公开(公告)号：US20190036159A1

公开(公告)日：2019-01-31

申请号：US16047247

申请日：2018-07-27

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ho Sung KIM ,  Seung Hoon YANG ,  Min-young KIM ,  Ha Young JUNG ,  Da Hye KIM

IPC: H01M10/0562 ,  H01M10/052 ,  H01M10/0585 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62

CPC classification number: H01M10/0562 ,  C04B35/486 ,  C04B35/63488 ,  C04B2235/3203 ,  C04B2235/3217 ,  C04B2235/3227 ,  C04B2235/3286 ,  C04B2235/6025 ,  C04B2235/6567 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0585 ,  H01M2300/0077

Abstract: Disclosed is a gallium (Ga)-doped LLZO solid electrolyte represented by Chemical Formula 1 below, a method of preparing the same, and an all-solid-state lithium secondary battery including the same. In the solid electrolyte according to the present invention and the preparation method thereof, the amounts of gallium and lithium of starting materials are adjusted and the flow rate of materials to be supplied is controlled, thus forming a high-precision cubic structure and improving sintering properties, thereby increasing the ionic conductivity of the solid electrolyte. The lithium secondary battery including the solid electrolyte can exhibit superior charge/discharge characteristics and cycle characteristics. LixGayLazZrwO12(5≤x≤9, 0

公开(公告)号：US20160181455A1

公开(公告)日：2016-06-23

申请号：US14906764

申请日：2013-12-20

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Chae Hwan JEONG ,  Jong Hwan LEE ,  Ho Sung KIM ,  Chang Heon KIM

IPC: H01L31/068 ,  H01L31/18 ,  H01L31/0236 ,  H01L31/0352 ,  H01L31/028

CPC classification number: H01L31/068 ,  H01L31/02363 ,  H01L31/028 ,  H01L31/035227 ,  H01L31/035281 ,  H01L31/1804 ,  H01L31/186 ,  Y02E10/547 ,  Y02P70/521

Abstract: Disclosed are a silicon wafer having a complex structure, a method of fabricating the same, and a solar cell using the same, wherein the silicon wafer is configured such that an oriented silicon wafer has a pyramid pattern formed through wet etching and additionally has nanowires formed in the direction in which silicon crystals are oriented on the pyramid pattern, and is further doped with POCl3.

Abstract translation: 公开了具有复杂结构的硅晶片及其制造方法和使用该硅晶片的太阳能电池，其中，硅晶片被构造成使得定向硅晶片具有通过湿蚀刻形成的金字塔图案，并且还形成有纳米线 在硅晶体取向于金字塔图案的方向上，并进一步用POCl 3掺杂。

公开(公告)号：US20190148771A1

公开(公告)日：2019-05-16

申请号：US16249687

申请日：2019-01-16

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ho Sung KIM ,  Tae Won KIM ,  Duck Rye CHANG ,  Jong Ho LEE ,  Kyeong Wan KIM ,  Min Young KIM

IPC: H01M10/0562 ,  C04B35/64 ,  C04B35/626 ,  C04B35/50 ,  H01M10/0525 ,  C04B35/486

Abstract: The method for manufacturing a solid electrolyte using an LLZ material for a lithium-ion battery comprises the steps of: providing a starting material in which lanthanum nitrate [La(NO3)3.6H2O] and zirconium nitrate [ZrO(NO3)2.6H2O] are mixed at a mole ratio of 3:2; forming an aqueous solution by dissolving the starting material; forming a precipitate by putting ammonia, which is a complex agent, and sodium hydroxide, which adjusts the pH of a reactor, into the aqueous solution, mixing the same, and then co-precipitating the mixture; forming a primary precursor powder by cleaning, drying and pulverizing the precipitate; forming a secondary precursor powder by mixing lithium powder [LiOH.H2O] with the primary precursor powder and ball-milling the mixture so as to solidify the lithium; and forming a solid electrolyte powder by heat-treating the secondary precursor powder.

