公开(公告)号：WO2012071914A1

公开(公告)日：2012-06-07

申请号：PCT/CN2011/078950

申请日：2011-08-25

Applicant: BYD COMPANY LIMITED ,  MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

Inventor： MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

IPC: H01M4/583 ,  H01M4/587 ,  H01M4/48 ,  H01M10/052

CPC classification number: H01M4/583 ,  B82Y30/00 ,  H01M4/362 ,  H01M4/366 ,  H01M4/38 ,  H01M4/48 ,  H01M4/58 ,  H01M4/5815 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  Y02E60/122

Abstract: A negative active material, a method for preparing the negative active material and a lithium ion battery comprising the same are provided. The negative active material may comprise: a core, an intermediate layer consisting of a first material and an outmost layer consisting of a second material, which is coated on a surface of the intermediate layer. The first material may be at least one selected from the group consisting of the elements that form alloys with lithium, and the second material may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.

Abstract translation: 提供负极活性物质，制备负极活性物质的方法和包含该负极活性物质的锂离子电池。 负极活性材料可以包括：芯，由第一材料组成的中间层和由第二材料组成的最外层，其涂覆在中间层的表面上。 第一材料可以是选自与锂形成合金的元素中的至少一种，第二材料可以是选自过渡金属氧化物，过渡金属氮化物和过渡金属硫化物中的至少一种。

公开(公告)号：WO2017067463A1

公开(公告)日：2017-04-27

申请号：PCT/CN2016/102593

申请日：2016-10-19

Applicant: BYD COMPANY LIMITED

Inventor： XIE, Jing ,  MA, Yongjun ,  YI, Guangui ,  GUO, Zizhu

IPC: H01M10/0562 ,  H01M10/052

CPC classification number: H01M10/052 ,  H01M2/1646 ,  H01M10/0562 ,  H01M2300/0068

Abstract: A solid electrolyte material and a method for preparing the same, a solid electrolyte and a battery are provided. The solid electrolyte material includes: at least one of crystalline inorganic solid electrolyte having a formula of Li 10±1 AB 2 X 12 (I); and at least one of amorphous inorganic solid electrolyte having a formula of yLi 2 X'-(100-y)P 2 X' 5 (II).

Abstract translation: 提供固体电解质材料及其制备方法，固体电解质和电池。 所述固体电解质材料包括：具有式子为Li 10 + 1：AB 2 -X 12（I）的结晶无机固体电解质中的至少一种; ; 和至少一种具有式yLi 2 X' - （100-y）P 2 X 1 -X 5（式 II）。

公开(公告)号：WO2015144074A1

公开(公告)日：2015-10-01

申请号：PCT/CN2015/075148

申请日：2015-03-26

Applicant: BYD COMPANY LIMITED

Inventor： YI, Guangui ,  MA, Yongjun ,  GUO, Zizhu

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  B28B3/00 ,  C01B25/45 ,  C01B35/143 ,  C04B35/447 ,  C04B35/62805 ,  C04B35/62886 ,  C04B2235/3203 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3286 ,  C04B2235/3409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/602 ,  C04B2235/6562 ,  H01M10/0525 ,  H01M2300/0068 ,  H01M2300/0094 ,  Y02T10/7011

Abstract: A solid electrolyte contains an internal component and an external component coated on a surface of the internal component. The internal component is represented by a formula Li 1+x M x Zr 2-x (PO 4 ) 3 , M is one or more elements selected from a group consisting of Al, La, Cr, Ga, Y, and In, and 0.05≤x≤0.4. The external component contains a plastic deformable material and has a conductivity of about 10 -7 S/cm to about 10 -5 S/cm. A method of preparing the solid electrolyte and a lithium ion battery including the solid electrolyte are also provided.

