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公开(公告)号：WO2019112194A1
公开(公告)日：2019-06-13
申请号：PCT/KR2018/013677
申请日：2018-11-12
Applicant: 한국전기연구원
CPC classification number: C01B32/198 , C01B32/23 , C01B33/02 , H01M4/134 , H01M4/36 , H01M4/38 , H01M4/587 , H01M4/62
Abstract: 본 발명은, 산화그래핀환원물-실리콘 금속입자 복합체, 복합체 제조방법 및 복합체를 포함하는 이차전지용 전극에 있어서, 산화그래핀환원물-실리콘 금속입자 복합체 제조방법에 있어서, 양이온-파이 상호작용을 통해 형성된 산화그래핀을 환원시킨 산화그래핀환원물 분산용액을 제조하는 단계와 상기 산화그래핀환원물 분산용액을 실리콘 금속입자와 혼합하여 산화그래핀환원물-실리콘 금속입자 분산용액을 제조하는 단계와 상기 산화그래핀환원물-실리콘 금속입자 분산액을 건조하여 코어-쉘 구조의 복합체 분말을 제조하는 단계를 포함하는 것을 기술적 요지로 한다. 이에 의해 양이온-파이 상호작용을 통해 형성되는 저결함/고순도 산화그래핀 분산용액을 이용하여 산화그래핀환원물을 형성하고, 이를 건조하여 코어-쉘 구조의 복합체 분말을 얻을 수 있으며 이를 이차전지용 전극에 적용 가능하다.
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公开(公告)号：WO2019041341A1
公开(公告)日：2019-03-07
申请号：PCT/CN2017/100357
申请日：2017-09-04
Applicant: 超能高新材料股份有限公司
Inventor： 魏汝超
Abstract: 一种锂离子电池负极材料，所述负极材料包括硅基材料及稀土元素，所述稀土元素固溶于硅基材料形成硅基材料与稀土元素固溶体之复合物，其中稀土元素于硅基材料中之固溶量摩尔比不大于27分之1。该负极材料藉由稀土元素固溶于负极材料中形成固溶体复合物结构，以提升材料结构强度，减少硅基负极材料于电池充放电程序中，因材料破碎崩解造成之负极性能降低，进而使该负极材料维持优异电容量与循环寿命等优点，达成锂离子电池性能改善之目标。
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公开(公告)号：WO2019031117A1
公开(公告)日：2019-02-14
申请号：PCT/JP2018/025364
申请日：2018-07-04
Applicant: マクセルホールディングス株式会社
IPC: H01M10/052 , H01M4/131 , H01M4/134 , H01M4/36 , H01M4/46 , H01M4/505 , H01M4/525 , H01M4/66 , H01M10/0567 , H01M10/0568 , H01M10/0569
CPC classification number: H01M4/131 , H01M4/134 , H01M4/36 , H01M4/46 , H01M4/505 , H01M4/525 , H01M4/66 , H01M10/052 , H01M10/0567 , H01M10/0568 , H01M10/0569
Abstract: 本願で開示する非水電解液電池は、正極、負極、非水電解液及びセパレータを備え、前記正極は、少なくとも２種類以上の正極活物質を含み、前記正極活物質のうち少なくとも１種類は、リチウム含有ニッケル層状酸化物を含み、前記正極活物質は、全体として、Ｌｉと、Ｎｉと、Ｌｉ及びＮｉ以外の金属Ｍとを含み、前記正極活物質の全量中において、全Ｎｉ量及び全金属Ｍ量の合計量に対する全Ｎｉ量の比率をモル比Ｎｉ／（Ｎｉ＋Ｍ）で表すと、モル比Ｎｉ／（Ｎｉ＋Ｍ）が０．５以上０．９以下であり、前記負極は、Ａｌ活性層を含み、前記Ａｌ活性層の表面側には、Ｌｉ－Ａｌ合金が形成され、前記非水電解液は、リチウム塩及び有機溶媒を含んでいる。
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公开(公告)号：WO2019027662A1
公开(公告)日：2019-02-07
申请号：PCT/US2018/042204
申请日：2018-07-16
Applicant: NANOTEK INSTRUMENTS, INC.