公开(公告)号：US20180248223A1

公开(公告)日：2018-08-30

申请号：US15754630

申请日：2016-08-23

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ho Sung KIM ,  Min-Young KIM ,  Seung Hoon YANG ,  Jinsub LIM ,  Duck Rye CHANG ,  Jong Ho LEE

IPC: H01M10/0562 ,  H01M10/0585 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2300/0071

Abstract: Disclosed is a method of preparing a solid electrolyte, which includes (a) preparing a solid electrolyte precursor slurry by subjecting a mixed solution including a metal precursor solution, containing a lanthanum precursor, a zirconium precursor and an aluminum precursor, a complexing agent, and a pH controller to coprecipitation, (b) preparing a solid electrolyte precursor by washing and drying the solid electrolyte precursor slurry, (c) preparing a mixture by mixing the solid electrolyte precursor with a lithium source, and (d) preparing an aluminum-doped lithium lanthanum zirconium oxide (LLZO) solid electrolyte by calcining the mixture, and which is also capable of adjusting the aluminum content of a starting material to thus control sintering properties and of adjusting the composition of a precursor and a lithium source to thus control the crystal structure, thereby improving the ionic conductivity of the solid electrolyte. In addition, a method of manufacturing an all-solid-state lithium secondary battery, including a solid electrolyte having improved ion conductivity, can be provided using the method of preparing the solid electrolyte.

公开(公告)号：US20190273283A1

公开(公告)日：2019-09-05

申请号：US16348675

申请日：2017-10-27

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ho Sung KIM ,  Min Young KIM ,  Seung Hoon YANG ,  Da Hye KIM ,  Hye Min RYU ,  Ha Young JUNG

IPC: H01M10/0562 ,  H01M10/058 ,  H01M10/052 ,  C01G25/02

Abstract: Disclosed is a method of preparing a solid electrolyte, the method including (a) preparing a solid electrolyte precursor by subjecting a mixed solution composed of a lanthanum precursor, a zirconium precursor, a gallium precursor, a complexing agent, and a pH adjuster to coprecipitation, (b) washing and drying the solid electrolyte precursor, (c) preparing a mixture by mixing the washed and dried solid electrolyte precursor with a lithium source, and (d) calcining the mixture to give a calcined solid electrolyte, which is a gallium (Ga)-doped lithium lanthanum zirconium oxide (LLZO), as represented by Chemical Formula 1. A solid electrolyte having increased ionic conductivity and an improved potential window can be provided using the method of preparing the solid electrolyte.

公开(公告)号：US20190051934A1

公开(公告)日：2019-02-14

申请号：US16072571

申请日：2016-11-15

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ho Sung KIM ,  Min-Young Kim ,  Seung Hoon YANG ,  Da-Hye KIM ,  Kyeong Joon KIM ,  Seung Woo CHOI ,  Jinsub LIM ,  Duck Rye CHANG

IPC: H01M10/0562 ,  H01M10/052 ,  H01M10/058 ,  H01M4/505 ,  H01M4/525

Abstract: The present invention relates to an all-solid-state lithium secondary battery and a method of manufacturing the same. The all-solid-state lithium secondary battery includes a cathode, an anode, and a composite solid electrolyte layer between the cathode and the anode, wherein first and second LLZOs contained respectively in the cathode and the composite solid electrolyte layer are each independently aluminum-doped or undoped LLZO, and the battery of the invention can exhibit improved discharge capacity and cycle characteristics because both the cathode and the composite solid electrolyte layer contain a conductive polymer, a lithium salt and an inorganic ceramic solid electrolyte. The method of the invention enables the all-solid-state lithium secondary battery to be manufactured in a non-sintering manner, thus reducing manufacturing costs and controlling interfacial reactions between active materials, between solid electrolyte particles, and between an electrolyte and an electrode, thereby further reducing the internal resistance of the battery.

公开(公告)号：US20180309163A1

公开(公告)日：2018-10-25

申请号：US15888667

申请日：2018-02-05

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ho Sung KIM ,  Min Young KIM ,  Seung Hoon YANG ,  Da Hye KIM ,  Ha Young JUNG ,  Hye Min RYU ,  Jin Sub LIM

IPC: H01M10/0525 ,  H01M10/04 ,  H01M10/0585 ,  H01M4/66 ,  H01M4/38 ,  H01M4/134 ,  H01M10/0562

CPC classification number: H01M10/0525 ,  H01M4/134 ,  H01M4/382 ,  H01M4/661 ,  H01M10/0418 ,  H01M10/044 ,  H01M10/0562 ,  H01M10/0585 ,  H01M2004/029 ,  H01M2220/20 ,  H01M2220/30

Abstract: Disclosed is a bipolar all solid-state battery, which can efficiently control a manufacturing process thereof and can improve electric properties thereof. In an exemplary embodiment, the bipolar all solid-state battery includes a unit cell including a first current collector having a first surface and a second surface opposite to the first surface; a first active material coated on the first surface of the first current collector, a second current collector having a first surface and a second surface opposite to the first surface; a second active material coated on the first surface of the second current collector and facing the first active material; and an all solid-state electrolyte formed between the first active material and the second active material. When a plurality of the unit cells are stacked, the first current collector and the second current collector are connected to each other through surface contact.

公开(公告)号：US20180198119A1

公开(公告)日：2018-07-12

申请号：US15506443

申请日：2015-06-18

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Ho Sung KIM ,  Byeong Su KANG ,  Sun Woo YANG ,  Min Young KIM ,  Chae Hwan JEONG

IPC: H01M4/1397 ,  C01B25/45 ,  H01M4/58 ,  H01M4/62 ,  H01M4/04 ,  H01M10/052 ,  B01J2/22

CPC classification number: H01M4/1397 ,  B01J2/22 ,  C01B25/45 ,  C01B25/451 ,  H01M4/0433 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/58 ,  H01M4/5825 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/028 ,  H01M2220/30

Abstract: Disclosed is a method of preparing a cathode electrode material for a secondary battery, including a hydrate precursor preparation step of preparing a manganese phosphate hydrate precursor using a coprecipitation process, a synthetic powder preparation step of preparing a synthetic powder by mixing the manganese phosphate hydrate precursor in a powder form with lithium phosphate and carbon, an oxide material powder preparation step of preparing a lithium manganese phosphate oxide material powder by milling and annealing the synthetic powder, a composite powder preparation step of preparing a composite powder by mixing the lithium manganese phosphate oxide material powder with a Li2MnO3-based cathode material, and a slurry preparation step of preparing a slurry by mixing the composite powder with a conductor and a binder.

公开(公告)号：US20160163887A1

公开(公告)日：2016-06-09

申请号：US14908461

申请日：2014-06-03

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Chae Hwan JEONG ,  Sung Jae PARK ,  Ho Sung KIM

IPC: H01L31/0236 ,  H01L31/18 ,  H01L31/0216 ,  H01L31/028

CPC classification number: H01L31/02363 ,  H01L31/02168 ,  H01L31/022483 ,  H01L31/0284 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

Abstract: Disclosed are a silicon substrate for a solar cell and a method of manufacturing the same, wherein the reflectance of solar light can be decreased by gap-filling with AZO, and electrical properties, especially resistivity, can be reduced through e-beam irradiation, thus maximizing the cell efficiency and improving the electrical properties of AZO applied to a silicon solar cell.

Abstract translation: 公开了一种用于太阳能电池的硅衬底及其制造方法，其中通过间隙填充AZO可以减少太阳光的反射率，并且可以通过电子束照射降低电性能，特别是电阻率，因此 使电池效率最大化并改善AZO应用于硅太阳能电池的电性能。