structure (Cubic) structure, as observed in the SEM picture it can be seen that the method of producing a solid electrolyte sheet of a fine structure having a small grain boundary area and high relative density is an important factor.
- the pellet-formed sintered body is manufactured under the sintering condition of heat treatment at 700 ° C. for about 5 hours using 700, 800 ° C. heat-treated synthetic powder having an equiaxed cubic structure or tetragonal structure, crystals are produced.
- the structure is almost 100% cubic, and the plastic density characteristics of the pellet sintered body are greatly improved, so that the overall ion conductivity is 2.426 x 10 -3 S / cm at room temperature. Excellent results can be seen.
- the overall ion conductivity ( ⁇ t) including the polarization resistance of the synthetic powder interface shows excellent properties of ⁇ 10 ⁇ 1 S / cm or more compared to the sample subjected to heat treatment for 10 hours for 5 hours heat treatment.
- the pellets were manufactured using 900 ° C heat-treated powder, which predominantly exhibits tetragonal structure, and the specimens heat-treated at the same 900 ° C for 5 hours greatly increased the crystallite size. It is believed that the ionic conductivity is improved by greatly reducing the particle interfacial resistance, but since the sintering temperature of the pellet is relatively low, the plastic density of the sintered body is greatly reduced and the polarization resistance between particles increases, so that the overall ion conductivity ( ⁇ t) at room temperature is increased. At about 10 ⁇ 6 S / cm level, it was found to decrease relatively large compared to the cubic structure and 1200 ° C. sintering conditions. Therefore, the control of pellet thickness, particle size, and sintering time is required to improve the plastic density when producing pellets of tetragonal structure.
- the solid electrolyte material in an equiaxed structure (Cubic) structure and 1200 °C sintering conditions increases the ionic conductivity with increasing the measurement temperature and shows a high value of about 10 -2 S / cm at about 300 °C
- a powder having a cubic structure or tetragonal structure may be formed of the coprecipitation synthetic powder at a first heat treatment temperature of 600 to 800 ° C.
- a first heat treatment temperature 600 to 800 ° C.
- the high-density microstructure can be confirmed that the best ionic conductivity at room temperature.
- a crystal structure (isometric or tetragonal) of the solid electrolyte material may be implemented by specific heat treatment conditions.
- the heat treatment conditions for realizing the complete crystal structure by the equiaxed structure (Cubic) structure can be proposed, it can be suggested that the ion conductivity can be improved.
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Abstract
Description
Claims (19)
- 란타늄 질산염 [La(NO3)3·6H2O]과 지르코늄 질산염 [ZrO(NO3)2·6H2O]이 3:2의 몰비로 혼합된 출발물질을 제공하는 단계;상기 출발물질을 용해시켜 수용액을 형성하는 단계;상기 수용액에 착화제(NH4OH) 및 반응기의 pH 조절 용액(NaOH)를 투입 및 혼합하여 공침전시켜서 침전물을 형성하는 단계;상기 침전물을 세척 및 건조하고 분쇄하여 1차 전구체 분말을 형성하는 단계;상기 1차 전구체 분말에 리튬 분말[LiOH·H2O]을 혼합 및 볼밀하여 리튬을 고용시킨 2차 전구체 분말을 형성하는 단계; 및상기 2차 전구체 분말을 열처리하여 고체 전해질 분말을 형성하는 단계;를 포함하며, 상기 고체 전해질 분말은 LixLayZrzO12의 조성을 가지며, x=6~9mole, y=2~4mole, z=1~3mole인 리튬이차전지용 고체 전해질 제조방법.
- 제 1 항에 있어서,상기 열처리된 고체 전해질 분말을 사용하여 펠렛 시트로 제작하는 단계;상기 펠렛 시트를 재차 열처리하여 등축정계(Cubic) 구조가 지배하는 결정구조로 변화하는 단계;를 더 포함하는 리튬이차전지용 고체 전해질 제조방법.
- 제1항에 있어서,상기 고체 전해질 분말은 상기 열처리 온도 조건에 따라 등축정계(Cubic) 구조 및 정방정계(Tetragonal) 구조 중 하나의 구조가 지배적인 결정구조로 변화되는 것을 특징으로 하는 리튬이차전지용 고체 전해질 제조방법.
- 제1항에 있어서,상기 열처리 온도는 600~1200 ℃이며, 상기 고체 전해질 분말은 등축정계 (Cubic) 구조 또는 정방정계(Tetragonal) 구조가 공존하거나, 특정구조가 지배적으로 나타나는 것을 특징으로 하는 리튬이차전지용 고체 전해질 제조방법.
- 제3항 또는 제4항에 있어서,상기 열처리 온도는 600~1200℃ 이며, 상기 등축정계 (Cubic) 구조 또는 정방정계 (Tetragonal) 구조가 상기 열처리 온도와 같거나 높은 조건의 소결 온도 조건에서 구조가 변이하는 특성을 이용하여 물성을 향상시키는 리튬이차전지용 고체 전해질 제조방법.
