公开(公告)号：WO2022174335A1

公开(公告)日：2022-08-25

申请号：PCT/CA2022/050218

申请日：2022-02-15

Applicant: SUPERCAP TECHNOLOGIES CORP.

Inventor： TAK, Jin Kwon ,  JENSON, Earl ,  SIEBERT, Matthew

IPC: C01B32/318 ,  C01B32/30 ,  C01B32/312 ,  C01B32/336 ,  H01G11/34 ,  H01G11/86 ,  H01M4/04 ,  H01M4/62 ,  H01M4/583

Abstract: Activated carbons and methods of making activated carbons are provided. The activated carbon can be produced by activating lignin or a high-lignin feedstock and then subjecting the activated carbon to a sweeping gas at a first elevated temperature.

公开(公告)号：WO2022131695A1

公开(公告)日：2022-06-23

申请号：PCT/KR2021/018744

申请日：2021-12-10

Applicant: 대주전자재료 주식회사

Inventor： 임종찬 ,  임현희

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M4/583 ,  H01M4/62 ,  H01M10/052 ,  C01B32/956 ,  C01B33/021 ,  H01M4/02

Abstract: 본 발명의 구현예는 규소-탄화규소 복합체를 포함하는 리튬 이온 이차전지용 음극재, 이의 제조방법 및 이를 포함하는 리튬 이온 이차전지에 관한 것으로서, 보다 구체적으로 상기 구현예에 따른 리튬 이온 이차전지용 음극재는 규소 입자 및 탄화규소 입자를 함유하는　규소-탄화규소 복합체를 포함하는 음극재로서, 상기 규소-탄화규소 복합체 중 규소 입자와 탄화규소 입자가 서로 분산되어 있고, 상기 탄화규소 입자의 함량이 특정 범위를 만족함으로써, 낮은 부피 팽창율을 유지하면서 고용량 및 우수한 사이클 특성을 구현할 수 있다.

公开(公告)号：WO2022098503A1

公开(公告)日：2022-05-12

申请号：PCT/US2021/055569

申请日：2021-10-19

Applicant: NOVONIX BATTERY TECHNOLOGY SOLUTIONS INC. ,  BURNS, John

Inventor： GLAZIER, Stephen ,  HUANG, Yadong ,  MCARTHUR, Mark ,  BROOM, Kenneth

IPC: H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: Additive mixtures for nonaqueous battery electrolytes have been discovered that provide for improved performance, and particularly for improved lifetime (cycle life and stability) in high voltage, rechargeable lithium ion batteries. The battery electrolytes comprise less than 10% by weight of an additive mixture comprising an additive solvent of either vinylene carbonate or fluoroethylene carbonate, a sulfur containing compound of either methylene methane disulfonate or ethylene sulfate, and lithium difluorophosphate.

公开(公告)号：WO2022042373A8

公开(公告)日：2022-03-03

申请号：PCT/CN2021/113011

申请日：2021-08-17

Applicant: 深圳新宙邦科技股份有限公司

Inventor： 钱韫娴 ,  胡时光 ,  孙桂岩 ,  林雄贵 ,  邓永红

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0568 ,  H01M4/583 ,  H01M4/62

Abstract: 一种锂离子电池，锂离子电池包括：包含正极活性物质的正极、包含负极活性物质的负极、置于正极和负极之间的隔膜以及非水电解液，负极活性物质包括人造石墨和/或天然石墨；非水电解液包括锂盐、有机溶剂和环硫酸酯/环亚硫酸酯类化合物；非水电解液的电解液质量：电池容量为1.2〜4g/Ah。本发明的锂离子电池的循环性能较好，循环过程中容量保持率高。

公开(公告)号：WO2022003633A1

公开(公告)日：2022-01-06

申请号：PCT/IB2021/055941

申请日：2021-07-02

Applicant: STORA ENSO OYJ

Inventor： OLSSON, Vilhelm ,  WACHTLER, Mario ,  WALTER, Stephan ,  MASSON, David ,  LÖNNEMARK, Lena

IPC: C01B32/318 ,  H01M4/04 ,  H01M4/133 ,  B01F3/18 ,  B29B7/02 ,  B29C48/03 ,  C08H7/00 ,  H01M4/583 ,  H01M10/058

Abstract: The present disclosure relates to a method for producing a carbon-silicon composite material powder, comprising: providing a carbon-containing precursor, which is lignin; providing at least one silicon-containing active material; melt-mixing at least said carbon-containing precursor and said silicon-containing active material(s) to a melt-mixture; providing said melt-mixture in a non-fibrous form and cooling the melt- mixture to provide an isotropic intermediate composite material; subjecting said isotropic intermediate composite material to a thermal treatment, wherein said thermal treatment comprises a carbonization step to provide a carbon-silicon composite material, and subjecting said carbon-silicon composite material to pulverization to provide said carbon-silicon composite material powder. The present disclosure also relates to a carbon-silicon composite material powder obtainable by the method, a negative electrode for a non-aqueous secondary battery, such as a lithium-ion battery, comprising the carbon-silicon composite material powder, and use of the carbon-silicon composite material powder in a negative electrode of a non-aqueous secondary battery.