Abstract translation: 固体电解质包含内部组分和涂覆在内部组件的表面上的外部组分。 内部成分由式Li1 + xMxZr2-x（PO4）3表示，M是选自Al，La，Cr，Ga，Y和In中的一种以上的元素，0.05≤x≤0.4。 外部组件包含塑料可变形材料，并且具有约10-7S / cm至约10-5S / cm的导电率。 还提供了制备固体电解质的方法和包括固体电解质的锂离子电池。

公开(公告)号：WO2012071916A1

公开(公告)日：2012-06-07

申请号：PCT/CN2011/079214

申请日：2011-08-31

Applicant: BYD COMPANY LIMITED ,  MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

Inventor： MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

IPC: H01M4/133 ,  H01M4/1393

CPC classification number: H01M4/133 ,  H01M4/362 ,  H01M4/38 ,  H01M4/48 ,  H01M4/5825 ,  H01M4/583 ,  H01M10/0525 ,  Y02E60/122

Abstract: A negative active material, a method of preparing the negative active material and a lithium ion battery comprising the negative active material are provided. The negative active material may comprise: a core (1) composed of a carbon material; and a plurality of composite materials (2) attached to a surface of the core (1), each of which may comprise a first material (21) and a second material (22) coated on the first material (21), in which the first material (21) may be at least one selected from the elements that may form an alloy with lithium, and the second material (22) may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.

Abstract translation: 提供负极活性物质，制备负极活性物质的方法和包含负极活性物质的锂离子电池。 负极活性材料可以包括：由碳材料构成的芯（1）; 和多个复合材料（2），其附接到所述芯体（1）的表面，每个所述复合材料（2）可以包括涂覆在所述第一材料（21）上的第一材料（21）和第二材料（22），其中 第一材料（21）可以是从可与锂形成合金的元素中选择的至少一种，第二材料（22）可以是选自过渡金属氧化物，过渡金属氮化物和过渡金属中的至少一种 硫化物。

公开(公告)号：EP4345943A1

公开(公告)日：2024-04-03

申请号：EP22831582.6

申请日：2022-05-30

Applicant: BYD Company Limited

Inventor： PAN, Yi ,  MA, Yongjun ,  GUO, Zizhu ,  WANG, Liangjun ,  SUN, Huajun

IPC: H01M4/134 ,  H01M10/052 ,  H01M10/44

Abstract: The present disclosure a lithium battery and a preparation method thereof, a charging method and a powered vehicle. The lithium battery includes a positive electrode plate, a negative electrode plate, a separator located between the positive electrode plate and the negative electrode plate, and an electrolyte solution. The negative electrode material layer of the negative electrode plate includes a lithium-silicon composite negative electrode active material. The negative electrode material layer has a protective layer on the surface or the lithium-silicon composite negative electrode active material has a protective layer on the surface. The protective layer includes a polymer matrix and a lithium salt. When the lithium battery is fully charged, the lithium-silicon composite negative electrode active material includes elemental lithium and a lithium-silicon alloy Li 4.4 Si, and the elemental lithium accounts for 15%-95% by mole of the lithium-silicon composite negative electrode active material.

公开(公告)号：EP3493303A1

公开(公告)日：2019-06-05

申请号：EP17833541.0

申请日：2017-07-25

Applicant: BYD Company Limited

Inventor： XIE, Jing ,  GUO, Zizhu ,  MA, Yongjun ,  YI, Guangui ,  SONG, Wei ,  LI, Biao

IPC: H01M4/62 ,  H01M4/133 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525

Abstract: The present disclosure provides a negative electrode material and a preparation method thereof, a negative electrode and an all-solid-state lithium-ion battery. The negative electrode material includes a negative electrode active substance and a coating layer on the surface of the negative electrode active substance, the coating layer including a polymer electrolyte and a sulfide solid electrolyte.