- 제1항에 있어서,상기 열처리 온도는 700~800℃ 이며, 상기 고체 전해질 분말을 1200℃ 에서 2~8시간 소결 처리하여 완전한 등축정계 (Cubic) 구조 또는 등축정계 (Cubic) 구조가 지배하는 소재로 변이시키는 것을 특징으로 하는 리튬이차전지용 고체 전해질 제조방법.
- 제 6 항에 있어서,상기 고체 전해질 분말을 1200℃ 에서 5시간 소결 처리하여, 동축정계(Cubic) 구조가 지배하고, 90% 이상의 고밀도 미세구조를 가지는 소재로 변이시키는 것을 특징으로 하는 리튬이차전지용 고체 전해질 제조방법.
- 제1항에 있어서,상기 열처리 온도는 900℃ 부근이며, 상기 고체 전해질 분말을 900℃ 부근에서 10시간 이상 소결 처리하여 제조하는 것을 특징으로 하는 리튬이차전지용 고체 전해질 제조방법.
- 제1항에 있어서,상기 열처리 온도는 900℃ 부근이며, 상기 고체 전해질 분말을 900℃ 부근에서 2-10시간 소결 처리하여 제조하는 것을 특징으로 하는 리튬이차전지용 고체 전해질 제조방법.
- 제 9 항에 있어서,상기 고체 전해질 분말을 900℃ 부근에서 5시간 소결 처리하여 정방정계(Tetragonal) 구조가 지배하고, 60% 이상의 상대밀도를 갖는 고밀도 미세구조의 고체 전해질 제조방법.
- 제1항에 있어서,상기 착화제는 5 노르말(N) 농도의 암모니아수가 사용되고,상기 수용액의 pH가 pH10~11의 용액이 되도록 착화제와 수산화나트륨(NaOH)을 혼합하는 리튬이차전지용 고체 전해질 제조방법.
- 제11항에 있어서,상기 착화제를 혼합하는 단계는, 출발물질을 4㎖/min의 속도로 적정하고, 동시에 상기 착화제를 4㎖/min 의 속도로 적정 하는 리튬이차전지용 고체 전해질 제조방법.
- 제11항에 있어서,상기 침전물을 형성하는 단계에서 pH 조절을 위해서 수산화나트륨(NaOH) 용액을 첨가하고,상기 NaOH 용액은 1몰 농도로 형성되고, 공침 반응이 진행됨에 따라 공침 반응기의 pH 변화에 따라 자동적으로 적정되는 리튬이차전지용 고체 전해질 제조방법.
- 제1항에 있어서,상기 고체 전해질 분말을 1축 압축 성형용 몰드에 투입하여 성형하는 단계;상기 몰드를 압축하는 단계; 및상기 압축된 몰드로 성형된 펠렛을 상기 2차 전구체 분말의 열처리 온도와 동일한 온도에서 열처리하여 고밀도의 미세구조를 형성하는 단계;를 더 포함하는 리튬이차전지용 고체 전해질 제조방법.
- 리튬이차전지용 고체 전해질에 있어서,상기 고체 전해질의 분말은 열처리를 통해 LixLayZrzO12의 조성을 가지도록 형성하되 x=6~9mole, y=2~4mole, z=1~3mole이며, 상기 열처리 온도 조건에 따라 지배적인 결정구조가 등축정계(Cubic) 구조 및 정방정계(Tetragonal) 구조로 변화되는 특성을 이용하여 제조되는 리튬이차전지용 고체 전해질.
- 제15 항에 있어서,상기 고체 전해질의 분말의 열처리 온도는 600~1200 ℃이며, 상기 고체 전해질 분말은 등축정계(Cubic) 구조와 정방정계(Tetragonal) 구조가 공존하는 것을 특징으로 하는 리튬이차전지용 고체 전해질.
- 제15항에 있어서,상기 고체 전해질의 분말은의 600~1200 ℃의 온도에서 열처리되어, 결정구조가 변이하는 것을 특징으로 하는 리튬이차전지용 고체 전해질.
- 제15항에 있어서,상기 고체 전해질의 분말의 열처리 온도는 700~800℃ 이며, 상기 고체 전해질의 분말을 펠렛으로 제작하여1200℃ 에서 5시간 이상 소결 처리하여 완전한 등축정계(Cubic) 구조로 변이되는 것을 특징으로 하는 리튬이차전지용 고체 전해질.
- 제15항에 있어서,상기 고체 전해질의 열처리 온도는 900℃ 부근이며, 상기 고체 전해질 분말을 펠렛으로 제작하여 900℃ 부근에서 5시간 이상 소결 처리하여 제조하는 것을 특징으로 하는 리튬이차전지용 고체 전해질.