公开(公告)号：WO2021258811A1

公开(公告)日：2021-12-30

申请号：PCT/CN2021/085844

申请日：2021-04-07

Applicant: 贝特瑞新材料集团股份有限公司 ,  惠州市鼎元新能源科技有限公司

Inventor： 车宗洲 ,  何鹏 ,  任建国 ,  贺雪琴

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M10/0525 ,  H01M2004/027 ,  H01M4/362 ,  H01M4/366 ,  H01M4/386 ,  H01M4/583 ,  H01M4/625 ,  E60

Abstract: 多元复合负极材料及其制备方法、锂离子电池负极材料及锂离子电池。多元复合负极材料包括内核和覆盖在内核表面的外壳，所述内核包括石墨基材和内嵌于石墨基材中的嵌入组分，所述嵌入组分包括纳米硅、钛酸锂和第一非石墨碳材料；所述外壳包括第二非石墨碳材料。所述制备方法包括：采用钛源、纳米硅、锂源和石墨形成的第一前驱体进行煅烧，以制备含有钛酸锂的第二前驱体，然后将所述第二前驱体和碳源进行碳包覆。所述多元复合负极材料具有较高的比容量及首次库伦效率，超低的体积膨胀，非常优异的循环性能以及倍率性能。

公开(公告)号：WO2021256759A1

公开(公告)日：2021-12-23

申请号：PCT/KR2021/007115

申请日：2021-06-08

Applicant: 김재광

Inventor： 김재광 KIM, Jae Kwang

IPC: H01M4/13 ,  H01M4/136 ,  H01M4/36 ,  H01M4/60 ,  H01M4/583 ,  H01M4/62 ,  H01M4/66 ,  H01M10/05

Abstract: 본 발명은 현재 상용화 되어 있는 무기물을 사용한 리튬 이온 이차전지를 대체하기 위한 기술로서 유기물을 전극 물질로 사용하여 이차전지를 구성하는 기술이다. 유기 전극은 전기 전도도가 좋지 않아 전극 내 많은 양의 탄소 소재의 전도체를 포함시켜야 하기 때문에 실제 에너지 밀도가 낮다는 단점을 가지고 있다. 이러한 단점을 극복하기 위하여 본 발명에서는 유기 전극 물질을 다공성의 활성탄과 같은 탄소 구조체 공극 내부에 채우고 탄소 구조체의 외부에도 코팅함으로써 전극 내 유기 활물질의 로딩량을 증가 시켰다. 또한 기존에 사용되는 Al 이나 Cu와 같은 금속 집전체 대신에 카본소재 집전체를 사용하여 플렉서블하며 바이더가 없는 유기 전극을 제작함으로서 로딩량을 증가시키며 전지의 무게를 줄이며 전기화학적 특성을 향상 시켰다.

公开(公告)号：WO2021194743A1

公开(公告)日：2021-09-30

申请号：PCT/US2021/021607

申请日：2021-03-10

Applicant: ENEVATE CORPORATION

Inventor： PERERA, Sanjaya, D. ,  JI, Liwen ,  CHANG, Jeremy ,  PARK, Benjamin

IPC: H01M4/60 ,  H01M4/134 ,  H01M4/48 ,  H01M4/583 ,  H01M10/052 ,  H01M10/054 ,  H01M2004/028 ,  H01M4/463 ,  H01M4/525 ,  H01M4/62

Abstract: Systems and methods for aromatic macrocyclic compounds (Phthalocyanines) as cathode additives for inhibition of transition metal dissolution and stable solid electrolyte interphase formation may include an anode, an electrolyte, and a cathode, where the cathode comprises an active material and a phthalocyanine additive, the additive being coordinated with different metal cationic center and functional groups. The active material may comprise one or more of: nickel cobalt aluminum oxide, nickel cobalt manganese oxide, lithium iron phosphate, lithium cobalt oxide, and lithium manganese oxide, Ni-rich layered oxides LiNi1-xMxO2 where M = Co, Mn, or Al, Li-rich xLi2MnO3(1-x)LiNiaCobMncO2, Li-rich layered oxides LiNi1+xM1-xO2 where M = Co, Mn, or Ni, and spinel oxides LiNi0.5Mn1.5O4. The phthalocyanine additive may include one or more of: cobalt hexadecafluoro phthalocyanine (Co-Pc-F), dilithium phthalocyanine (Li-Pc), cobalt(II) phthalocyanine, nickel(II) phthalocyanine-tetrasulfonic acid tetrasodium salt, titanium(IV) phthalocyanine dichloride, manganese(II) phthalocyanine, zinc phthalocyanine, aluminum phthalocyanine chloride, Iron(II) phthalocyanine, and silicon phthalocyanine dichloride.

公开(公告)号：WO2021185014A1

公开(公告)日：2021-09-23

申请号：PCT/CN2021/076186

申请日：2021-02-09

Applicant: 宁德新能源科技有限公司

Inventor： 冯鹏洋 ,  蔡余新 ,  董佳丽 ,  谢远森

IPC: H01M4/583

Abstract: 本申请涉及一种负极活性材料及使用其的电化学装置和电子装置。具体而言，本申请提供一种负极活性材料，其中所述负极活性材料具有中值粒径D 1v50，所述负极活性材料在1t压力下具有中值粒径D 2v50，且D 2v50/D 1v50为不小于0.8。本申请的负极活性材料有助于实现电化学装置的高容量和高循环膨胀性能的平衡。

公开(公告)号：WO2021168063A1

公开(公告)日：2021-08-26

申请号：PCT/US2021/018495

申请日：2021-02-18

Applicant: FMC LITHIUM USA CORP.

Inventor： YAKOVLEVA, Marina ,  FITCH, Kenneth, Brian ,  XIA, Jian

IPC: H01M4/04 ,  H01M4/38 ,  H01M4/583 ,  H01M4/62 ,  H01M10/0525 ,  H01M50/105 ,  H01M4/02

Abstract: A battery having a cathode and an anode with a three-dimensional porous framework. The anode includes an anode active material lithiated with a lithium source. The lithium particles from the lithium source are alloyed or intercalated with the anode active material during diffusion to form the three-dimensional porous framework. The porous framework provides reduced electrode deterioration due to volume expansion.