Inventor： ZHAMU, Aruna , JANG, Bor Z.
CPC classification number: H01M4/525 , H01M4/0404 , H01M4/0428 , H01M4/134 , H01M4/1395 , H01M4/366 , H01M4/485 , H01M4/5805 , H01M4/5815 , H01M4/625
Abstract: Provided is a lithium ion battery that exhibits a significantly improved specific capacity and much longer charge-discharge cycle life. In one preferred embodiment, the battery comprises a cathode, an anode, an electrolyte in ionic contact with both the cathode and the anode, and an optional separator disposed between the cathode and the anode, wherein, prior to the battery being assembled, the anode comprises (a) an anode active material layer composed of fine particles of a first anode active material having an average size from 1 nm to 10 μm, an optional conductive additive, and an optional binder that bonds the fine particles and the conductive additive together to form the anode active material layer having structural integrity and (b) a layer of lithium metal or lithium metal alloy having greater than 80% by weight of lithium therein, wherein the layer of lithium metal or lithium metal alloy is in physical contact with the anode active material layer.
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公开(公告)号：WO2019019410A1
公开(公告)日：2019-01-31
申请号：PCT/CN2017/105674
申请日：2017-10-11
Applicant: 中能中科(天津)新能源科技有限公司
IPC: H01M4/36 , H01M4/133 , H01M10/0525
CPC classification number: H01M4/133 , H01M4/134 , H01M4/36 , H01M4/66 , H01M10/0525
Abstract: 公开了一种改性无锂负极、其制备方法和含有其的锂离子电池。改性无锂负极除了无锂负极材料外，还含有金属锂-骨架碳复合材料，所述金属锂-骨架碳复合材料的含量以质量百分比计为负极活性材料质量的2％-20％。在电池首次的充放电过程中，金属锂-骨架碳材料中的金属锂能够补充在无锂负极表面形成SEI层所消耗的锂，从而提高无锂负极的首次充放电效率。
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Patent Agency Ranking
公开(公告)号：WO2018227155A1
公开(公告)日：2018-12-13
申请号：PCT/US2018/036756
申请日：2018-06-08
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： GUO, Juchen , MANGOLINI, Lorenzo , SU, Haiping
CPC classification number: H01M4/386 , H01M4/0471 , H01M4/134 , H01M4/1395 , H01M4/622 , H01M4/625 , H01M10/052
Abstract: A silicon-carbon composite particle based material is shown. In one example, the silicon-carbon composite particle based material is used as an electrode in a battery, such as a lithium ion battery.
