← Back to Patent Explorer
US4595643A Expired / Lapsed US ⏱️ 0.0 years remaining

Air cell electrode and process for preparing its catalyst

Assignee: Panasonic Holdings Corp
•
Filing: 1983-07-21
•
Granted: 1986-06-17
•
Expires: 2003-07-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PCT No. PCT/JP83/00234 Sec. 371 Date Nov. 19, 1984 Sec. 102(e) Date Nov. 19, 1984 PCT Filed Jul. 21, 1983 PCT Pub. No. WO84/03799 PCT Pub. Date Sep. 27, 1984.An air cell is disclosed, with a catalyst containing MnOx where 1.45</=x</=1.60, the material having X-ray diffraction peaks corresponding to the lattice constants of Mn5O8.

Inventors

  • 👤 Nobuharu Koshiba
  • 👤 Hayashi Hayakawa
  • 👤 Keigo Momose
  • 👤 Akira Ohta

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:53
CPC Classifications
C; C01; C01G; C01G45/00; C01G45/02; H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M4/00; H01M4/86; H01M4/90; H01M4/9016; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2002/74; C01P2002/77; C01P2004/00; C01P2004/01; C01P2004/03; C01P2004/10

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 37 words
An air cell including a catalyst comprising a manganese oxide whose X-ray diffraction peaks corresponding to its lattice constants have the characteristics of Mn 5 O 8 and whose chemical analysis for MnOx satisfies the condition 1.45x≦1.60.
Claim 2
Dependent Claim 37 words
An air cell including a catalyst comprising a manganese oxide whose X-ray diffraction peaks corresponding to its lattice constants have the characteristics of Mn 5 O 8 and whose chemical analysis for MnOx satisfies the condition 1.45x≦1.60.
Claim 3
Dependent Claim 16 words
An air cell as claimed in claim 1 wherein said manganese oxide occurs as acicular crystals.
Claim 4
Dependent Claim 31 words
An air cell as claimed in claim 1 wherein the catalyst is composed of manganese oxide as a main component and activated carbon, carbon black and fluorine-containing resin as additive components.
Claim 5
Dependent Claim 32 words
An air cell as claimed in claim 1 wherein the air cell is composed of said manganese oxide catalyst as a main component and carbon black and fluorine-containing resin as additive components.
Claim 6
Dependent Claim 33 words
An air cell including a catalyst comprising a manganese oxide whose X-ray diffraction peaks corresponding to its lattice constants d with copper (Cu) as the target are 4.90±0.02, 3.09±0.02, 2.48±0.02, 2.03±0.02 and 1.54±0.02.
Claim 7
Dependent Claim 33 words
An air cell including a catalyst comprising a manganese oxide whose X-ray diffraction peaks corresponding to its lattice constants d with copper (Cu) as the target are 4.90±0.02, 3.09±0.02, 2.48±0.02, 2.03±0.02 and 1.54±0.02.
Claim 8
Dependent Claim 71 words
An air cell including a catalyst comprising a manganese oxide as claimed in claim 5, wherein with the relative peak intensity I/I 1 at the lattice constant d=2.48±0.02 of its X-ray diffraction pattern being taken as 100, the relative peak intensity at d=4.90±0.02 lies between 50 and 100, the peak intensities at d=3.09±0.02 and d=2.03+0.02 are not greater than 70, and the peak intensity at d=1.54±0.02 is not greater than 50.
Claim 9
Dependent Claim 16 words
An air cell as claimed in claim 5 wherein said manganese oxide occurs as acicular crystals.
Claim 10
Dependent Claim 31 words
An air cell as claimed in claim 5 wherein the catalyst is composed of manganese oxide as a main component and activated carbon, carbon black and fluorine-containing resin as additive components.
Claim 11
Dependent Claim 32 words
An air cell as claimed in claim 5 wherein the air cell is composed of said manganese oxide catalyst as a main component and carbon black and fluorine-containing resin as additive components.
Claim 12
Dependent Claim 32 words
An air cell including a catalyst comprising a manganese oxide whose X-ray diffraction peaks in terms of lattice constants d with copper (Cu) as the target include 4.92±0.02, 3.11±0.02, 2.48±0.02 and 1.62±0.02.
Claim 13
Dependent Claim 32 words
An air cell including a catalyst comprising a manganese oxide whose X-ray diffraction peaks in terms of lattice constants d with copper (Cu) as the target include 4.92±0.02, 3.11±0.02, 2.48±0.02 and 1.62±0.02.
Claim 14
Dependent Claim 66 words
An air cell including a catalyst comprising a manganese oxide as claimed in claim 10 wherein with the relative peak intensity I/I 1 at lattice constant d=4.92±0.02 in the X-ray diffraction pattern of said manganese oxide being taken as 100, the relative peak intensity at d=3.11±0.02 lies somewhere between 50 and 100 and the relative peak intensities at d=2.48±0.02 and d=1.54±0.02 are not greater than 50.
Claim 15
Dependent Claim 17 words
An air cell as claimed in claim 10 wherein said manganese oxide occurs as a circular crystals.
Claim 16
Dependent Claim 31 words
An air cell as claimed in claim 10 wherein the catalyst is composed of manganese oxide as a main component and activated carbon, carbon black and fluorine-containing resin as additive components.
Claim 17
Dependent Claim 32 words
An air cell as claimed in claim 10 wherein the air cell is composed of said manganese oxide catalyst as a main component and carbon black and fluorine-containing resin as additive components.

References Cited (Backward Citations)

US4121018A Cited
US4269691A Cited
US4405699A Cited
JPS58157068A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-06-16 1989-12-16 1990-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-06-16 1993-12-16 1994-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-06-16 1997-12-16 1998-06-17 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag