CN201845824U

CN201845824U - Anode of compound type lithium primary battery and lithium primary battery

Info

Publication number: CN201845824U
Application number: CN2010205477828U
Authority: CN
Inventors: 汪沣; 钱国珠; 汪以道
Original assignee: SUZHOU JINKEFA LITHIUM BATTERY CO Ltd
Current assignee: SUZHOU JINKEFA LITHIUM BATTERY CO Ltd
Priority date: 2010-09-29
Filing date: 2010-09-29
Publication date: 2011-05-25
Anticipated expiration: 2020-09-29

Abstract

The utility model discloses an anode of a compound type lithium primary battery, which has good mechanical strength and current-collecting and discharging effect and can bear high-current discharge and stronger impact shock. The anode of the compound type lithium primary battery comprises a current-collecting substrate, wherein a pure lithium foil or a lithium alloy foil is compounded on at least one face in the two faces of the current-collecting substrate. The anode of the compound type lithium primary battery has very good current-collecting effect and very good discharging effect; theoretically, the utilization rate of lithium can reach 100 percent; and meanwhile, the utility model also has very good flexibility and very good mechanical strength, enhances the capability of resisting the impact shock greatly and meets the requirement of a lithium primary battery with high current, high-temperature resistance and impact resistance to the performance of an anode.

Description

Compound lithium primary cell anode and lithium primary cell

Technical field

The utility model relates to lithium primary cell, refers more particularly to the lithium primary cell anode.

Background technology

At present, the anode of lithium primary cell (negative pole) roughly has three structures, first kind is directly to be made of pure lithium paper tinsel or lithium alloy paper tinsel, its mechanical strength, afflux and discharge effect are all relatively poor, use under at big electric current, high temperature, low temperature, than mal-conditions such as thump, vibrations, anode tends to occur fracture and has influence on normal use; Second kind is that lithium metal is plated on the metal forming by electric plating method, and in electroplating process, owing to be subjected to the influence of current density, the thickness diversity ratio of coating is bigger, and the improvement of afflux and discharge effect is limited; The third is to adopt roller to press or the mode of punching press, comes part to improve the discharge performance of lithium primary cell by local damascene copper (or nickel) chaff band (or net) as collector, uses under can not be at big electric current, high temperature, than mal-conditions such as thump, vibrations.

The utility model content

Technical problem to be solved in the utility model is: provide a kind of mechanical strength, afflux and discharge effect good, can bear compound lithium primary cell anode at current discharge and stronger impact endurance test shock.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: compound lithium primary cell anode comprises: the afflux base material in two faces of afflux base material, has at least to be compounded with pure lithium paper tinsel or lithium alloy paper tinsel on the face.

The two sides of described afflux base material all is compounded with pure lithium paper tinsel or lithium alloy paper tinsel.

Described afflux base material is nickel foil, aluminium foil or stainless steel foil.

Another technical problem to be solved in the utility model is: the lithium primary cell that a kind of mechanical strength, afflux and discharge effect are good, can bear heavy-current discharge and stronger impact endurance test shock is provided.

For solving another above-mentioned technical problem, the technical scheme that the utility model adopted is: lithium primary cell, comprise: housing and the loam cake that is arranged on the housing, be provided with the lithium primary cell core body in the housing, the anode in this lithium primary cell core body has adopted above-mentioned compound lithium primary cell anode.

The beneficial effects of the utility model are: this compound lithium primary cell anode of the present utility model, have fabulous afflux and fabulous discharge effect, and can reach 100% lithium utilance in theory; Simultaneously, also have fabulous gentle a piece of wood serving as a brake to halt a carriage and fabulous mechanical strength, the ability of shock resistance vibrations has obtained significantly improving, and has satisfied big electric current, high temperature resistant, shock-resistant lithium primary cell antianode performance demands.Adopt the lithium primary cell of this compound lithium primary cell anode also to possess the characteristic that mechanical strength, afflux and discharge effect are good, can bear heavy-current discharge and stronger impact endurance test shock.In addition, this compound lithium primary cell anode of the present utility model is suitable for streamline production.

Description of drawings

Fig. 1 is first kind of structural representation of anode described in the utility model.

Fig. 2 is second kind of structural representation of anode described in the utility model.

Fig. 3 is the third structural representation of anode described in the utility model.

Fig. 4 is the 4th a kind of structural representation of anode described in the utility model.

Among Fig. 1 to Fig. 4: 1, pure lithium paper tinsel, 2, the afflux base material, 3, the lithium alloy paper tinsel.

Embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.

As shown in Figure 1, compound lithium primary cell anode described in the utility model comprises: by the afflux base material 2 that nickel foil constitutes, the two sides of afflux base material 2 all is compounded with pure lithium paper tinsel 1 or lithium alloy paper tinsel 3---referring to shown in Figure 2.These two kinds of structures are two-sided compound lithium primary cell anode.

Compound lithium primary cell anode described in the utility model comprises: the afflux base material 2 by aluminium foil or stainless steel foil constitute, in two faces of afflux base material 2, have only to be compounded with pure lithium paper tinsel 1 or lithium alloy paper tinsel 3 on the upper surface---and referring to Fig. 3, shown in Figure 4.These two kinds of structures are the compound lithium primary cell anode of single face.

Lithium primary cell described in the utility model comprises: housing and the loam cake that is arranged on the housing, be provided with the lithium primary cell core body in the housing, and the anode in this lithium primary cell core body has adopted Fig. 1, Fig. 2, Fig. 3 or compound lithium primary cell anode shown in Figure 4.The concrete manufacture method of above-mentioned lithium primary cell is: humidity less than 5% dry environment under, the compound lithium primary cell anode of Fig. 1, Fig. 2, Fig. 3 or structure shown in Figure 4 is required the section of cutting into according to technology, soldering polar ear forms compound lithium primary cell anode strap; Then, with compound lithium primary cell anode strap and barrier film, cathode strip by the technology requirement, with the carbon bag, reel, half reel or form such as full coiling is made into cylindrical lithium primary cell core body with core; The lithium primary cell core body of making is put into housing, then, after positive pole ear and the welding of loam cake pole, with loam cake and housing press seal with the lithium primary cell core body; Then, with loam cake and housing girth welding; Then electrolyte is filled in the housing, after having irritated, the stifled weldering of liquid injection hole.

Claims

1. compound lithium primary cell anode is characterized in that: comprise the afflux base material, in two faces of afflux base material, have at least to be compounded with pure lithium paper tinsel or lithium alloy paper tinsel on the face.

2. compound lithium primary cell anode as claimed in claim 1 is characterized in that: the two sides of described afflux base material all is compounded with pure lithium paper tinsel or lithium alloy paper tinsel.

3. compound lithium primary cell anode as claimed in claim 1 or 2 is characterized in that: described afflux base material is nickel foil, aluminium foil or stainless steel foil.

4. lithium primary cell comprises: housing and be arranged on loam cake on the housing, be provided with the lithium primary cell core body in the housing, and it is characterized in that: the anode in this lithium primary cell core body has adopted the described compound lithium primary cell anode of claim 1.