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公开(公告)号：WO2018211610A1
公开(公告)日：2018-11-22
申请号：PCT/JP2017/018434
申请日：2017-05-17
Applicant: 国立研究開発法人産業技術総合研究所 , 日本スピンドル製造株式会社
IPC: H01M4/1395 , H01M4/134 , H01M4/38 , H01M4/48 , H01M4/62
CPC classification number: H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/48 , H01M4/62
Abstract: 電池性能に寄与しないバインダ成分を低減しながら、ケイ素系材料の膨張収縮を抑制し、電極性能を向上させるとともに、製造コストを低減することができる非水電解質二次電池の負極用スラリーの製造方法及び非水電解質二次電池の負極用スラリーを提供するため、ケイ素系材料を含んだ非水電解質二次電池の負極用スラリーの製造方法であって、ケイ素系材料を含み、バインダ成分としての熱硬化性樹脂を固形分比で４～１２重量％含有する非水電解質二次電池の負極用材料に対して、キャビテーションを生じさせる分散、混合装置を用いて分散、混合を行う非水電解質二次電池の負極用スラリーの製造方法。
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8.发明申请
公开(公告)号：WO2018134484A1
公开(公告)日：2018-07-26
申请号：PCT/FI2018/050054
申请日：2018-01-23
Applicant: PICODEON LTD OY
Inventor： LIIMATAINEN, Jari , KEKKONEN, Ville
IPC: H01M4/04 , C23C14/28 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/36 , H01M4/38 , H01M4/485 , H01M4/525 , H01M4/58 , H01M4/587
CPC classification number: H01M4/387 , C23C14/08 , C23C14/28 , C23C14/562 , H01M4/0423 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/364 , H01M4/386 , H01M4/485 , H01M4/525 , H01M4/5805 , H01M4/5815 , H01M4/587
Abstract: In the present invention there is introduced a method for the manufacture of anode materials (54) for lithium batteries so that a coating method based on laser ablation is utilised in the manufacture of at least one material layer. The share by volume of the active anode material used in the invention is at least 10 percent by volume of the anode material coating, and the average particle size is at most 3 μm. A so-called roll-to-roll method can be used in the method, in which the base material (15, 22, 42, 65, 75, 85, 95) to be coated is directed from one roll (41a) to the second roll (41b), and the coating occurs in the area between the rolls (41a-b). In addition, turning mirrors (31) can be used to focus laser pulses (12, 61, 71a-b, 81a-d, 91) as a pulse front (33) to the surface of the target material (13, 62, 72a-b, 82a-d, 82A-D, 92).
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公开(公告)号：WO2018125642A1
公开(公告)日：2018-07-05
申请号：PCT/US2017/067074
申请日：2017-12-18
Applicant: NANOTEK INSTRUMENTS, INC.
Inventor： ZHAMU, Aruna , HE, Hui , PAN, Baofei , SU, Yu-Sheng , JANG, Bor Z.
IPC: H01M10/058 , H01M10/0587 , H01M4/78 , H01M4/75
CPC classification number: H01M4/381 , H01M4/13 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/38 , H01M4/382 , H01M4/5815 , H01M4/583 , H01M4/587 , H01M4/625 , H01M4/661 , H01M4/663 , H01M4/75 , H01M4/78 , H01M4/806 , H01M4/808 , H01M10/052 , H01M10/054 , H01M10/058 , H01M10/38 , H01M2220/20 , Y02E60/122
Abstract: Provided is a rope-shape alkali metal-sulfur battery having (a) a first electrode comprising a conductive porous rod and a mixture of a first electrode active material and a first electrolyte residing in pores of the first porous rod; (b) a porous separator wrapping around the first electrode to form a separator-protected first electrode; (c) a second electrode comprising a conductive porous rod having a mixture of a second electrode active material and a second electrolyte residing in pores of the second porous rod; wherein the separator-protected first electrode and the second electrode are combined to form a braid or a yarn; and (d) a protective sheath encasing the braid or yarn; wherein either the first or the second electrode is a cathode containing sulfur or a sulfur compound as a cathode active material and the battery has a rope shape having a length-to-diameter aspect ratio no less than 5.
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公开(公告)号：WO2018124754A1
公开(公告)日：2018-07-05
申请号：PCT/KR2017/015600
申请日：2017-12-28
Applicant: 주식회사 엘지화학 , 포항공과대학교 산학협력단
IPC: H01M4/134 , H01M4/38 , H01M4/66 , H01M10/052 , H01M4/1395 , H01M4/04 , H01M4/02
CPC classification number: H01M4/02 , H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/66 , H01M10/052 , Y02E60/122 , Y02T10/7011
Abstract: 본 발명은 리튬금속전지용 음극, 이의 제조방법 및 이를 포함하는 리튬금속전지에 관한 것으로, 보다 구체적으로 상기 리튬 금속의 표면에 유전체층을 형성함으로써 리튬 덴드라이트의 형성을 방지할 수 있어, 리튬금속전지에 적용시 수명 특성과 전기화학적 성능을 향상시킬 수 있다.
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