IP Library › Granted Patent US 12,381,208
Granted Patent B2
US 12,381,208 · App. 17/767,441 · Granted Aug 5, 2025

Negative electrode mixture composite body for fluoride ion secondary batteries, negative electrode for fluoride ion secondary batteries and secondary battery each using said composite body, and method for producing said composite body

Inventors: Akihisa Tanaka (Saitama, JP); Yoshiyuki Morita (Saitama, JP)
Assignee: HONDA MOTOR CO., LTD.
H01M4/38C01F7/00H01M4/134H01M4/1395H01M4/625H01M10/05C01P2004/62C01P2004/64C01P2006/40H01M2004/021H01M2004/027
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,381,208
App. No.
17/767,441
Granted
Aug 5, 2025
Kind
B2
Abstract

The present invention provides: a negative electrode mixture composite body for fluoride ion secondary batteries, said composite body enabling the achievement of a fluoride ion secondary battery that has high initial charge/discharge efficiency; a negative electrode for fluoride ion secondary batteries and a secondary battery, each using this composite body; and a method for producing this composite body. According to the present invention, a composite body is formed using, as a negative electrode active material, nanometer-sized aluminum particles together with the other constituents of a negative electrode mixture, so that coating by aluminum fluoride that is formed by a re-fluoridation reaction after defluoridation is suppressed, while suppressing aggregation of negative electrode active material particles.

Claims (7)

1. A method for manufacturing a negative electrode material mixture composite for a fluoride ion secondary battery, the method comprising:

a mixing step of mixing a negative electrode active material, a fluoride ion conductive fluoride and carbon black to obtain a negative electrode material mixture; and

a composite particle formation step of subjecting the negative electrode material mixture to grinding and mixing treatment to complex the negative electrode active material, the fluoride ion conductive fluoride and the carbon black so as to obtain composite particles,

wherein the negative electrode active material is aluminum.

2. The method for manufacturing a negative electrode material mixture composite for a fluoride ion secondary battery according to claim 1 , wherein the aluminum is in the form of particles with an average particle diameter of 10 nm to 200 nm.

3. The method for manufacturing a negative electrode material mixture composite for a fluoride ion secondary battery according to claim 1 , wherein the grinding and mixing treatment is dry grinding.

4. The method for manufacturing a negative electrode material mixture composite for a fluoride ion secondary battery according to claim 1 , wherein the grinding and mixing treatment is performed with a ball mill.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2022
From: TANAKA, AKIHISA; MORITA, YOSHIYUKI
To: HONDA MOTOR CO., LTD.
Reel/Frame 059591/0678 →
Continuity (1)
Related Publication 20240072248A1 · Feb 29, 2024
References Cited (56)
US 10164240B2 · Kim et al. · 2018 [cited by applicant]
US 20090029237A1 · Yazami · 2009 [cited by applicant]
US 20100021800A1 · Yazami et al. · 2010 [cited by applicant]
US 20140030559A1 · Yazami et al. · 2014 [cited by applicant]
US 20160087308A1 · Nakamoto et al. · 2016 [cited by applicant]
US 20160190597A1 · Kim et al. · 2016 [cited by applicant]
US 20160204476A1 · Kobayashi · 2016 [cited by applicant]
US 20170062805A1 · Nakamoto et al. · 2017 [cited by applicant]
US 20170084913A1 · Misaki et al. · 2017 [cited by applicant]
US 20170352875A1 · Miki et al. · 2017 [cited by applicant]
US 20170352887A1 · Nakamoto et al. · 2017 [cited by applicant]
US 20190006709A1 · Komori · 2019 [cited by applicant]
US 20190103607A1 · Omichi et al. · 2019 [cited by applicant]
US 20190140279A1 · Miki · 2019 [cited by applicant]
US 20190207207A1 · Komori · 2019 [cited by applicant]
US 20190207244A1 · Komori · 2019 [cited by applicant]
US 20190296352A1 · Adachi · 2019 [cited by applicant]
US 20210273222A1 · Komori · 2021 [cited by applicant]
CN 105742583A · 2016 [cited by applicant]
CN 106133956A · 2016 [cited by applicant]
CN 109216781A · 2019 [cited by applicant]
CN 109755566A · 2019 [cited by applicant]
CN 109980271A · 2019 [cited by applicant]
CN 109980301A · 2019 [cited by applicant]
CN 110021739A · 2019 [cited by applicant]
JP 2000106154A · 2000 [cited by applicant]
JP 2009093968A · 2009 [cited by applicant]
JP 2016062821A · 2016 [cited by applicant]
JP 2017050113A · 2017 [cited by applicant]
JP 2017216209A · 2017 [cited by applicant]
JP 2017220301A · 2017 [cited by applicant]
JP 2018059703A · 2018 [cited by applicant]
JP 2018206755A · 2018 [cited by applicant]
JP 2019087403A · 2019 [cited by applicant]
JP 2019121595A · 2019 [cited by applicant]
JP 2019121596A · 2019 [cited by applicant]
JP 2019129096A · 2019 [cited by applicant]
JP 2019169438A · 2019 [cited by applicant]
KR 20070035194A · 2007 [cited by applicant]
WO 2007146453A2 · 2007 [cited by applicant]
WO 2019070414A1 · 2019 [cited by applicant]
WO 2019187943A1 · 2019 [cited by applicant]
Machine translation JP2019129096A (Year: 2019). [cited by examiner]
C. Rongeat et al., “Development of new anode composite materials for fluoride ion batteries”, J. Mater. Chem. A, 2014. 2. 20861-20872. [cited by applicant]
Le Zhang et al., “Study of all solid-state rechargeable fluoride ion batteries based on thin-film electrolyte”, J. Solid State Electroehem (2017) 21: 1243-1251. [cited by applicant]
M. Anji Reddy et al., “Batteries based on fluoride shuttle”, J. Mater. Chem. , 2011, 21, 17059. [cited by applicant]
Oliver Clemens et al., “Electrochemical fluorination of perovskite type BaFeO2.5”, Dalton Trans. , 2014, 43, 15771-15778. [cited by applicant]
Carine Rongeat et al., “Solid Electrolytes for Fluoride Ion Batteries: Ionic Conductivity in Polycrystalline Tysonite-Type Fluorides”, ACS Appl. Mater. Interfaces 2014, 6, 2103-2110. [cited by applicant]
Carine Rongeat et al., “Nanostructured Fluorite-Type Fluorides as Electrolytes for Fluoride Ion Batteries”, J. Phys. Chem. C 2013, 117, 4943-4950. [cited by applicant]
A. Duvel et al., “Mechanosynthesis of the Fast Fluoride Ion Conductor Ba1-xLaxF2+x: From the Fluorite to the Tysonite Structure”, J. Phys. Chem. C 2014, 118, 7117-7129. [cited by applicant]
Office Action issued Oct. 19, 2024 in the CN Patent Application No. 201980101214.9. [cited by applicant]
Office Action issued Jul. 31, 2024 in the CN Patent Application No. 201980101227.6. [cited by applicant]
Office Action issued Nov. 8, 2023 in the CN Patent Application No. 201980101215.3. [cited by applicant]
Nathan Owen and Qi Zhang, Investigations of aluminum fluoride as a new cathode material for lithium-ion batteries, Feb. 20, 2017. [cited by applicant]
Office Action issued Dec. 6, 2024 in the U.S. Appl. No. 17/767,450. [cited by applicant]
Office Action issued Nov. 6, 2024 in the U.S. Appl. No. 17/767,442. [cited by applicant]