公开(公告)号：EP2633577B1

公开(公告)日：2018-01-17

申请号：EP11845933.8

申请日：2011-08-25

Applicant: Shenzhen BYD Auto R&D Company Limited ,  BYD Company Limited

Inventor： MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

IPC: H01M4/587 ,  H01M4/48 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/58 ,  H01M4/38 ,  B82Y30/00

CPC classification number: H01M4/583 ,  B82Y30/00 ,  H01M4/362 ,  H01M4/366 ,  H01M4/38 ,  H01M4/48 ,  H01M4/58 ,  H01M4/5815 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  Y02E60/122

Abstract: A negative active material, a method for preparing the negative active material and a lithium ion battery comprising the same are provided. The negative active material may comprise: a core, an intermediate layer consisting of a first material and an outmost layer consisting of a second material, which is coated on a surface of the intermediate layer. The first material may be at least one selected from the group consisting of the elements that form alloys with lithium, and the second material may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.

公开(公告)号：EP4525141A1

公开(公告)日：2025-03-19

申请号：EP23794831.0

申请日：2023-03-15

Applicant: BYD Company Limited

Inventor： ZHANG, Ke ,  GUO, Zizhu ,  PAN, Yi ,  ZHU, Yan ,  SUN, Huajun

IPC: H01M10/615 ,  H01M10/625 ,  H01M10/657

Abstract: The present disclosure provides a heating system for heating a power battery, and an electric vehicle. A power battery comprises a first battery cell group and a second battery cell group that are not equal in electromotive force and connected in series. The heating system comprises an inverter, an alternating-current motor, and a first controller. Midpoints of three bridge arms of the inverter are connected to head ends of three-phase coils of the motor in a one-to-one correspondence manner, and tail ends of the motor are connected together to form a neutral point. The neutral point of the motor is connected to a first connection point by means of a connection line, and the first connection point is a connection point between the first battery cell group and the second battery cell group. The first controller is used for inputting a driving signal to the inverter. The first battery cell group, the second battery cell group, the inverter, the motor, and the connection line form an alternating-current self-heating loop.

公开(公告)号：EP4517928A1

公开(公告)日：2025-03-05

申请号：EP23794786.6

申请日：2023-03-08

Applicant: BYD Company Limited

Inventor： ZHANG, Ke ,  GUO, Zizhu ,  PAN, Yi ,  ZHU, Yan ,  SUN, Huajun

IPC: H01M10/60

Abstract: Provided are a heating system for heating a power battery, and an electric vehicle. A power battery comprises a first battery cell group (1) and a second battery cell group (2) which are connected in series. The heating system comprises an inverter (3), an alternating current motor (4), a first controller (6), and a connection line (S 1), midpoints of three bridge arms of the inverter (3) being connected in a one-to-one correspondence manner to head ends of three-phase coils of the alternating current motor (4), the first controller (6) being used for inputting a drive signal to the inverter (3), the first battery cell group (1), the second battery cell group (2), the inverter (3), the alternating current motor (4) and the connection line (S1) constituting an alternating current self-heating loop, at least one heating device (7) being connected in series in the connection line, and the heating device (7) being used for heating the first battery cell group and/or the second battery cell group.

公开(公告)号：EP3080860A1

公开(公告)日：2016-10-19

申请号：EP15768430.9

申请日：2015-03-26

Applicant: BYD Company Limited

Inventor： YI, Guangui ,  MA, Yongjun ,  GUO, Zizhu

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  B28B3/00 ,  C01B25/45 ,  C01B35/143 ,  C04B35/447 ,  C04B35/62805 ,  C04B35/62886 ,  C04B2235/3203 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3286 ,  C04B2235/3409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/602 ,  C04B2235/6562 ,  H01M10/0525 ,  H01M2300/0068 ,  H01M2300/0094 ,  Y02T10/7011

Abstract: A solid electrolyte contains an internal component and an external component coated on a surface of the internal component. The internal component is represented by a formula Li1+xMxZr2−x(PO4)3, M is one or more elements selected from a group consisting of Al, La, Cr, Ga, Y, and In, and 0.05≦x≦0.4. The external component contains a plastic deformable material and has a conductivity of about 10−7 S/cm to about 10−5S/cm. A method of preparing the solid electrolyte and a lithium ion battery including the solid electrolyte are also provided.