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JP2018536965A (ja) * | 2015-09-18 | 2018-12-13 | コリア インスティチュート オブ インダストリアル テクノロジー | 全固体リチウム二次電池用固体電解質の製造方法 |
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WO2021014905A1 (ja) * | 2019-07-19 | 2021-01-28 | 第一稀元素化学工業株式会社 | セラミックス粉末材料、セラミックス粉末材料の製造方法、及び、電池 |
KR102305332B1 (ko) | 2019-12-27 | 2021-09-24 | 울산과학기술원 | 표면 코팅 세라믹 고체 전해질 및 이의 제조방법 |
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KR20240014650A (ko) | 2022-07-25 | 2024-02-02 | (주)티디엘 | 이차전지용 고체전해질 미세입자 제조 및 이를 활용한 전지 제조방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010143785A (ja) * | 2008-12-18 | 2010-07-01 | National Institute Of Advanced Industrial Science & Technology | リチウムイオン伝導性酸化物およびその製造方法、並びに該酸化物により構成された固体電解質 |
JP2012174659A (ja) * | 2011-02-24 | 2012-09-10 | Shinshu Univ | ガーネット型固体電解質、当該ガーネット型固体電解質を含む二次電池、及び当該ガーネット型固体電解質の製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6753110B1 (en) * | 1999-10-08 | 2004-06-22 | National Research Council Of Canada | Cathode active material for lithium electrochemical cells |
JP5649033B2 (ja) * | 2010-03-19 | 2015-01-07 | 独立行政法人産業技術総合研究所 | リチウムイオン伝導性酸化物及びその製造方法、並びにそれを部材として使用した電気化学デバイス |
JP2011195372A (ja) * | 2010-03-19 | 2011-10-06 | National Institute Of Advanced Industrial Science & Technology | リチウムイオン伝導性酸化物の単結晶及びその製造方法、並びにそれを部材として使用した電気化学デバイス |
JP2013107779A (ja) * | 2011-11-17 | 2013-06-06 | Honda Motor Co Ltd | 焼結体及びその製造方法 |
JP6079307B2 (ja) * | 2012-05-14 | 2017-02-15 | 株式会社豊田中央研究所 | ガーネット型リチウムイオン伝導性酸化物の製造方法 |
JP6393974B2 (ja) * | 2013-11-01 | 2018-09-26 | セントラル硝子株式会社 | 固体電解質前駆体、その製造方法、固体電解質の製造方法、及び固体電解質−電極活物質複合体の製造方法 |
-
2013
- 2013-07-04 KR KR1020130078499A patent/KR101568468B1/ko active IP Right Grant
-
2014
- 2014-06-27 US US14/902,488 patent/US20160380304A1/en not_active Abandoned
- 2014-06-27 JP JP2016523652A patent/JP6259516B2/ja active Active
- 2014-06-27 WO PCT/KR2014/005739 patent/WO2015002410A1/ko active Application Filing
-
2019
- 2019-01-16 US US16/249,687 patent/US11177502B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010143785A (ja) * | 2008-12-18 | 2010-07-01 | National Institute Of Advanced Industrial Science & Technology | リチウムイオン伝導性酸化物およびその製造方法、並びに該酸化物により構成された固体電解質 |
JP2012174659A (ja) * | 2011-02-24 | 2012-09-10 | Shinshu Univ | ガーネット型固体電解質、当該ガーネット型固体電解質を含む二次電池、及び当該ガーネット型固体電解質の製造方法 |
Non-Patent Citations (1)
Title |
---|
N. JANANI. ET AL., SYNTHESIS OF CUBIC LI7LA3ZR2012 BY MODIFIED SOL-GEL PROCESS IONICS, vol. 17, 1 August 2011 (2011-08-01), SPRINGER-VERLAG, DE, pages 575 - 580 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018536965A (ja) * | 2015-09-18 | 2018-12-13 | コリア インスティチュート オブ インダストリアル テクノロジー | 全固体リチウム二次電池用固体電解質の製造方法 |
US10637095B2 (en) | 2015-09-18 | 2020-04-28 | Tdl Co., Ltd. | Method for preparing solid electrolyte for all-solid-state lithium secondary battery |
CN105932327A (zh) * | 2016-05-16 | 2016-09-07 | 北京科技大学 | 一种立方相锂镧锆氧固态电解质纳米材料的制备方法 |
CN115340378A (zh) * | 2022-10-20 | 2022-11-15 | 江苏蓝固新能源科技有限公司 | 一种氧化物固态电解质及其制备方法以及一种锂离子电池 |
CN115340378B (zh) * | 2022-10-20 | 2023-02-03 | 江苏蓝固新能源科技有限公司 | 一种氧化物固态电解质及其制备方法以及一种锂离子电池 |
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JP2016526771A (ja) | 2016-09-05 |
KR20150005136A (ko) | 2015-01-14 |
US20160380304A1 (en) | 2016-12-29 |
US20190148771A1 (en) | 2019-05-16 |
JP6259516B2 (ja) | 2018-01-10 |
KR101568468B1 (ko) | 2015-11-11 |
US11177502B2 (en) | 2021-11-16 |
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