国家/地区 中国（10）
IPC部 C（10）
IPC大类 C08（10）
IPC小类 C08G（10）
IPC C08G073/10（10）
发明人 CHEN W（2） JIA N（2） WANG J（2）
公开年 2022（10）
申请年 2022（9） 
专利权人 BEIJING YUCH.（2）

Preparing boron-doped fluorinated polyimide film used in supercapacitor, involves obtaining polyimide by weighing certain amount of diamine, and four organic solvent and adding into mouth flask, stirring at normal temperature to diamine to dissolve, and weighing certain mass of dianhydride.

LI X

Preparing polyimide based on conjugated carbonyl group, comprises e.g. dissolving dianhydride monomer in N-methylpyrrolidone, stirring, adding diamine monomer, and performing polycondensation reaction to obtain polyimide acid solution, cooling, drying and removing solvent.

SUN J, CHEN W, JI F, LIU B

Processing a porous silicon electrode composite material, comprises e.g. taking porous silicon powder and deionized water, performing ultrasonic dispersion to obtain porous silicon dispersion liquid, vacuum drying to obtain pretreated silicon powder and obtaining graphene composite silicon powder.

WANG N

Silicon composite material for use in lithium-ion battery, includes silicon-lithium silicate composite material and modified polyimide coating layer coated on silicon-lithium silicate composite material, where modified polyimide is lithium-ion doped polyimide.

ZHANG C, ZHOU J, JU S, JIANG P

Branched cross-linked polyamic acid solution useful for preparing polyimide adhesive used in electrode material for lithium ion battery, comprises polyamic acid molecular chain with strong polar groups, where entire molecular chain is in branched and cross-linked form.

WANG J, JIA N

Block type polyamic acid solution useful in preparing block type polyimide adhesive for lithium-ion battery pole piece, prepared by polycondensation reaction of rigid polyamic acid precursor e.g. pyromellitic dianhydride and flexible polyamic acid precursor e.g. 4,4-oxydiphthalic anhydride.

WANG J, JIA N

Blended polyamic acid solution used in lithium-ion battery pole piece, comprises rigid polyamic acid, flexible polyamic acid and polar solvent, where rigid polyamic acid is formed by condensation polymerization of rigid dibasic acid anhydride and rigid diamine.

WU D, TIAN G, XU Y, WANG Y, QI K, QI S

New low-dielectric polyimide useful in preparation of low-dielectric polyimide film for electronic packaging.

QIAN X, LIAO B, ZHANG B

Preparing naphthalimide polymer useful in lithium-sodium batteries, preferably sodium ion battery, comprises e.g. uniformly mixing or dissolving naphthalimide compound and ferric chloride in organic solvent, performing solid-phase grinding, washing ball-milled solid and drying.

CHEN W, FENG X, LIU X, ZHENG J

Preparing ultra-light polyurethane imide material porous comprises e.g. adding pyromellitic dianhydride and methanol to dimethylformamide to dissolve, adding conductive carbon material castor oil, ionic water, silicone oil, tertiary amine catalyst and organic tin catalyst and stirring.

WU Q, SHI R, LI C, QIN L, ZOU H, LV X, YAO A, SHU Q